cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1 | /* |
| 2 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3 | % % |
| 4 | % % |
| 5 | % % |
| 6 | % EEEEE FFFFF FFFFF EEEEE CCCC TTTTT % |
| 7 | % E F F E C T % |
| 8 | % EEE FFF FFF EEE C T % |
| 9 | % E F F E C T % |
| 10 | % EEEEE F F EEEEE CCCC T % |
| 11 | % % |
| 12 | % % |
| 13 | % MagickCore Image Effects Methods % |
| 14 | % % |
| 15 | % Software Design % |
| 16 | % John Cristy % |
| 17 | % October 1996 % |
| 18 | % % |
| 19 | % % |
cristy | 16af1cb | 2009-12-11 21:38:29 +0000 | [diff] [blame] | 20 | % Copyright 1999-2010 ImageMagick Studio LLC, a non-profit organization % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 21 | % dedicated to making software imaging solutions freely available. % |
| 22 | % % |
| 23 | % You may not use this file except in compliance with the License. You may % |
| 24 | % obtain a copy of the License at % |
| 25 | % % |
| 26 | % http://www.imagemagick.org/script/license.php % |
| 27 | % % |
| 28 | % Unless required by applicable law or agreed to in writing, software % |
| 29 | % distributed under the License is distributed on an "AS IS" BASIS, % |
| 30 | % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % |
| 31 | % See the License for the specific language governing permissions and % |
| 32 | % limitations under the License. % |
| 33 | % % |
| 34 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 35 | % |
| 36 | % |
| 37 | % |
| 38 | */ |
| 39 | |
| 40 | /* |
| 41 | Include declarations. |
| 42 | */ |
| 43 | #include "magick/studio.h" |
cristy | d43a46b | 2010-01-21 02:13:41 +0000 | [diff] [blame] | 44 | #include "magick/accelerate.h" |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 45 | #include "magick/blob.h" |
| 46 | #include "magick/cache-view.h" |
| 47 | #include "magick/color.h" |
| 48 | #include "magick/color-private.h" |
| 49 | #include "magick/colorspace.h" |
| 50 | #include "magick/constitute.h" |
| 51 | #include "magick/decorate.h" |
| 52 | #include "magick/draw.h" |
| 53 | #include "magick/enhance.h" |
| 54 | #include "magick/exception.h" |
| 55 | #include "magick/exception-private.h" |
| 56 | #include "magick/effect.h" |
| 57 | #include "magick/fx.h" |
| 58 | #include "magick/gem.h" |
| 59 | #include "magick/geometry.h" |
| 60 | #include "magick/image-private.h" |
| 61 | #include "magick/list.h" |
| 62 | #include "magick/log.h" |
| 63 | #include "magick/memory_.h" |
| 64 | #include "magick/monitor.h" |
| 65 | #include "magick/monitor-private.h" |
| 66 | #include "magick/montage.h" |
cristy | 6771f1e | 2010-03-05 19:43:39 +0000 | [diff] [blame] | 67 | #include "magick/morphology.h" |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 68 | #include "magick/paint.h" |
| 69 | #include "magick/pixel-private.h" |
| 70 | #include "magick/property.h" |
| 71 | #include "magick/quantize.h" |
| 72 | #include "magick/quantum.h" |
| 73 | #include "magick/random_.h" |
| 74 | #include "magick/random-private.h" |
| 75 | #include "magick/resample.h" |
| 76 | #include "magick/resample-private.h" |
| 77 | #include "magick/resize.h" |
| 78 | #include "magick/resource_.h" |
| 79 | #include "magick/segment.h" |
| 80 | #include "magick/shear.h" |
| 81 | #include "magick/signature-private.h" |
| 82 | #include "magick/string_.h" |
| 83 | #include "magick/thread-private.h" |
| 84 | #include "magick/transform.h" |
| 85 | #include "magick/threshold.h" |
| 86 | |
| 87 | /* |
| 88 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 89 | % % |
| 90 | % % |
| 91 | % % |
| 92 | % A d a p t i v e B l u r I m a g e % |
| 93 | % % |
| 94 | % % |
| 95 | % % |
| 96 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 97 | % |
| 98 | % AdaptiveBlurImage() adaptively blurs the image by blurring less |
| 99 | % intensely near image edges and more intensely far from edges. We blur the |
| 100 | % image with a Gaussian operator of the given radius and standard deviation |
| 101 | % (sigma). For reasonable results, radius should be larger than sigma. Use a |
| 102 | % radius of 0 and AdaptiveBlurImage() selects a suitable radius for you. |
| 103 | % |
| 104 | % The format of the AdaptiveBlurImage method is: |
| 105 | % |
| 106 | % Image *AdaptiveBlurImage(const Image *image,const double radius, |
| 107 | % const double sigma,ExceptionInfo *exception) |
| 108 | % Image *AdaptiveBlurImageChannel(const Image *image, |
| 109 | % const ChannelType channel,double radius,const double sigma, |
| 110 | % ExceptionInfo *exception) |
| 111 | % |
| 112 | % A description of each parameter follows: |
| 113 | % |
| 114 | % o image: the image. |
| 115 | % |
| 116 | % o channel: the channel type. |
| 117 | % |
| 118 | % o radius: the radius of the Gaussian, in pixels, not counting the center |
| 119 | % pixel. |
| 120 | % |
| 121 | % o sigma: the standard deviation of the Laplacian, in pixels. |
| 122 | % |
| 123 | % o exception: return any errors or warnings in this structure. |
| 124 | % |
| 125 | */ |
| 126 | |
| 127 | MagickExport Image *AdaptiveBlurImage(const Image *image,const double radius, |
| 128 | const double sigma,ExceptionInfo *exception) |
| 129 | { |
| 130 | Image |
| 131 | *blur_image; |
| 132 | |
| 133 | blur_image=AdaptiveBlurImageChannel(image,DefaultChannels,radius,sigma, |
| 134 | exception); |
| 135 | return(blur_image); |
| 136 | } |
| 137 | |
| 138 | MagickExport Image *AdaptiveBlurImageChannel(const Image *image, |
| 139 | const ChannelType channel,const double radius,const double sigma, |
| 140 | ExceptionInfo *exception) |
| 141 | { |
| 142 | #define AdaptiveBlurImageTag "Convolve/Image" |
| 143 | #define MagickSigma (fabs(sigma) <= MagickEpsilon ? 1.0 : sigma) |
| 144 | |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 145 | CacheView |
| 146 | *blur_view, |
| 147 | *edge_view, |
| 148 | *image_view; |
| 149 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 150 | double |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 151 | **kernel, |
| 152 | normalize; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 153 | |
| 154 | Image |
| 155 | *blur_image, |
| 156 | *edge_image, |
| 157 | *gaussian_image; |
| 158 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 159 | MagickBooleanType |
| 160 | status; |
| 161 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 162 | MagickOffsetType |
| 163 | progress; |
| 164 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 165 | MagickPixelPacket |
cristy | ddd8220 | 2009-11-03 20:14:50 +0000 | [diff] [blame] | 166 | bias; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 167 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 168 | register ssize_t |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 169 | i; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 170 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 171 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 172 | width; |
| 173 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 174 | ssize_t |
| 175 | j, |
| 176 | k, |
| 177 | u, |
| 178 | v, |
| 179 | y; |
| 180 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 181 | assert(image != (const Image *) NULL); |
| 182 | assert(image->signature == MagickSignature); |
| 183 | if (image->debug != MagickFalse) |
| 184 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 185 | assert(exception != (ExceptionInfo *) NULL); |
| 186 | assert(exception->signature == MagickSignature); |
| 187 | blur_image=CloneImage(image,image->columns,image->rows,MagickTrue,exception); |
| 188 | if (blur_image == (Image *) NULL) |
| 189 | return((Image *) NULL); |
| 190 | if (fabs(sigma) <= MagickEpsilon) |
| 191 | return(blur_image); |
| 192 | if (SetImageStorageClass(blur_image,DirectClass) == MagickFalse) |
| 193 | { |
| 194 | InheritException(exception,&blur_image->exception); |
| 195 | blur_image=DestroyImage(blur_image); |
| 196 | return((Image *) NULL); |
| 197 | } |
| 198 | /* |
| 199 | Edge detect the image brighness channel, level, blur, and level again. |
| 200 | */ |
| 201 | edge_image=EdgeImage(image,radius,exception); |
| 202 | if (edge_image == (Image *) NULL) |
| 203 | { |
| 204 | blur_image=DestroyImage(blur_image); |
| 205 | return((Image *) NULL); |
| 206 | } |
| 207 | (void) LevelImage(edge_image,"20%,95%"); |
| 208 | gaussian_image=GaussianBlurImage(edge_image,radius,sigma,exception); |
| 209 | if (gaussian_image != (Image *) NULL) |
| 210 | { |
| 211 | edge_image=DestroyImage(edge_image); |
| 212 | edge_image=gaussian_image; |
| 213 | } |
| 214 | (void) LevelImage(edge_image,"10%,95%"); |
| 215 | /* |
| 216 | Create a set of kernels from maximum (radius,sigma) to minimum. |
| 217 | */ |
| 218 | width=GetOptimalKernelWidth2D(radius,sigma); |
| 219 | kernel=(double **) AcquireQuantumMemory((size_t) width,sizeof(*kernel)); |
| 220 | if (kernel == (double **) NULL) |
| 221 | { |
| 222 | edge_image=DestroyImage(edge_image); |
| 223 | blur_image=DestroyImage(blur_image); |
| 224 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 225 | } |
| 226 | (void) ResetMagickMemory(kernel,0,(size_t) width*sizeof(*kernel)); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 227 | for (i=0; i < (ssize_t) width; i+=2) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 228 | { |
| 229 | kernel[i]=(double *) AcquireQuantumMemory((size_t) (width-i),(width-i)* |
| 230 | sizeof(**kernel)); |
| 231 | if (kernel[i] == (double *) NULL) |
| 232 | break; |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 233 | normalize=0.0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 234 | j=(ssize_t) (width-i)/2; |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 235 | k=0; |
| 236 | for (v=(-j); v <= j; v++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 237 | { |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 238 | for (u=(-j); u <= j; u++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 239 | { |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 240 | kernel[i][k]=exp(-((double) u*u+v*v)/(2.0*MagickSigma*MagickSigma))/ |
| 241 | (2.0*MagickPI*MagickSigma*MagickSigma); |
| 242 | normalize+=kernel[i][k]; |
| 243 | k++; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 244 | } |
| 245 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 246 | if (fabs(normalize) <= MagickEpsilon) |
| 247 | normalize=1.0; |
| 248 | normalize=1.0/normalize; |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 249 | for (k=0; k < (j*j); k++) |
| 250 | kernel[i][k]=normalize*kernel[i][k]; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 251 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 252 | if (i < (ssize_t) width) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 253 | { |
| 254 | for (i-=2; i >= 0; i-=2) |
| 255 | kernel[i]=(double *) RelinquishMagickMemory(kernel[i]); |
| 256 | kernel=(double **) RelinquishMagickMemory(kernel); |
| 257 | edge_image=DestroyImage(edge_image); |
| 258 | blur_image=DestroyImage(blur_image); |
| 259 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 260 | } |
| 261 | /* |
| 262 | Adaptively blur image. |
| 263 | */ |
| 264 | status=MagickTrue; |
| 265 | progress=0; |
cristy | ddd8220 | 2009-11-03 20:14:50 +0000 | [diff] [blame] | 266 | GetMagickPixelPacket(image,&bias); |
| 267 | SetMagickPixelPacketBias(image,&bias); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 268 | image_view=AcquireCacheView(image); |
| 269 | edge_view=AcquireCacheView(edge_image); |
| 270 | blur_view=AcquireCacheView(blur_image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 271 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 272 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 273 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 274 | for (y=0; y < (ssize_t) blur_image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 275 | { |
| 276 | register const IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 277 | *restrict indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 278 | |
| 279 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 280 | *restrict p, |
| 281 | *restrict r; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 282 | |
| 283 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 284 | *restrict blur_indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 285 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 286 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 287 | x; |
| 288 | |
| 289 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 290 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 291 | |
| 292 | if (status == MagickFalse) |
| 293 | continue; |
| 294 | r=GetCacheViewVirtualPixels(edge_view,0,y,edge_image->columns,1,exception); |
| 295 | q=QueueCacheViewAuthenticPixels(blur_view,0,y,blur_image->columns,1, |
| 296 | exception); |
| 297 | if ((r == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 298 | { |
| 299 | status=MagickFalse; |
| 300 | continue; |
| 301 | } |
| 302 | blur_indexes=GetCacheViewAuthenticIndexQueue(blur_view); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 303 | for (x=0; x < (ssize_t) blur_image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 304 | { |
| 305 | MagickPixelPacket |
| 306 | pixel; |
| 307 | |
| 308 | MagickRealType |
| 309 | alpha, |
| 310 | gamma; |
| 311 | |
| 312 | register const double |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 313 | *restrict k; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 314 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 315 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 316 | i, |
| 317 | u, |
| 318 | v; |
| 319 | |
| 320 | gamma=0.0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 321 | i=(ssize_t) ceil((double) width*QuantumScale*PixelIntensity(r)-0.5); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 322 | if (i < 0) |
| 323 | i=0; |
| 324 | else |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 325 | if (i > (ssize_t) width) |
| 326 | i=(ssize_t) width; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 327 | if ((i & 0x01) != 0) |
| 328 | i--; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 329 | p=GetCacheViewVirtualPixels(image_view,x-((ssize_t) (width-i)/2L),y-(ssize_t) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 330 | ((width-i)/2L),width-i,width-i,exception); |
| 331 | if (p == (const PixelPacket *) NULL) |
| 332 | break; |
| 333 | indexes=GetCacheViewVirtualIndexQueue(image_view); |
cristy | ddd8220 | 2009-11-03 20:14:50 +0000 | [diff] [blame] | 334 | pixel=bias; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 335 | k=kernel[i]; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 336 | for (v=0; v < (ssize_t) (width-i); v++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 337 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 338 | for (u=0; u < (ssize_t) (width-i); u++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 339 | { |
| 340 | alpha=1.0; |
| 341 | if (((channel & OpacityChannel) != 0) && |
| 342 | (image->matte != MagickFalse)) |
cristy | 46f0820 | 2010-01-10 04:04:21 +0000 | [diff] [blame] | 343 | alpha=(MagickRealType) (QuantumScale*GetAlphaPixelComponent(p)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 344 | if ((channel & RedChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 345 | pixel.red+=(*k)*alpha*GetRedPixelComponent(p); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 346 | if ((channel & GreenChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 347 | pixel.green+=(*k)*alpha*GetGreenPixelComponent(p); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 348 | if ((channel & BlueChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 349 | pixel.blue+=(*k)*alpha*GetBluePixelComponent(p); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 350 | if ((channel & OpacityChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 351 | pixel.opacity+=(*k)*GetOpacityPixelComponent(p); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 352 | if (((channel & IndexChannel) != 0) && |
| 353 | (image->colorspace == CMYKColorspace)) |
| 354 | pixel.index+=(*k)*alpha*indexes[x+(width-i)*v+u]; |
| 355 | gamma+=(*k)*alpha; |
| 356 | k++; |
| 357 | p++; |
| 358 | } |
| 359 | } |
| 360 | gamma=1.0/(fabs((double) gamma) <= MagickEpsilon ? 1.0 : gamma); |
| 361 | if ((channel & RedChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 362 | q->red=ClampToQuantum(gamma*GetRedPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 363 | if ((channel & GreenChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 364 | q->green=ClampToQuantum(gamma*GetGreenPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 365 | if ((channel & BlueChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 366 | q->blue=ClampToQuantum(gamma*GetBluePixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 367 | if ((channel & OpacityChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 368 | SetOpacityPixelComponent(q,ClampOpacityPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 369 | if (((channel & IndexChannel) != 0) && |
| 370 | (image->colorspace == CMYKColorspace)) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 371 | blur_indexes[x]=ClampToQuantum(gamma*GetIndexPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 372 | q++; |
| 373 | r++; |
| 374 | } |
| 375 | if (SyncCacheViewAuthenticPixels(blur_view,exception) == MagickFalse) |
| 376 | status=MagickFalse; |
| 377 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 378 | { |
| 379 | MagickBooleanType |
| 380 | proceed; |
| 381 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 382 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 383 | #pragma omp critical (MagickCore_AdaptiveBlurImageChannel) |
| 384 | #endif |
| 385 | proceed=SetImageProgress(image,AdaptiveBlurImageTag,progress++, |
| 386 | image->rows); |
| 387 | if (proceed == MagickFalse) |
| 388 | status=MagickFalse; |
| 389 | } |
| 390 | } |
| 391 | blur_image->type=image->type; |
| 392 | blur_view=DestroyCacheView(blur_view); |
| 393 | edge_view=DestroyCacheView(edge_view); |
| 394 | image_view=DestroyCacheView(image_view); |
| 395 | edge_image=DestroyImage(edge_image); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 396 | for (i=0; i < (ssize_t) width; i+=2) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 397 | kernel[i]=(double *) RelinquishMagickMemory(kernel[i]); |
| 398 | kernel=(double **) RelinquishMagickMemory(kernel); |
| 399 | if (status == MagickFalse) |
| 400 | blur_image=DestroyImage(blur_image); |
| 401 | return(blur_image); |
| 402 | } |
| 403 | |
| 404 | /* |
| 405 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 406 | % % |
| 407 | % % |
| 408 | % % |
| 409 | % A d a p t i v e S h a r p e n I m a g e % |
| 410 | % % |
| 411 | % % |
| 412 | % % |
| 413 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 414 | % |
| 415 | % AdaptiveSharpenImage() adaptively sharpens the image by sharpening more |
| 416 | % intensely near image edges and less intensely far from edges. We sharpen the |
| 417 | % image with a Gaussian operator of the given radius and standard deviation |
| 418 | % (sigma). For reasonable results, radius should be larger than sigma. Use a |
| 419 | % radius of 0 and AdaptiveSharpenImage() selects a suitable radius for you. |
| 420 | % |
| 421 | % The format of the AdaptiveSharpenImage method is: |
| 422 | % |
| 423 | % Image *AdaptiveSharpenImage(const Image *image,const double radius, |
| 424 | % const double sigma,ExceptionInfo *exception) |
| 425 | % Image *AdaptiveSharpenImageChannel(const Image *image, |
| 426 | % const ChannelType channel,double radius,const double sigma, |
| 427 | % ExceptionInfo *exception) |
| 428 | % |
| 429 | % A description of each parameter follows: |
| 430 | % |
| 431 | % o image: the image. |
| 432 | % |
| 433 | % o channel: the channel type. |
| 434 | % |
| 435 | % o radius: the radius of the Gaussian, in pixels, not counting the center |
| 436 | % pixel. |
| 437 | % |
| 438 | % o sigma: the standard deviation of the Laplacian, in pixels. |
| 439 | % |
| 440 | % o exception: return any errors or warnings in this structure. |
| 441 | % |
| 442 | */ |
| 443 | |
| 444 | MagickExport Image *AdaptiveSharpenImage(const Image *image,const double radius, |
| 445 | const double sigma,ExceptionInfo *exception) |
| 446 | { |
| 447 | Image |
| 448 | *sharp_image; |
| 449 | |
| 450 | sharp_image=AdaptiveSharpenImageChannel(image,DefaultChannels,radius,sigma, |
| 451 | exception); |
| 452 | return(sharp_image); |
| 453 | } |
| 454 | |
| 455 | MagickExport Image *AdaptiveSharpenImageChannel(const Image *image, |
| 456 | const ChannelType channel,const double radius,const double sigma, |
| 457 | ExceptionInfo *exception) |
| 458 | { |
| 459 | #define AdaptiveSharpenImageTag "Convolve/Image" |
| 460 | #define MagickSigma (fabs(sigma) <= MagickEpsilon ? 1.0 : sigma) |
| 461 | |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 462 | CacheView |
| 463 | *sharp_view, |
| 464 | *edge_view, |
| 465 | *image_view; |
| 466 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 467 | double |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 468 | **kernel, |
| 469 | normalize; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 470 | |
| 471 | Image |
| 472 | *sharp_image, |
| 473 | *edge_image, |
| 474 | *gaussian_image; |
| 475 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 476 | MagickBooleanType |
| 477 | status; |
| 478 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 479 | MagickOffsetType |
| 480 | progress; |
| 481 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 482 | MagickPixelPacket |
cristy | ddd8220 | 2009-11-03 20:14:50 +0000 | [diff] [blame] | 483 | bias; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 484 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 485 | register ssize_t |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 486 | i; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 487 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 488 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 489 | width; |
| 490 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 491 | ssize_t |
| 492 | j, |
| 493 | k, |
| 494 | u, |
| 495 | v, |
| 496 | y; |
| 497 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 498 | assert(image != (const Image *) NULL); |
| 499 | assert(image->signature == MagickSignature); |
| 500 | if (image->debug != MagickFalse) |
| 501 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 502 | assert(exception != (ExceptionInfo *) NULL); |
| 503 | assert(exception->signature == MagickSignature); |
| 504 | sharp_image=CloneImage(image,0,0,MagickTrue,exception); |
| 505 | if (sharp_image == (Image *) NULL) |
| 506 | return((Image *) NULL); |
| 507 | if (fabs(sigma) <= MagickEpsilon) |
| 508 | return(sharp_image); |
| 509 | if (SetImageStorageClass(sharp_image,DirectClass) == MagickFalse) |
| 510 | { |
| 511 | InheritException(exception,&sharp_image->exception); |
| 512 | sharp_image=DestroyImage(sharp_image); |
| 513 | return((Image *) NULL); |
| 514 | } |
| 515 | /* |
| 516 | Edge detect the image brighness channel, level, sharp, and level again. |
| 517 | */ |
| 518 | edge_image=EdgeImage(image,radius,exception); |
| 519 | if (edge_image == (Image *) NULL) |
| 520 | { |
| 521 | sharp_image=DestroyImage(sharp_image); |
| 522 | return((Image *) NULL); |
| 523 | } |
| 524 | (void) LevelImage(edge_image,"20%,95%"); |
| 525 | gaussian_image=GaussianBlurImage(edge_image,radius,sigma,exception); |
| 526 | if (gaussian_image != (Image *) NULL) |
| 527 | { |
| 528 | edge_image=DestroyImage(edge_image); |
| 529 | edge_image=gaussian_image; |
| 530 | } |
| 531 | (void) LevelImage(edge_image,"10%,95%"); |
| 532 | /* |
| 533 | Create a set of kernels from maximum (radius,sigma) to minimum. |
| 534 | */ |
| 535 | width=GetOptimalKernelWidth2D(radius,sigma); |
| 536 | kernel=(double **) AcquireQuantumMemory((size_t) width,sizeof(*kernel)); |
| 537 | if (kernel == (double **) NULL) |
| 538 | { |
| 539 | edge_image=DestroyImage(edge_image); |
| 540 | sharp_image=DestroyImage(sharp_image); |
| 541 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 542 | } |
| 543 | (void) ResetMagickMemory(kernel,0,(size_t) width*sizeof(*kernel)); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 544 | for (i=0; i < (ssize_t) width; i+=2) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 545 | { |
| 546 | kernel[i]=(double *) AcquireQuantumMemory((size_t) (width-i),(width-i)* |
| 547 | sizeof(**kernel)); |
| 548 | if (kernel[i] == (double *) NULL) |
| 549 | break; |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 550 | normalize=0.0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 551 | j=(ssize_t) (width-i)/2; |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 552 | k=0; |
| 553 | for (v=(-j); v <= j; v++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 554 | { |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 555 | for (u=(-j); u <= j; u++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 556 | { |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 557 | kernel[i][k]=(-exp(-((double) u*u+v*v)/(2.0*MagickSigma*MagickSigma))/ |
| 558 | (2.0*MagickPI*MagickSigma*MagickSigma)); |
| 559 | normalize+=kernel[i][k]; |
| 560 | k++; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 561 | } |
| 562 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 563 | if (fabs(normalize) <= MagickEpsilon) |
| 564 | normalize=1.0; |
| 565 | normalize=1.0/normalize; |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 566 | for (k=0; k < (j*j); k++) |
| 567 | kernel[i][k]=normalize*kernel[i][k]; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 568 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 569 | if (i < (ssize_t) width) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 570 | { |
| 571 | for (i-=2; i >= 0; i-=2) |
| 572 | kernel[i]=(double *) RelinquishMagickMemory(kernel[i]); |
| 573 | kernel=(double **) RelinquishMagickMemory(kernel); |
| 574 | edge_image=DestroyImage(edge_image); |
| 575 | sharp_image=DestroyImage(sharp_image); |
| 576 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 577 | } |
| 578 | /* |
| 579 | Adaptively sharpen image. |
| 580 | */ |
| 581 | status=MagickTrue; |
| 582 | progress=0; |
cristy | ddd8220 | 2009-11-03 20:14:50 +0000 | [diff] [blame] | 583 | GetMagickPixelPacket(image,&bias); |
| 584 | SetMagickPixelPacketBias(image,&bias); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 585 | image_view=AcquireCacheView(image); |
| 586 | edge_view=AcquireCacheView(edge_image); |
| 587 | sharp_view=AcquireCacheView(sharp_image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 588 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 589 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 590 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 591 | for (y=0; y < (ssize_t) sharp_image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 592 | { |
| 593 | register const IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 594 | *restrict indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 595 | |
| 596 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 597 | *restrict p, |
| 598 | *restrict r; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 599 | |
| 600 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 601 | *restrict sharp_indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 602 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 603 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 604 | x; |
| 605 | |
| 606 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 607 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 608 | |
| 609 | if (status == MagickFalse) |
| 610 | continue; |
| 611 | r=GetCacheViewVirtualPixels(edge_view,0,y,edge_image->columns,1,exception); |
| 612 | q=QueueCacheViewAuthenticPixels(sharp_view,0,y,sharp_image->columns,1, |
| 613 | exception); |
| 614 | if ((r == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 615 | { |
| 616 | status=MagickFalse; |
| 617 | continue; |
| 618 | } |
| 619 | sharp_indexes=GetCacheViewAuthenticIndexQueue(sharp_view); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 620 | for (x=0; x < (ssize_t) sharp_image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 621 | { |
| 622 | MagickPixelPacket |
| 623 | pixel; |
| 624 | |
| 625 | MagickRealType |
| 626 | alpha, |
| 627 | gamma; |
| 628 | |
| 629 | register const double |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 630 | *restrict k; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 631 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 632 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 633 | i, |
| 634 | u, |
| 635 | v; |
| 636 | |
| 637 | gamma=0.0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 638 | i=(ssize_t) ceil((double) width*(QuantumRange-QuantumScale* |
cristy | 1f9ce9f | 2010-04-28 11:55:12 +0000 | [diff] [blame] | 639 | PixelIntensity(r))-0.5); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 640 | if (i < 0) |
| 641 | i=0; |
| 642 | else |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 643 | if (i > (ssize_t) width) |
| 644 | i=(ssize_t) width; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 645 | if ((i & 0x01) != 0) |
| 646 | i--; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 647 | p=GetCacheViewVirtualPixels(image_view,x-((ssize_t) (width-i)/2L),y-(ssize_t) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 648 | ((width-i)/2L),width-i,width-i,exception); |
| 649 | if (p == (const PixelPacket *) NULL) |
| 650 | break; |
| 651 | indexes=GetCacheViewVirtualIndexQueue(image_view); |
| 652 | k=kernel[i]; |
cristy | ddd8220 | 2009-11-03 20:14:50 +0000 | [diff] [blame] | 653 | pixel=bias; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 654 | for (v=0; v < (ssize_t) (width-i); v++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 655 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 656 | for (u=0; u < (ssize_t) (width-i); u++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 657 | { |
| 658 | alpha=1.0; |
| 659 | if (((channel & OpacityChannel) != 0) && |
| 660 | (image->matte != MagickFalse)) |
cristy | 46f0820 | 2010-01-10 04:04:21 +0000 | [diff] [blame] | 661 | alpha=(MagickRealType) (QuantumScale*GetAlphaPixelComponent(p)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 662 | if ((channel & RedChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 663 | pixel.red+=(*k)*alpha*GetRedPixelComponent(p); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 664 | if ((channel & GreenChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 665 | pixel.green+=(*k)*alpha*GetGreenPixelComponent(p); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 666 | if ((channel & BlueChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 667 | pixel.blue+=(*k)*alpha*GetBluePixelComponent(p); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 668 | if ((channel & OpacityChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 669 | pixel.opacity+=(*k)*GetOpacityPixelComponent(p); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 670 | if (((channel & IndexChannel) != 0) && |
| 671 | (image->colorspace == CMYKColorspace)) |
| 672 | pixel.index+=(*k)*alpha*indexes[x+(width-i)*v+u]; |
| 673 | gamma+=(*k)*alpha; |
| 674 | k++; |
| 675 | p++; |
| 676 | } |
| 677 | } |
| 678 | gamma=1.0/(fabs((double) gamma) <= MagickEpsilon ? 1.0 : gamma); |
| 679 | if ((channel & RedChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 680 | q->red=ClampToQuantum(gamma*GetRedPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 681 | if ((channel & GreenChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 682 | q->green=ClampToQuantum(gamma*GetGreenPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 683 | if ((channel & BlueChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 684 | q->blue=ClampToQuantum(gamma*GetBluePixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 685 | if ((channel & OpacityChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 686 | SetOpacityPixelComponent(q,ClampOpacityPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 687 | if (((channel & IndexChannel) != 0) && |
| 688 | (image->colorspace == CMYKColorspace)) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 689 | sharp_indexes[x]=ClampToQuantum(gamma*GetIndexPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 690 | q++; |
| 691 | r++; |
| 692 | } |
| 693 | if (SyncCacheViewAuthenticPixels(sharp_view,exception) == MagickFalse) |
| 694 | status=MagickFalse; |
| 695 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 696 | { |
| 697 | MagickBooleanType |
| 698 | proceed; |
| 699 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 700 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 701 | #pragma omp critical (MagickCore_AdaptiveSharpenImageChannel) |
| 702 | #endif |
| 703 | proceed=SetImageProgress(image,AdaptiveSharpenImageTag,progress++, |
| 704 | image->rows); |
| 705 | if (proceed == MagickFalse) |
| 706 | status=MagickFalse; |
| 707 | } |
| 708 | } |
| 709 | sharp_image->type=image->type; |
| 710 | sharp_view=DestroyCacheView(sharp_view); |
| 711 | edge_view=DestroyCacheView(edge_view); |
| 712 | image_view=DestroyCacheView(image_view); |
| 713 | edge_image=DestroyImage(edge_image); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 714 | for (i=0; i < (ssize_t) width; i+=2) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 715 | kernel[i]=(double *) RelinquishMagickMemory(kernel[i]); |
| 716 | kernel=(double **) RelinquishMagickMemory(kernel); |
| 717 | if (status == MagickFalse) |
| 718 | sharp_image=DestroyImage(sharp_image); |
| 719 | return(sharp_image); |
| 720 | } |
| 721 | |
| 722 | /* |
| 723 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 724 | % % |
| 725 | % % |
| 726 | % % |
| 727 | % B l u r I m a g e % |
| 728 | % % |
| 729 | % % |
| 730 | % % |
| 731 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 732 | % |
| 733 | % BlurImage() blurs an image. We convolve the image with a Gaussian operator |
| 734 | % of the given radius and standard deviation (sigma). For reasonable results, |
| 735 | % the radius should be larger than sigma. Use a radius of 0 and BlurImage() |
| 736 | % selects a suitable radius for you. |
| 737 | % |
| 738 | % BlurImage() differs from GaussianBlurImage() in that it uses a separable |
| 739 | % kernel which is faster but mathematically equivalent to the non-separable |
| 740 | % kernel. |
| 741 | % |
| 742 | % The format of the BlurImage method is: |
| 743 | % |
| 744 | % Image *BlurImage(const Image *image,const double radius, |
| 745 | % const double sigma,ExceptionInfo *exception) |
| 746 | % Image *BlurImageChannel(const Image *image,const ChannelType channel, |
| 747 | % const double radius,const double sigma,ExceptionInfo *exception) |
| 748 | % |
| 749 | % A description of each parameter follows: |
| 750 | % |
| 751 | % o image: the image. |
| 752 | % |
| 753 | % o channel: the channel type. |
| 754 | % |
| 755 | % o radius: the radius of the Gaussian, in pixels, not counting the center |
| 756 | % pixel. |
| 757 | % |
| 758 | % o sigma: the standard deviation of the Gaussian, in pixels. |
| 759 | % |
| 760 | % o exception: return any errors or warnings in this structure. |
| 761 | % |
| 762 | */ |
| 763 | |
| 764 | MagickExport Image *BlurImage(const Image *image,const double radius, |
| 765 | const double sigma,ExceptionInfo *exception) |
| 766 | { |
| 767 | Image |
| 768 | *blur_image; |
| 769 | |
| 770 | blur_image=BlurImageChannel(image,DefaultChannels,radius,sigma,exception); |
| 771 | return(blur_image); |
| 772 | } |
| 773 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 774 | static double *GetBlurKernel(const size_t width,const double sigma) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 775 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 776 | double |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 777 | *kernel, |
| 778 | normalize; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 779 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 780 | ssize_t |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 781 | j, |
| 782 | k; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 783 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 784 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 785 | i; |
| 786 | |
| 787 | /* |
| 788 | Generate a 1-D convolution kernel. |
| 789 | */ |
| 790 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); |
| 791 | kernel=(double *) AcquireQuantumMemory((size_t) width,sizeof(*kernel)); |
| 792 | if (kernel == (double *) NULL) |
| 793 | return(0); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 794 | normalize=0.0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 795 | j=(ssize_t) width/2; |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 796 | i=0; |
| 797 | for (k=(-j); k <= j; k++) |
| 798 | { |
cristy | f267c72 | 2009-12-18 00:07:22 +0000 | [diff] [blame] | 799 | kernel[i]=exp(-((double) k*k)/(2.0*MagickSigma*MagickSigma))/ |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 800 | (MagickSQ2PI*MagickSigma); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 801 | normalize+=kernel[i]; |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 802 | i++; |
| 803 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 804 | for (i=0; i < (ssize_t) width; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 805 | kernel[i]/=normalize; |
| 806 | return(kernel); |
| 807 | } |
| 808 | |
| 809 | MagickExport Image *BlurImageChannel(const Image *image, |
| 810 | const ChannelType channel,const double radius,const double sigma, |
| 811 | ExceptionInfo *exception) |
| 812 | { |
| 813 | #define BlurImageTag "Blur/Image" |
| 814 | |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 815 | CacheView |
| 816 | *blur_view, |
| 817 | *image_view; |
| 818 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 819 | double |
| 820 | *kernel; |
| 821 | |
| 822 | Image |
| 823 | *blur_image; |
| 824 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 825 | MagickBooleanType |
| 826 | status; |
| 827 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 828 | MagickOffsetType |
| 829 | progress; |
| 830 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 831 | MagickPixelPacket |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 832 | bias; |
| 833 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 834 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 835 | i; |
| 836 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 837 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 838 | width; |
| 839 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 840 | ssize_t |
| 841 | x, |
| 842 | y; |
| 843 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 844 | /* |
| 845 | Initialize blur image attributes. |
| 846 | */ |
| 847 | assert(image != (Image *) NULL); |
| 848 | assert(image->signature == MagickSignature); |
| 849 | if (image->debug != MagickFalse) |
| 850 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 851 | assert(exception != (ExceptionInfo *) NULL); |
| 852 | assert(exception->signature == MagickSignature); |
| 853 | blur_image=CloneImage(image,0,0,MagickTrue,exception); |
| 854 | if (blur_image == (Image *) NULL) |
| 855 | return((Image *) NULL); |
| 856 | if (fabs(sigma) <= MagickEpsilon) |
| 857 | return(blur_image); |
| 858 | if (SetImageStorageClass(blur_image,DirectClass) == MagickFalse) |
| 859 | { |
| 860 | InheritException(exception,&blur_image->exception); |
| 861 | blur_image=DestroyImage(blur_image); |
| 862 | return((Image *) NULL); |
| 863 | } |
| 864 | width=GetOptimalKernelWidth1D(radius,sigma); |
| 865 | kernel=GetBlurKernel(width,sigma); |
| 866 | if (kernel == (double *) NULL) |
| 867 | { |
| 868 | blur_image=DestroyImage(blur_image); |
| 869 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 870 | } |
| 871 | if (image->debug != MagickFalse) |
| 872 | { |
| 873 | char |
| 874 | format[MaxTextExtent], |
| 875 | *message; |
| 876 | |
| 877 | register const double |
| 878 | *k; |
| 879 | |
| 880 | (void) LogMagickEvent(TransformEvent,GetMagickModule(), |
| 881 | " BlurImage with %ld kernel:",width); |
| 882 | message=AcquireString(""); |
| 883 | k=kernel; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 884 | for (i=0; i < (ssize_t) width; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 885 | { |
| 886 | *message='\0'; |
| 887 | (void) FormatMagickString(format,MaxTextExtent,"%ld: ",i); |
| 888 | (void) ConcatenateString(&message,format); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 889 | (void) FormatMagickString(format,MaxTextExtent,"%g ",*k++); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 890 | (void) ConcatenateString(&message,format); |
| 891 | (void) LogMagickEvent(TransformEvent,GetMagickModule(),"%s",message); |
| 892 | } |
| 893 | message=DestroyString(message); |
| 894 | } |
| 895 | /* |
| 896 | Blur rows. |
| 897 | */ |
| 898 | status=MagickTrue; |
| 899 | progress=0; |
cristy | ddd8220 | 2009-11-03 20:14:50 +0000 | [diff] [blame] | 900 | GetMagickPixelPacket(image,&bias); |
| 901 | SetMagickPixelPacketBias(image,&bias); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 902 | image_view=AcquireCacheView(image); |
| 903 | blur_view=AcquireCacheView(blur_image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 904 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 905 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 906 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 907 | for (y=0; y < (ssize_t) blur_image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 908 | { |
| 909 | register const IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 910 | *restrict indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 911 | |
| 912 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 913 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 914 | |
| 915 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 916 | *restrict blur_indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 917 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 918 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 919 | x; |
| 920 | |
| 921 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 922 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 923 | |
| 924 | if (status == MagickFalse) |
| 925 | continue; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 926 | p=GetCacheViewVirtualPixels(image_view,-((ssize_t) width/2L),y,image->columns+ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 927 | width,1,exception); |
| 928 | q=GetCacheViewAuthenticPixels(blur_view,0,y,blur_image->columns,1, |
| 929 | exception); |
| 930 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 931 | { |
| 932 | status=MagickFalse; |
| 933 | continue; |
| 934 | } |
| 935 | indexes=GetCacheViewVirtualIndexQueue(image_view); |
| 936 | blur_indexes=GetCacheViewAuthenticIndexQueue(blur_view); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 937 | for (x=0; x < (ssize_t) blur_image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 938 | { |
| 939 | MagickPixelPacket |
| 940 | pixel; |
| 941 | |
| 942 | register const double |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 943 | *restrict k; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 944 | |
| 945 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 946 | *restrict kernel_pixels; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 947 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 948 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 949 | i; |
| 950 | |
cristy | ddd8220 | 2009-11-03 20:14:50 +0000 | [diff] [blame] | 951 | pixel=bias; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 952 | k=kernel; |
| 953 | kernel_pixels=p; |
| 954 | if (((channel & OpacityChannel) == 0) || (image->matte == MagickFalse)) |
| 955 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 956 | for (i=0; i < (ssize_t) width; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 957 | { |
| 958 | pixel.red+=(*k)*kernel_pixels->red; |
| 959 | pixel.green+=(*k)*kernel_pixels->green; |
| 960 | pixel.blue+=(*k)*kernel_pixels->blue; |
| 961 | k++; |
| 962 | kernel_pixels++; |
| 963 | } |
| 964 | if ((channel & RedChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 965 | SetRedPixelComponent(q,ClampRedPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 966 | if ((channel & GreenChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 967 | SetGreenPixelComponent(q,ClampGreenPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 968 | if ((channel & BlueChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 969 | SetBluePixelComponent(q,ClampBluePixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 970 | if ((channel & OpacityChannel) != 0) |
| 971 | { |
| 972 | k=kernel; |
| 973 | kernel_pixels=p; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 974 | for (i=0; i < (ssize_t) width; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 975 | { |
| 976 | pixel.opacity+=(*k)*kernel_pixels->opacity; |
| 977 | k++; |
| 978 | kernel_pixels++; |
| 979 | } |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 980 | SetOpacityPixelComponent(q,ClampOpacityPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 981 | } |
| 982 | if (((channel & IndexChannel) != 0) && |
| 983 | (image->colorspace == CMYKColorspace)) |
| 984 | { |
| 985 | register const IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 986 | *restrict kernel_indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 987 | |
| 988 | k=kernel; |
| 989 | kernel_indexes=indexes; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 990 | for (i=0; i < (ssize_t) width; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 991 | { |
| 992 | pixel.index+=(*k)*(*kernel_indexes); |
| 993 | k++; |
| 994 | kernel_indexes++; |
| 995 | } |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 996 | blur_indexes[x]=ClampToQuantum(pixel.index); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 997 | } |
| 998 | } |
| 999 | else |
| 1000 | { |
| 1001 | MagickRealType |
| 1002 | alpha, |
| 1003 | gamma; |
| 1004 | |
| 1005 | gamma=0.0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1006 | for (i=0; i < (ssize_t) width; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1007 | { |
cristy | 46f0820 | 2010-01-10 04:04:21 +0000 | [diff] [blame] | 1008 | alpha=(MagickRealType) (QuantumScale* |
| 1009 | GetAlphaPixelComponent(kernel_pixels)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1010 | pixel.red+=(*k)*alpha*kernel_pixels->red; |
| 1011 | pixel.green+=(*k)*alpha*kernel_pixels->green; |
| 1012 | pixel.blue+=(*k)*alpha*kernel_pixels->blue; |
| 1013 | gamma+=(*k)*alpha; |
| 1014 | k++; |
| 1015 | kernel_pixels++; |
| 1016 | } |
| 1017 | gamma=1.0/(fabs((double) gamma) <= MagickEpsilon ? 1.0 : gamma); |
| 1018 | if ((channel & RedChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1019 | q->red=ClampToQuantum(gamma*GetRedPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1020 | if ((channel & GreenChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1021 | q->green=ClampToQuantum(gamma*GetGreenPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1022 | if ((channel & BlueChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1023 | q->blue=ClampToQuantum(gamma*GetBluePixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1024 | if ((channel & OpacityChannel) != 0) |
| 1025 | { |
| 1026 | k=kernel; |
| 1027 | kernel_pixels=p; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1028 | for (i=0; i < (ssize_t) width; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1029 | { |
| 1030 | pixel.opacity+=(*k)*kernel_pixels->opacity; |
| 1031 | k++; |
| 1032 | kernel_pixels++; |
| 1033 | } |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1034 | SetOpacityPixelComponent(q,ClampOpacityPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1035 | } |
| 1036 | if (((channel & IndexChannel) != 0) && |
| 1037 | (image->colorspace == CMYKColorspace)) |
| 1038 | { |
| 1039 | register const IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 1040 | *restrict kernel_indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1041 | |
| 1042 | k=kernel; |
| 1043 | kernel_pixels=p; |
| 1044 | kernel_indexes=indexes; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1045 | for (i=0; i < (ssize_t) width; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1046 | { |
cristy | 46f0820 | 2010-01-10 04:04:21 +0000 | [diff] [blame] | 1047 | alpha=(MagickRealType) (QuantumScale* |
| 1048 | GetAlphaPixelComponent(kernel_pixels)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1049 | pixel.index+=(*k)*alpha*(*kernel_indexes); |
| 1050 | k++; |
| 1051 | kernel_pixels++; |
| 1052 | kernel_indexes++; |
| 1053 | } |
cristy | 46f0820 | 2010-01-10 04:04:21 +0000 | [diff] [blame] | 1054 | blur_indexes[x]=ClampToQuantum(gamma* |
| 1055 | GetIndexPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1056 | } |
| 1057 | } |
| 1058 | p++; |
| 1059 | q++; |
| 1060 | } |
| 1061 | if (SyncCacheViewAuthenticPixels(blur_view,exception) == MagickFalse) |
| 1062 | status=MagickFalse; |
| 1063 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 1064 | { |
| 1065 | MagickBooleanType |
| 1066 | proceed; |
| 1067 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 1068 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1069 | #pragma omp critical (MagickCore_BlurImageChannel) |
| 1070 | #endif |
| 1071 | proceed=SetImageProgress(image,BlurImageTag,progress++,blur_image->rows+ |
| 1072 | blur_image->columns); |
| 1073 | if (proceed == MagickFalse) |
| 1074 | status=MagickFalse; |
| 1075 | } |
| 1076 | } |
| 1077 | blur_view=DestroyCacheView(blur_view); |
| 1078 | image_view=DestroyCacheView(image_view); |
| 1079 | /* |
| 1080 | Blur columns. |
| 1081 | */ |
| 1082 | image_view=AcquireCacheView(blur_image); |
| 1083 | blur_view=AcquireCacheView(blur_image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 1084 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 1085 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1086 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1087 | for (x=0; x < (ssize_t) blur_image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1088 | { |
| 1089 | register const IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 1090 | *restrict indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1091 | |
| 1092 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 1093 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1094 | |
| 1095 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 1096 | *restrict blur_indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1097 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1098 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1099 | y; |
| 1100 | |
| 1101 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 1102 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1103 | |
| 1104 | if (status == MagickFalse) |
| 1105 | continue; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1106 | p=GetCacheViewVirtualPixels(image_view,x,-((ssize_t) width/2L),1,image->rows+ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1107 | width,exception); |
| 1108 | q=GetCacheViewAuthenticPixels(blur_view,x,0,1,blur_image->rows,exception); |
| 1109 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 1110 | { |
| 1111 | status=MagickFalse; |
| 1112 | continue; |
| 1113 | } |
| 1114 | indexes=GetCacheViewVirtualIndexQueue(image_view); |
| 1115 | blur_indexes=GetCacheViewAuthenticIndexQueue(blur_view); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1116 | for (y=0; y < (ssize_t) blur_image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1117 | { |
| 1118 | MagickPixelPacket |
| 1119 | pixel; |
| 1120 | |
| 1121 | register const double |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 1122 | *restrict k; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1123 | |
| 1124 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 1125 | *restrict kernel_pixels; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1126 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1127 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1128 | i; |
| 1129 | |
cristy | ddd8220 | 2009-11-03 20:14:50 +0000 | [diff] [blame] | 1130 | pixel=bias; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1131 | k=kernel; |
| 1132 | kernel_pixels=p; |
| 1133 | if (((channel & OpacityChannel) == 0) || (image->matte == MagickFalse)) |
| 1134 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1135 | for (i=0; i < (ssize_t) width; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1136 | { |
| 1137 | pixel.red+=(*k)*kernel_pixels->red; |
| 1138 | pixel.green+=(*k)*kernel_pixels->green; |
| 1139 | pixel.blue+=(*k)*kernel_pixels->blue; |
| 1140 | k++; |
| 1141 | kernel_pixels++; |
| 1142 | } |
| 1143 | if ((channel & RedChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1144 | SetRedPixelComponent(q,ClampRedPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1145 | if ((channel & GreenChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1146 | SetGreenPixelComponent(q,ClampGreenPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1147 | if ((channel & BlueChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1148 | SetBluePixelComponent(q,ClampBluePixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1149 | if ((channel & OpacityChannel) != 0) |
| 1150 | { |
| 1151 | k=kernel; |
| 1152 | kernel_pixels=p; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1153 | for (i=0; i < (ssize_t) width; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1154 | { |
| 1155 | pixel.opacity+=(*k)*kernel_pixels->opacity; |
| 1156 | k++; |
| 1157 | kernel_pixels++; |
| 1158 | } |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1159 | SetOpacityPixelComponent(q,ClampOpacityPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1160 | } |
| 1161 | if (((channel & IndexChannel) != 0) && |
| 1162 | (image->colorspace == CMYKColorspace)) |
| 1163 | { |
| 1164 | register const IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 1165 | *restrict kernel_indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1166 | |
| 1167 | k=kernel; |
| 1168 | kernel_indexes=indexes; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1169 | for (i=0; i < (ssize_t) width; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1170 | { |
| 1171 | pixel.index+=(*k)*(*kernel_indexes); |
| 1172 | k++; |
| 1173 | kernel_indexes++; |
| 1174 | } |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1175 | blur_indexes[y]=ClampToQuantum(pixel.index); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1176 | } |
| 1177 | } |
| 1178 | else |
| 1179 | { |
| 1180 | MagickRealType |
| 1181 | alpha, |
| 1182 | gamma; |
| 1183 | |
| 1184 | gamma=0.0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1185 | for (i=0; i < (ssize_t) width; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1186 | { |
cristy | 46f0820 | 2010-01-10 04:04:21 +0000 | [diff] [blame] | 1187 | alpha=(MagickRealType) (QuantumScale* |
| 1188 | GetAlphaPixelComponent(kernel_pixels)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1189 | pixel.red+=(*k)*alpha*kernel_pixels->red; |
| 1190 | pixel.green+=(*k)*alpha*kernel_pixels->green; |
| 1191 | pixel.blue+=(*k)*alpha*kernel_pixels->blue; |
| 1192 | gamma+=(*k)*alpha; |
| 1193 | k++; |
| 1194 | kernel_pixels++; |
| 1195 | } |
| 1196 | gamma=1.0/(fabs((double) gamma) <= MagickEpsilon ? 1.0 : gamma); |
| 1197 | if ((channel & RedChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1198 | q->red=ClampToQuantum(gamma*GetRedPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1199 | if ((channel & GreenChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1200 | q->green=ClampToQuantum(gamma*GetGreenPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1201 | if ((channel & BlueChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1202 | q->blue=ClampToQuantum(gamma*GetBluePixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1203 | if ((channel & OpacityChannel) != 0) |
| 1204 | { |
| 1205 | k=kernel; |
| 1206 | kernel_pixels=p; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1207 | for (i=0; i < (ssize_t) width; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1208 | { |
| 1209 | pixel.opacity+=(*k)*kernel_pixels->opacity; |
| 1210 | k++; |
| 1211 | kernel_pixels++; |
| 1212 | } |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1213 | SetOpacityPixelComponent(q,ClampOpacityPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1214 | } |
| 1215 | if (((channel & IndexChannel) != 0) && |
| 1216 | (image->colorspace == CMYKColorspace)) |
| 1217 | { |
| 1218 | register const IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 1219 | *restrict kernel_indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1220 | |
| 1221 | k=kernel; |
| 1222 | kernel_pixels=p; |
| 1223 | kernel_indexes=indexes; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1224 | for (i=0; i < (ssize_t) width; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1225 | { |
cristy | 46f0820 | 2010-01-10 04:04:21 +0000 | [diff] [blame] | 1226 | alpha=(MagickRealType) (QuantumScale* |
| 1227 | GetAlphaPixelComponent(kernel_pixels)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1228 | pixel.index+=(*k)*alpha*(*kernel_indexes); |
| 1229 | k++; |
| 1230 | kernel_pixels++; |
| 1231 | kernel_indexes++; |
| 1232 | } |
cristy | 46f0820 | 2010-01-10 04:04:21 +0000 | [diff] [blame] | 1233 | blur_indexes[y]=ClampToQuantum(gamma* |
| 1234 | GetIndexPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1235 | } |
| 1236 | } |
| 1237 | p++; |
| 1238 | q++; |
| 1239 | } |
| 1240 | if (SyncCacheViewAuthenticPixels(blur_view,exception) == MagickFalse) |
| 1241 | status=MagickFalse; |
| 1242 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 1243 | { |
| 1244 | MagickBooleanType |
| 1245 | proceed; |
| 1246 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 1247 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1248 | #pragma omp critical (MagickCore_BlurImageChannel) |
| 1249 | #endif |
| 1250 | proceed=SetImageProgress(image,BlurImageTag,progress++,blur_image->rows+ |
| 1251 | blur_image->columns); |
| 1252 | if (proceed == MagickFalse) |
| 1253 | status=MagickFalse; |
| 1254 | } |
| 1255 | } |
| 1256 | blur_view=DestroyCacheView(blur_view); |
| 1257 | image_view=DestroyCacheView(image_view); |
| 1258 | kernel=(double *) RelinquishMagickMemory(kernel); |
| 1259 | if (status == MagickFalse) |
| 1260 | blur_image=DestroyImage(blur_image); |
| 1261 | blur_image->type=image->type; |
| 1262 | return(blur_image); |
| 1263 | } |
| 1264 | |
| 1265 | /* |
| 1266 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1267 | % % |
| 1268 | % % |
| 1269 | % % |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1270 | % C o n v o l v e I m a g e % |
| 1271 | % % |
| 1272 | % % |
| 1273 | % % |
| 1274 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1275 | % |
| 1276 | % ConvolveImage() applies a custom convolution kernel to the image. |
| 1277 | % |
| 1278 | % The format of the ConvolveImage method is: |
| 1279 | % |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1280 | % Image *ConvolveImage(const Image *image,const size_t order, |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1281 | % const double *kernel,ExceptionInfo *exception) |
| 1282 | % Image *ConvolveImageChannel(const Image *image,const ChannelType channel, |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1283 | % const size_t order,const double *kernel, |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1284 | % ExceptionInfo *exception) |
| 1285 | % |
| 1286 | % A description of each parameter follows: |
| 1287 | % |
| 1288 | % o image: the image. |
| 1289 | % |
| 1290 | % o channel: the channel type. |
| 1291 | % |
| 1292 | % o order: the number of columns and rows in the filter kernel. |
| 1293 | % |
| 1294 | % o kernel: An array of double representing the convolution kernel. |
| 1295 | % |
| 1296 | % o exception: return any errors or warnings in this structure. |
| 1297 | % |
| 1298 | */ |
| 1299 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1300 | MagickExport Image *ConvolveImage(const Image *image,const size_t order, |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1301 | const double *kernel,ExceptionInfo *exception) |
| 1302 | { |
| 1303 | Image |
| 1304 | *convolve_image; |
| 1305 | |
| 1306 | convolve_image=ConvolveImageChannel(image,DefaultChannels,order,kernel, |
| 1307 | exception); |
| 1308 | return(convolve_image); |
| 1309 | } |
| 1310 | |
| 1311 | MagickExport Image *ConvolveImageChannel(const Image *image, |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1312 | const ChannelType channel,const size_t order,const double *kernel, |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1313 | ExceptionInfo *exception) |
| 1314 | { |
| 1315 | #define ConvolveImageTag "Convolve/Image" |
| 1316 | |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 1317 | CacheView |
| 1318 | *convolve_view, |
| 1319 | *image_view; |
| 1320 | |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1321 | double |
| 1322 | *normal_kernel; |
| 1323 | |
| 1324 | Image |
| 1325 | *convolve_image; |
| 1326 | |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1327 | MagickBooleanType |
| 1328 | status; |
| 1329 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1330 | MagickOffsetType |
| 1331 | progress; |
| 1332 | |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1333 | MagickPixelPacket |
| 1334 | bias; |
| 1335 | |
| 1336 | MagickRealType |
| 1337 | gamma; |
| 1338 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1339 | register ssize_t |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1340 | i; |
| 1341 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1342 | size_t |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1343 | width; |
| 1344 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1345 | ssize_t |
| 1346 | y; |
| 1347 | |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1348 | /* |
| 1349 | Initialize convolve image attributes. |
| 1350 | */ |
| 1351 | assert(image != (Image *) NULL); |
| 1352 | assert(image->signature == MagickSignature); |
| 1353 | if (image->debug != MagickFalse) |
| 1354 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 1355 | assert(exception != (ExceptionInfo *) NULL); |
| 1356 | assert(exception->signature == MagickSignature); |
| 1357 | width=order; |
| 1358 | if ((width % 2) == 0) |
| 1359 | ThrowImageException(OptionError,"KernelWidthMustBeAnOddNumber"); |
| 1360 | convolve_image=CloneImage(image,0,0,MagickTrue,exception); |
| 1361 | if (convolve_image == (Image *) NULL) |
| 1362 | return((Image *) NULL); |
| 1363 | if (SetImageStorageClass(convolve_image,DirectClass) == MagickFalse) |
| 1364 | { |
| 1365 | InheritException(exception,&convolve_image->exception); |
| 1366 | convolve_image=DestroyImage(convolve_image); |
| 1367 | return((Image *) NULL); |
| 1368 | } |
| 1369 | if (image->debug != MagickFalse) |
| 1370 | { |
| 1371 | char |
| 1372 | format[MaxTextExtent], |
| 1373 | *message; |
| 1374 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1375 | ssize_t |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1376 | u, |
| 1377 | v; |
| 1378 | |
| 1379 | register const double |
| 1380 | *k; |
| 1381 | |
| 1382 | (void) LogMagickEvent(TransformEvent,GetMagickModule(), |
| 1383 | " ConvolveImage with %ldx%ld kernel:",width,width); |
| 1384 | message=AcquireString(""); |
| 1385 | k=kernel; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1386 | for (v=0; v < (ssize_t) width; v++) |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1387 | { |
| 1388 | *message='\0'; |
| 1389 | (void) FormatMagickString(format,MaxTextExtent,"%ld: ",v); |
| 1390 | (void) ConcatenateString(&message,format); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1391 | for (u=0; u < (ssize_t) width; u++) |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1392 | { |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 1393 | (void) FormatMagickString(format,MaxTextExtent,"%g ",*k++); |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1394 | (void) ConcatenateString(&message,format); |
| 1395 | } |
| 1396 | (void) LogMagickEvent(TransformEvent,GetMagickModule(),"%s",message); |
| 1397 | } |
| 1398 | message=DestroyString(message); |
| 1399 | } |
| 1400 | /* |
| 1401 | Normalize kernel. |
| 1402 | */ |
| 1403 | normal_kernel=(double *) AcquireQuantumMemory(width*width, |
| 1404 | sizeof(*normal_kernel)); |
| 1405 | if (normal_kernel == (double *) NULL) |
| 1406 | { |
| 1407 | convolve_image=DestroyImage(convolve_image); |
| 1408 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 1409 | } |
| 1410 | gamma=0.0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1411 | for (i=0; i < (ssize_t) (width*width); i++) |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1412 | gamma+=kernel[i]; |
| 1413 | gamma=1.0/(fabs((double) gamma) <= MagickEpsilon ? 1.0 : gamma); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1414 | for (i=0; i < (ssize_t) (width*width); i++) |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1415 | normal_kernel[i]=gamma*kernel[i]; |
| 1416 | /* |
| 1417 | Convolve image. |
| 1418 | */ |
| 1419 | status=MagickTrue; |
| 1420 | progress=0; |
| 1421 | GetMagickPixelPacket(image,&bias); |
| 1422 | SetMagickPixelPacketBias(image,&bias); |
| 1423 | image_view=AcquireCacheView(image); |
| 1424 | convolve_view=AcquireCacheView(convolve_image); |
| 1425 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 1426 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
| 1427 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1428 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1429 | { |
| 1430 | MagickBooleanType |
| 1431 | sync; |
| 1432 | |
| 1433 | register const IndexPacket |
| 1434 | *restrict indexes; |
| 1435 | |
| 1436 | register const PixelPacket |
| 1437 | *restrict p; |
| 1438 | |
| 1439 | register IndexPacket |
| 1440 | *restrict convolve_indexes; |
| 1441 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1442 | register ssize_t |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1443 | x; |
| 1444 | |
| 1445 | register PixelPacket |
| 1446 | *restrict q; |
| 1447 | |
| 1448 | if (status == MagickFalse) |
| 1449 | continue; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1450 | p=GetCacheViewVirtualPixels(image_view,-((ssize_t) width/2L),y-(ssize_t) (width/ |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1451 | 2L),image->columns+width,width,exception); |
| 1452 | q=GetCacheViewAuthenticPixels(convolve_view,0,y,convolve_image->columns,1, |
| 1453 | exception); |
| 1454 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 1455 | { |
| 1456 | status=MagickFalse; |
| 1457 | continue; |
| 1458 | } |
| 1459 | indexes=GetCacheViewVirtualIndexQueue(image_view); |
| 1460 | convolve_indexes=GetCacheViewAuthenticIndexQueue(convolve_view); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1461 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1462 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1463 | ssize_t |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1464 | v; |
| 1465 | |
| 1466 | MagickPixelPacket |
| 1467 | pixel; |
| 1468 | |
| 1469 | register const double |
| 1470 | *restrict k; |
| 1471 | |
| 1472 | register const PixelPacket |
| 1473 | *restrict kernel_pixels; |
| 1474 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1475 | register ssize_t |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1476 | u; |
| 1477 | |
| 1478 | pixel=bias; |
| 1479 | k=normal_kernel; |
| 1480 | kernel_pixels=p; |
| 1481 | if (((channel & OpacityChannel) == 0) || (image->matte == MagickFalse)) |
| 1482 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1483 | for (v=0; v < (ssize_t) width; v++) |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1484 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1485 | for (u=0; u < (ssize_t) width; u++) |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1486 | { |
| 1487 | pixel.red+=(*k)*kernel_pixels[u].red; |
| 1488 | pixel.green+=(*k)*kernel_pixels[u].green; |
| 1489 | pixel.blue+=(*k)*kernel_pixels[u].blue; |
| 1490 | k++; |
| 1491 | } |
| 1492 | kernel_pixels+=image->columns+width; |
| 1493 | } |
| 1494 | if ((channel & RedChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1495 | SetRedPixelComponent(q,ClampRedPixelComponent(&pixel)); |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1496 | if ((channel & GreenChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1497 | SetGreenPixelComponent(q,ClampGreenPixelComponent(&pixel)); |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1498 | if ((channel & BlueChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1499 | SetBluePixelComponent(q,ClampBluePixelComponent(&pixel)); |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1500 | if ((channel & OpacityChannel) != 0) |
| 1501 | { |
| 1502 | k=normal_kernel; |
| 1503 | kernel_pixels=p; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1504 | for (v=0; v < (ssize_t) width; v++) |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1505 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1506 | for (u=0; u < (ssize_t) width; u++) |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1507 | { |
| 1508 | pixel.opacity+=(*k)*kernel_pixels[u].opacity; |
| 1509 | k++; |
| 1510 | } |
| 1511 | kernel_pixels+=image->columns+width; |
| 1512 | } |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1513 | SetOpacityPixelComponent(q,ClampOpacityPixelComponent(&pixel)); |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1514 | } |
| 1515 | if (((channel & IndexChannel) != 0) && |
| 1516 | (image->colorspace == CMYKColorspace)) |
| 1517 | { |
| 1518 | register const IndexPacket |
| 1519 | *restrict kernel_indexes; |
| 1520 | |
| 1521 | k=normal_kernel; |
| 1522 | kernel_indexes=indexes; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1523 | for (v=0; v < (ssize_t) width; v++) |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1524 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1525 | for (u=0; u < (ssize_t) width; u++) |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1526 | { |
| 1527 | pixel.index+=(*k)*kernel_indexes[u]; |
| 1528 | k++; |
| 1529 | } |
| 1530 | kernel_indexes+=image->columns+width; |
| 1531 | } |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1532 | convolve_indexes[x]=ClampToQuantum(pixel.index); |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1533 | } |
| 1534 | } |
| 1535 | else |
| 1536 | { |
| 1537 | MagickRealType |
| 1538 | alpha, |
| 1539 | gamma; |
| 1540 | |
| 1541 | gamma=0.0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1542 | for (v=0; v < (ssize_t) width; v++) |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1543 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1544 | for (u=0; u < (ssize_t) width; u++) |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1545 | { |
| 1546 | alpha=(MagickRealType) (QuantumScale*(QuantumRange- |
| 1547 | kernel_pixels[u].opacity)); |
| 1548 | pixel.red+=(*k)*alpha*kernel_pixels[u].red; |
| 1549 | pixel.green+=(*k)*alpha*kernel_pixels[u].green; |
| 1550 | pixel.blue+=(*k)*alpha*kernel_pixels[u].blue; |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1551 | gamma+=(*k)*alpha; |
| 1552 | k++; |
| 1553 | } |
| 1554 | kernel_pixels+=image->columns+width; |
| 1555 | } |
| 1556 | gamma=1.0/(fabs((double) gamma) <= MagickEpsilon ? 1.0 : gamma); |
| 1557 | if ((channel & RedChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1558 | q->red=ClampToQuantum(gamma*GetRedPixelComponent(&pixel)); |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1559 | if ((channel & GreenChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1560 | q->green=ClampToQuantum(gamma*GetGreenPixelComponent(&pixel)); |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1561 | if ((channel & BlueChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1562 | q->blue=ClampToQuantum(gamma*GetBluePixelComponent(&pixel)); |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1563 | if ((channel & OpacityChannel) != 0) |
| 1564 | { |
| 1565 | k=normal_kernel; |
| 1566 | kernel_pixels=p; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1567 | for (v=0; v < (ssize_t) width; v++) |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1568 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1569 | for (u=0; u < (ssize_t) width; u++) |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1570 | { |
| 1571 | pixel.opacity+=(*k)*kernel_pixels[u].opacity; |
| 1572 | k++; |
| 1573 | } |
| 1574 | kernel_pixels+=image->columns+width; |
| 1575 | } |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1576 | SetOpacityPixelComponent(q,ClampOpacityPixelComponent(&pixel)); |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1577 | } |
| 1578 | if (((channel & IndexChannel) != 0) && |
| 1579 | (image->colorspace == CMYKColorspace)) |
| 1580 | { |
| 1581 | register const IndexPacket |
| 1582 | *restrict kernel_indexes; |
| 1583 | |
| 1584 | k=normal_kernel; |
| 1585 | kernel_pixels=p; |
| 1586 | kernel_indexes=indexes; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1587 | for (v=0; v < (ssize_t) width; v++) |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1588 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1589 | for (u=0; u < (ssize_t) width; u++) |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1590 | { |
| 1591 | alpha=(MagickRealType) (QuantumScale*(QuantumRange- |
| 1592 | kernel_pixels[u].opacity)); |
| 1593 | pixel.index+=(*k)*alpha*kernel_indexes[u]; |
| 1594 | k++; |
| 1595 | } |
| 1596 | kernel_pixels+=image->columns+width; |
| 1597 | kernel_indexes+=image->columns+width; |
| 1598 | } |
cristy | 24b06da | 2010-01-09 23:05:56 +0000 | [diff] [blame] | 1599 | convolve_indexes[x]=ClampToQuantum(gamma* |
| 1600 | GetIndexPixelComponent(&pixel)); |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 1601 | } |
| 1602 | } |
| 1603 | p++; |
| 1604 | q++; |
| 1605 | } |
| 1606 | sync=SyncCacheViewAuthenticPixels(convolve_view,exception); |
| 1607 | if (sync == MagickFalse) |
| 1608 | status=MagickFalse; |
| 1609 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 1610 | { |
| 1611 | MagickBooleanType |
| 1612 | proceed; |
| 1613 | |
| 1614 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 1615 | #pragma omp critical (MagickCore_ConvolveImageChannel) |
| 1616 | #endif |
| 1617 | proceed=SetImageProgress(image,ConvolveImageTag,progress++,image->rows); |
| 1618 | if (proceed == MagickFalse) |
| 1619 | status=MagickFalse; |
| 1620 | } |
| 1621 | } |
| 1622 | convolve_image->type=image->type; |
| 1623 | convolve_view=DestroyCacheView(convolve_view); |
| 1624 | image_view=DestroyCacheView(image_view); |
| 1625 | normal_kernel=(double *) RelinquishMagickMemory(normal_kernel); |
| 1626 | if (status == MagickFalse) |
| 1627 | convolve_image=DestroyImage(convolve_image); |
| 1628 | return(convolve_image); |
| 1629 | } |
| 1630 | |
| 1631 | /* |
| 1632 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1633 | % % |
| 1634 | % % |
| 1635 | % % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1636 | % D e s p e c k l e I m a g e % |
| 1637 | % % |
| 1638 | % % |
| 1639 | % % |
| 1640 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1641 | % |
| 1642 | % DespeckleImage() reduces the speckle noise in an image while perserving the |
| 1643 | % edges of the original image. |
| 1644 | % |
| 1645 | % The format of the DespeckleImage method is: |
| 1646 | % |
| 1647 | % Image *DespeckleImage(const Image *image,ExceptionInfo *exception) |
| 1648 | % |
| 1649 | % A description of each parameter follows: |
| 1650 | % |
| 1651 | % o image: the image. |
| 1652 | % |
| 1653 | % o exception: return any errors or warnings in this structure. |
| 1654 | % |
| 1655 | */ |
| 1656 | |
| 1657 | static Quantum **DestroyPixelThreadSet(Quantum **pixels) |
| 1658 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1659 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1660 | i; |
| 1661 | |
| 1662 | assert(pixels != (Quantum **) NULL); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1663 | for (i=0; i < (ssize_t) GetOpenMPMaximumThreads(); i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1664 | if (pixels[i] != (Quantum *) NULL) |
| 1665 | pixels[i]=(Quantum *) RelinquishMagickMemory(pixels[i]); |
| 1666 | pixels=(Quantum **) RelinquishAlignedMemory(pixels); |
| 1667 | return(pixels); |
| 1668 | } |
| 1669 | |
| 1670 | static Quantum **AcquirePixelThreadSet(const size_t count) |
| 1671 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1672 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1673 | i; |
| 1674 | |
| 1675 | Quantum |
| 1676 | **pixels; |
| 1677 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1678 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1679 | number_threads; |
| 1680 | |
| 1681 | number_threads=GetOpenMPMaximumThreads(); |
| 1682 | pixels=(Quantum **) AcquireAlignedMemory(number_threads,sizeof(*pixels)); |
| 1683 | if (pixels == (Quantum **) NULL) |
| 1684 | return((Quantum **) NULL); |
| 1685 | (void) ResetMagickMemory(pixels,0,number_threads*sizeof(*pixels)); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1686 | for (i=0; i < (ssize_t) number_threads; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1687 | { |
| 1688 | pixels[i]=(Quantum *) AcquireQuantumMemory(count,sizeof(**pixels)); |
| 1689 | if (pixels[i] == (Quantum *) NULL) |
| 1690 | return(DestroyPixelThreadSet(pixels)); |
| 1691 | } |
| 1692 | return(pixels); |
| 1693 | } |
| 1694 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1695 | static void Hull(const ssize_t x_offset,const ssize_t y_offset, |
| 1696 | const size_t columns,const size_t rows,Quantum *f,Quantum *g, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1697 | const int polarity) |
| 1698 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1699 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1700 | y; |
| 1701 | |
| 1702 | MagickRealType |
| 1703 | v; |
| 1704 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1705 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1706 | x; |
| 1707 | |
| 1708 | register Quantum |
| 1709 | *p, |
| 1710 | *q, |
| 1711 | *r, |
| 1712 | *s; |
| 1713 | |
| 1714 | assert(f != (Quantum *) NULL); |
| 1715 | assert(g != (Quantum *) NULL); |
| 1716 | p=f+(columns+2); |
| 1717 | q=g+(columns+2); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1718 | r=p+(y_offset*((ssize_t) columns+2)+x_offset); |
| 1719 | for (y=0; y < (ssize_t) rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1720 | { |
| 1721 | p++; |
| 1722 | q++; |
| 1723 | r++; |
| 1724 | if (polarity > 0) |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1725 | for (x=(ssize_t) columns; x != 0; x--) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1726 | { |
| 1727 | v=(MagickRealType) (*p); |
| 1728 | if ((MagickRealType) *r >= (v+(MagickRealType) ScaleCharToQuantum(2))) |
| 1729 | v+=ScaleCharToQuantum(1); |
| 1730 | *q=(Quantum) v; |
| 1731 | p++; |
| 1732 | q++; |
| 1733 | r++; |
| 1734 | } |
| 1735 | else |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1736 | for (x=(ssize_t) columns; x != 0; x--) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1737 | { |
| 1738 | v=(MagickRealType) (*p); |
| 1739 | if ((MagickRealType) *r <= (v-(MagickRealType) ScaleCharToQuantum(2))) |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1740 | v-=(ssize_t) ScaleCharToQuantum(1); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1741 | *q=(Quantum) v; |
| 1742 | p++; |
| 1743 | q++; |
| 1744 | r++; |
| 1745 | } |
| 1746 | p++; |
| 1747 | q++; |
| 1748 | r++; |
| 1749 | } |
| 1750 | p=f+(columns+2); |
| 1751 | q=g+(columns+2); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1752 | r=q+(y_offset*((ssize_t) columns+2)+x_offset); |
| 1753 | s=q-(y_offset*((ssize_t) columns+2)+x_offset); |
| 1754 | for (y=0; y < (ssize_t) rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1755 | { |
| 1756 | p++; |
| 1757 | q++; |
| 1758 | r++; |
| 1759 | s++; |
| 1760 | if (polarity > 0) |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1761 | for (x=(ssize_t) columns; x != 0; x--) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1762 | { |
| 1763 | v=(MagickRealType) (*q); |
| 1764 | if (((MagickRealType) *s >= |
| 1765 | (v+(MagickRealType) ScaleCharToQuantum(2))) && |
| 1766 | ((MagickRealType) *r > v)) |
| 1767 | v+=ScaleCharToQuantum(1); |
| 1768 | *p=(Quantum) v; |
| 1769 | p++; |
| 1770 | q++; |
| 1771 | r++; |
| 1772 | s++; |
| 1773 | } |
| 1774 | else |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1775 | for (x=(ssize_t) columns; x != 0; x--) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1776 | { |
| 1777 | v=(MagickRealType) (*q); |
| 1778 | if (((MagickRealType) *s <= |
| 1779 | (v-(MagickRealType) ScaleCharToQuantum(2))) && |
| 1780 | ((MagickRealType) *r < v)) |
| 1781 | v-=(MagickRealType) ScaleCharToQuantum(1); |
| 1782 | *p=(Quantum) v; |
| 1783 | p++; |
| 1784 | q++; |
| 1785 | r++; |
| 1786 | s++; |
| 1787 | } |
| 1788 | p++; |
| 1789 | q++; |
| 1790 | r++; |
| 1791 | s++; |
| 1792 | } |
| 1793 | } |
| 1794 | |
| 1795 | MagickExport Image *DespeckleImage(const Image *image,ExceptionInfo *exception) |
| 1796 | { |
| 1797 | #define DespeckleImageTag "Despeckle/Image" |
| 1798 | |
cristy | 2407fc2 | 2009-09-11 00:55:25 +0000 | [diff] [blame] | 1799 | CacheView |
| 1800 | *despeckle_view, |
| 1801 | *image_view; |
| 1802 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1803 | Image |
| 1804 | *despeckle_image; |
| 1805 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1806 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1807 | channel; |
| 1808 | |
| 1809 | MagickBooleanType |
| 1810 | status; |
| 1811 | |
| 1812 | Quantum |
cristy | fa11211 | 2010-01-04 17:48:07 +0000 | [diff] [blame] | 1813 | **restrict buffers, |
| 1814 | **restrict pixels; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1815 | |
| 1816 | size_t |
| 1817 | length; |
| 1818 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1819 | static const ssize_t |
cristy | 691a29e | 2009-09-11 00:44:10 +0000 | [diff] [blame] | 1820 | X[4] = {0, 1, 1,-1}, |
| 1821 | Y[4] = {1, 0, 1, 1}; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1822 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1823 | /* |
| 1824 | Allocate despeckled image. |
| 1825 | */ |
| 1826 | assert(image != (const Image *) NULL); |
| 1827 | assert(image->signature == MagickSignature); |
| 1828 | if (image->debug != MagickFalse) |
| 1829 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 1830 | assert(exception != (ExceptionInfo *) NULL); |
| 1831 | assert(exception->signature == MagickSignature); |
| 1832 | despeckle_image=CloneImage(image,image->columns,image->rows,MagickTrue, |
| 1833 | exception); |
| 1834 | if (despeckle_image == (Image *) NULL) |
| 1835 | return((Image *) NULL); |
| 1836 | if (SetImageStorageClass(despeckle_image,DirectClass) == MagickFalse) |
| 1837 | { |
| 1838 | InheritException(exception,&despeckle_image->exception); |
| 1839 | despeckle_image=DestroyImage(despeckle_image); |
| 1840 | return((Image *) NULL); |
| 1841 | } |
| 1842 | /* |
| 1843 | Allocate image buffers. |
| 1844 | */ |
| 1845 | length=(size_t) ((image->columns+2)*(image->rows+2)); |
| 1846 | pixels=AcquirePixelThreadSet(length); |
| 1847 | buffers=AcquirePixelThreadSet(length); |
| 1848 | if ((pixels == (Quantum **) NULL) || (buffers == (Quantum **) NULL)) |
| 1849 | { |
| 1850 | if (buffers != (Quantum **) NULL) |
| 1851 | buffers=DestroyPixelThreadSet(buffers); |
| 1852 | if (pixels != (Quantum **) NULL) |
| 1853 | pixels=DestroyPixelThreadSet(pixels); |
| 1854 | despeckle_image=DestroyImage(despeckle_image); |
| 1855 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 1856 | } |
| 1857 | /* |
| 1858 | Reduce speckle in the image. |
| 1859 | */ |
| 1860 | status=MagickTrue; |
| 1861 | image_view=AcquireCacheView(image); |
| 1862 | despeckle_view=AcquireCacheView(despeckle_image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 1863 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 1864 | #pragma omp parallel for schedule(dynamic,4) shared(status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1865 | #endif |
| 1866 | for (channel=0; channel <= 3; channel++) |
| 1867 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1868 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1869 | j, |
| 1870 | y; |
| 1871 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1872 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1873 | i, |
cristy | 691a29e | 2009-09-11 00:44:10 +0000 | [diff] [blame] | 1874 | id, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1875 | x; |
| 1876 | |
| 1877 | register Quantum |
| 1878 | *buffer, |
| 1879 | *pixel; |
| 1880 | |
| 1881 | if (status == MagickFalse) |
| 1882 | continue; |
cristy | 691a29e | 2009-09-11 00:44:10 +0000 | [diff] [blame] | 1883 | id=GetOpenMPThreadId(); |
| 1884 | pixel=pixels[id]; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1885 | (void) ResetMagickMemory(pixel,0,length*sizeof(*pixel)); |
cristy | 691a29e | 2009-09-11 00:44:10 +0000 | [diff] [blame] | 1886 | buffer=buffers[id]; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1887 | j=(ssize_t) image->columns+2; |
| 1888 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1889 | { |
| 1890 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 1891 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1892 | |
| 1893 | p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception); |
| 1894 | if (p == (const PixelPacket *) NULL) |
| 1895 | break; |
| 1896 | j++; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1897 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1898 | { |
| 1899 | switch (channel) |
| 1900 | { |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1901 | case 0: pixel[j]=GetRedPixelComponent(p); break; |
| 1902 | case 1: pixel[j]=GetGreenPixelComponent(p); break; |
| 1903 | case 2: pixel[j]=GetBluePixelComponent(p); break; |
| 1904 | case 3: pixel[j]=GetOpacityPixelComponent(p); break; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1905 | default: break; |
| 1906 | } |
| 1907 | p++; |
| 1908 | j++; |
| 1909 | } |
| 1910 | j++; |
| 1911 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1912 | (void) ResetMagickMemory(buffer,0,length*sizeof(*buffer)); |
| 1913 | for (i=0; i < 4; i++) |
| 1914 | { |
| 1915 | Hull(X[i],Y[i],image->columns,image->rows,pixel,buffer,1); |
| 1916 | Hull(-X[i],-Y[i],image->columns,image->rows,pixel,buffer,1); |
| 1917 | Hull(-X[i],-Y[i],image->columns,image->rows,pixel,buffer,-1); |
| 1918 | Hull(X[i],Y[i],image->columns,image->rows,pixel,buffer,-1); |
| 1919 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1920 | j=(ssize_t) image->columns+2; |
| 1921 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1922 | { |
| 1923 | MagickBooleanType |
| 1924 | sync; |
| 1925 | |
| 1926 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 1927 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1928 | |
| 1929 | q=GetCacheViewAuthenticPixels(despeckle_view,0,y,despeckle_image->columns, |
| 1930 | 1,exception); |
| 1931 | if (q == (PixelPacket *) NULL) |
| 1932 | break; |
| 1933 | j++; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1934 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1935 | { |
| 1936 | switch (channel) |
| 1937 | { |
| 1938 | case 0: q->red=pixel[j]; break; |
| 1939 | case 1: q->green=pixel[j]; break; |
| 1940 | case 2: q->blue=pixel[j]; break; |
| 1941 | case 3: q->opacity=pixel[j]; break; |
| 1942 | default: break; |
| 1943 | } |
| 1944 | q++; |
| 1945 | j++; |
| 1946 | } |
| 1947 | sync=SyncCacheViewAuthenticPixels(despeckle_view,exception); |
| 1948 | if (sync == MagickFalse) |
| 1949 | { |
| 1950 | status=MagickFalse; |
| 1951 | break; |
| 1952 | } |
| 1953 | j++; |
| 1954 | } |
| 1955 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 1956 | { |
| 1957 | MagickBooleanType |
| 1958 | proceed; |
| 1959 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 1960 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1961 | #pragma omp critical (MagickCore_DespeckleImage) |
| 1962 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 1963 | proceed=SetImageProgress(image,DespeckleImageTag,(MagickOffsetType) |
| 1964 | channel,3); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1965 | if (proceed == MagickFalse) |
| 1966 | status=MagickFalse; |
| 1967 | } |
| 1968 | } |
| 1969 | despeckle_view=DestroyCacheView(despeckle_view); |
| 1970 | image_view=DestroyCacheView(image_view); |
| 1971 | buffers=DestroyPixelThreadSet(buffers); |
| 1972 | pixels=DestroyPixelThreadSet(pixels); |
| 1973 | despeckle_image->type=image->type; |
| 1974 | if (status == MagickFalse) |
| 1975 | despeckle_image=DestroyImage(despeckle_image); |
| 1976 | return(despeckle_image); |
| 1977 | } |
| 1978 | |
| 1979 | /* |
| 1980 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1981 | % % |
| 1982 | % % |
| 1983 | % % |
| 1984 | % E d g e I m a g e % |
| 1985 | % % |
| 1986 | % % |
| 1987 | % % |
| 1988 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1989 | % |
| 1990 | % EdgeImage() finds edges in an image. Radius defines the radius of the |
| 1991 | % convolution filter. Use a radius of 0 and EdgeImage() selects a suitable |
| 1992 | % radius for you. |
| 1993 | % |
| 1994 | % The format of the EdgeImage method is: |
| 1995 | % |
| 1996 | % Image *EdgeImage(const Image *image,const double radius, |
| 1997 | % ExceptionInfo *exception) |
| 1998 | % |
| 1999 | % A description of each parameter follows: |
| 2000 | % |
| 2001 | % o image: the image. |
| 2002 | % |
| 2003 | % o radius: the radius of the pixel neighborhood. |
| 2004 | % |
| 2005 | % o exception: return any errors or warnings in this structure. |
| 2006 | % |
| 2007 | */ |
| 2008 | MagickExport Image *EdgeImage(const Image *image,const double radius, |
| 2009 | ExceptionInfo *exception) |
| 2010 | { |
| 2011 | Image |
| 2012 | *edge_image; |
| 2013 | |
| 2014 | double |
| 2015 | *kernel; |
| 2016 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2017 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2018 | i; |
| 2019 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2020 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2021 | width; |
| 2022 | |
| 2023 | assert(image != (const Image *) NULL); |
| 2024 | assert(image->signature == MagickSignature); |
| 2025 | if (image->debug != MagickFalse) |
| 2026 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 2027 | assert(exception != (ExceptionInfo *) NULL); |
| 2028 | assert(exception->signature == MagickSignature); |
| 2029 | width=GetOptimalKernelWidth1D(radius,0.5); |
| 2030 | kernel=(double *) AcquireQuantumMemory((size_t) width,width*sizeof(*kernel)); |
| 2031 | if (kernel == (double *) NULL) |
| 2032 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2033 | for (i=0; i < (ssize_t) (width*width); i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2034 | kernel[i]=(-1.0); |
| 2035 | kernel[i/2]=(double) (width*width-1.0); |
| 2036 | edge_image=ConvolveImage(image,width,kernel,exception); |
| 2037 | kernel=(double *) RelinquishMagickMemory(kernel); |
| 2038 | return(edge_image); |
| 2039 | } |
| 2040 | |
| 2041 | /* |
| 2042 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 2043 | % % |
| 2044 | % % |
| 2045 | % % |
| 2046 | % E m b o s s I m a g e % |
| 2047 | % % |
| 2048 | % % |
| 2049 | % % |
| 2050 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 2051 | % |
| 2052 | % EmbossImage() returns a grayscale image with a three-dimensional effect. |
| 2053 | % We convolve the image with a Gaussian operator of the given radius and |
| 2054 | % standard deviation (sigma). For reasonable results, radius should be |
| 2055 | % larger than sigma. Use a radius of 0 and Emboss() selects a suitable |
| 2056 | % radius for you. |
| 2057 | % |
| 2058 | % The format of the EmbossImage method is: |
| 2059 | % |
| 2060 | % Image *EmbossImage(const Image *image,const double radius, |
| 2061 | % const double sigma,ExceptionInfo *exception) |
| 2062 | % |
| 2063 | % A description of each parameter follows: |
| 2064 | % |
| 2065 | % o image: the image. |
| 2066 | % |
| 2067 | % o radius: the radius of the pixel neighborhood. |
| 2068 | % |
| 2069 | % o sigma: the standard deviation of the Gaussian, in pixels. |
| 2070 | % |
| 2071 | % o exception: return any errors or warnings in this structure. |
| 2072 | % |
| 2073 | */ |
| 2074 | MagickExport Image *EmbossImage(const Image *image,const double radius, |
| 2075 | const double sigma,ExceptionInfo *exception) |
| 2076 | { |
| 2077 | double |
| 2078 | *kernel; |
| 2079 | |
| 2080 | Image |
| 2081 | *emboss_image; |
| 2082 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2083 | ssize_t |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 2084 | j, |
| 2085 | k, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2086 | u, |
| 2087 | v; |
| 2088 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2089 | register ssize_t |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 2090 | i; |
| 2091 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2092 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2093 | width; |
| 2094 | |
| 2095 | assert(image != (Image *) NULL); |
| 2096 | assert(image->signature == MagickSignature); |
| 2097 | if (image->debug != MagickFalse) |
| 2098 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 2099 | assert(exception != (ExceptionInfo *) NULL); |
| 2100 | assert(exception->signature == MagickSignature); |
| 2101 | width=GetOptimalKernelWidth2D(radius,sigma); |
| 2102 | kernel=(double *) AcquireQuantumMemory((size_t) width,width*sizeof(*kernel)); |
| 2103 | if (kernel == (double *) NULL) |
| 2104 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2105 | j=(ssize_t) width/2; |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 2106 | k=j; |
| 2107 | i=0; |
| 2108 | for (v=(-j); v <= j; v++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2109 | { |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 2110 | for (u=(-j); u <= j; u++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2111 | { |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 2112 | kernel[i]=((u < 0) || (v < 0) ? -8.0 : 8.0)* |
| 2113 | exp(-((double) u*u+v*v)/(2.0*MagickSigma*MagickSigma))/ |
| 2114 | (2.0*MagickPI*MagickSigma*MagickSigma); |
| 2115 | if (u != k) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2116 | kernel[i]=0.0; |
| 2117 | i++; |
| 2118 | } |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 2119 | k--; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2120 | } |
| 2121 | emboss_image=ConvolveImage(image,width,kernel,exception); |
| 2122 | if (emboss_image != (Image *) NULL) |
| 2123 | (void) EqualizeImage(emboss_image); |
| 2124 | kernel=(double *) RelinquishMagickMemory(kernel); |
| 2125 | return(emboss_image); |
| 2126 | } |
| 2127 | |
| 2128 | /* |
| 2129 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 2130 | % % |
| 2131 | % % |
| 2132 | % % |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2133 | % F i l t e r I m a g e % |
| 2134 | % % |
| 2135 | % % |
| 2136 | % % |
| 2137 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 2138 | % |
| 2139 | % FilterImage() applies a custom convolution kernel to the image. |
| 2140 | % |
| 2141 | % The format of the FilterImage method is: |
| 2142 | % |
cristy | 2be1538 | 2010-01-21 02:38:03 +0000 | [diff] [blame] | 2143 | % Image *FilterImage(const Image *image,const KernelInfo *kernel, |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2144 | % ExceptionInfo *exception) |
| 2145 | % Image *FilterImageChannel(const Image *image,const ChannelType channel, |
cristy | 2be1538 | 2010-01-21 02:38:03 +0000 | [diff] [blame] | 2146 | % const KernelInfo *kernel,ExceptionInfo *exception) |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2147 | % |
| 2148 | % A description of each parameter follows: |
| 2149 | % |
| 2150 | % o image: the image. |
| 2151 | % |
| 2152 | % o channel: the channel type. |
| 2153 | % |
| 2154 | % o kernel: the filtering kernel. |
| 2155 | % |
| 2156 | % o exception: return any errors or warnings in this structure. |
| 2157 | % |
| 2158 | */ |
| 2159 | |
cristy | 2be1538 | 2010-01-21 02:38:03 +0000 | [diff] [blame] | 2160 | MagickExport Image *FilterImage(const Image *image,const KernelInfo *kernel, |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2161 | ExceptionInfo *exception) |
| 2162 | { |
| 2163 | Image |
| 2164 | *filter_image; |
| 2165 | |
| 2166 | filter_image=FilterImageChannel(image,DefaultChannels,kernel,exception); |
| 2167 | return(filter_image); |
| 2168 | } |
| 2169 | |
| 2170 | MagickExport Image *FilterImageChannel(const Image *image, |
cristy | 2be1538 | 2010-01-21 02:38:03 +0000 | [diff] [blame] | 2171 | const ChannelType channel,const KernelInfo *kernel,ExceptionInfo *exception) |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2172 | { |
| 2173 | #define FilterImageTag "Filter/Image" |
| 2174 | |
| 2175 | CacheView |
| 2176 | *filter_view, |
| 2177 | *image_view; |
| 2178 | |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2179 | Image |
| 2180 | *filter_image; |
| 2181 | |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2182 | MagickBooleanType |
| 2183 | status; |
| 2184 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2185 | MagickOffsetType |
| 2186 | progress; |
| 2187 | |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2188 | MagickPixelPacket |
| 2189 | bias; |
| 2190 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2191 | ssize_t |
| 2192 | y; |
| 2193 | |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2194 | /* |
| 2195 | Initialize filter image attributes. |
| 2196 | */ |
| 2197 | assert(image != (Image *) NULL); |
| 2198 | assert(image->signature == MagickSignature); |
| 2199 | if (image->debug != MagickFalse) |
| 2200 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 2201 | assert(exception != (ExceptionInfo *) NULL); |
| 2202 | assert(exception->signature == MagickSignature); |
| 2203 | if ((kernel->width % 2) == 0) |
| 2204 | ThrowImageException(OptionError,"KernelWidthMustBeAnOddNumber"); |
| 2205 | filter_image=CloneImage(image,0,0,MagickTrue,exception); |
| 2206 | if (filter_image == (Image *) NULL) |
| 2207 | return((Image *) NULL); |
| 2208 | if (SetImageStorageClass(filter_image,DirectClass) == MagickFalse) |
| 2209 | { |
| 2210 | InheritException(exception,&filter_image->exception); |
| 2211 | filter_image=DestroyImage(filter_image); |
| 2212 | return((Image *) NULL); |
| 2213 | } |
| 2214 | if (image->debug != MagickFalse) |
| 2215 | { |
| 2216 | char |
| 2217 | format[MaxTextExtent], |
| 2218 | *message; |
| 2219 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2220 | ssize_t |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2221 | u, |
| 2222 | v; |
| 2223 | |
| 2224 | register const double |
| 2225 | *k; |
| 2226 | |
| 2227 | (void) LogMagickEvent(TransformEvent,GetMagickModule(), |
| 2228 | " FilterImage with %ldx%ld kernel:",kernel->width,kernel->height); |
| 2229 | message=AcquireString(""); |
| 2230 | k=kernel->values; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2231 | for (v=0; v < (ssize_t) kernel->height; v++) |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2232 | { |
| 2233 | *message='\0'; |
| 2234 | (void) FormatMagickString(format,MaxTextExtent,"%ld: ",v); |
| 2235 | (void) ConcatenateString(&message,format); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2236 | for (u=0; u < (ssize_t) kernel->width; u++) |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2237 | { |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 2238 | (void) FormatMagickString(format,MaxTextExtent,"%g ",*k++); |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2239 | (void) ConcatenateString(&message,format); |
| 2240 | } |
| 2241 | (void) LogMagickEvent(TransformEvent,GetMagickModule(),"%s",message); |
| 2242 | } |
| 2243 | message=DestroyString(message); |
| 2244 | } |
cristy | 36826ab | 2010-03-06 01:29:30 +0000 | [diff] [blame] | 2245 | status=AccelerateConvolveImage(image,kernel,filter_image,exception); |
cristy | d43a46b | 2010-01-21 02:13:41 +0000 | [diff] [blame] | 2246 | if (status == MagickTrue) |
| 2247 | return(filter_image); |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2248 | /* |
| 2249 | Filter image. |
| 2250 | */ |
| 2251 | status=MagickTrue; |
| 2252 | progress=0; |
| 2253 | GetMagickPixelPacket(image,&bias); |
| 2254 | SetMagickPixelPacketBias(image,&bias); |
| 2255 | image_view=AcquireCacheView(image); |
| 2256 | filter_view=AcquireCacheView(filter_image); |
| 2257 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 2258 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
| 2259 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2260 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2261 | { |
| 2262 | MagickBooleanType |
| 2263 | sync; |
| 2264 | |
| 2265 | register const IndexPacket |
| 2266 | *restrict indexes; |
| 2267 | |
| 2268 | register const PixelPacket |
| 2269 | *restrict p; |
| 2270 | |
| 2271 | register IndexPacket |
| 2272 | *restrict filter_indexes; |
| 2273 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2274 | register ssize_t |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2275 | x; |
| 2276 | |
| 2277 | register PixelPacket |
| 2278 | *restrict q; |
| 2279 | |
| 2280 | if (status == MagickFalse) |
| 2281 | continue; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2282 | p=GetCacheViewVirtualPixels(image_view,-((ssize_t) kernel->width/2L), |
| 2283 | y-(ssize_t) (kernel->height/2L),image->columns+kernel->width,kernel->height, |
cristy | 36826ab | 2010-03-06 01:29:30 +0000 | [diff] [blame] | 2284 | exception); |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2285 | q=GetCacheViewAuthenticPixels(filter_view,0,y,filter_image->columns,1, |
| 2286 | exception); |
| 2287 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 2288 | { |
| 2289 | status=MagickFalse; |
| 2290 | continue; |
| 2291 | } |
| 2292 | indexes=GetCacheViewVirtualIndexQueue(image_view); |
| 2293 | filter_indexes=GetCacheViewAuthenticIndexQueue(filter_view); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2294 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2295 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2296 | ssize_t |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2297 | v; |
| 2298 | |
| 2299 | MagickPixelPacket |
| 2300 | pixel; |
| 2301 | |
| 2302 | register const double |
| 2303 | *restrict k; |
| 2304 | |
| 2305 | register const PixelPacket |
| 2306 | *restrict kernel_pixels; |
| 2307 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2308 | register ssize_t |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2309 | u; |
| 2310 | |
| 2311 | pixel=bias; |
cristy | 36826ab | 2010-03-06 01:29:30 +0000 | [diff] [blame] | 2312 | k=kernel->values; |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2313 | kernel_pixels=p; |
| 2314 | if (((channel & OpacityChannel) == 0) || (image->matte == MagickFalse)) |
| 2315 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2316 | for (v=0; v < (ssize_t) kernel->width; v++) |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2317 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2318 | for (u=0; u < (ssize_t) kernel->height; u++) |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2319 | { |
| 2320 | pixel.red+=(*k)*kernel_pixels[u].red; |
| 2321 | pixel.green+=(*k)*kernel_pixels[u].green; |
| 2322 | pixel.blue+=(*k)*kernel_pixels[u].blue; |
| 2323 | k++; |
| 2324 | } |
cristy | 36826ab | 2010-03-06 01:29:30 +0000 | [diff] [blame] | 2325 | kernel_pixels+=image->columns+kernel->width; |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2326 | } |
| 2327 | if ((channel & RedChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 2328 | SetRedPixelComponent(q,ClampRedPixelComponent(&pixel)); |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2329 | if ((channel & GreenChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 2330 | SetGreenPixelComponent(q,ClampGreenPixelComponent(&pixel)); |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2331 | if ((channel & BlueChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 2332 | SetBluePixelComponent(q,ClampBluePixelComponent(&pixel)); |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2333 | if ((channel & OpacityChannel) != 0) |
| 2334 | { |
cristy | 36826ab | 2010-03-06 01:29:30 +0000 | [diff] [blame] | 2335 | k=kernel->values; |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2336 | kernel_pixels=p; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2337 | for (v=0; v < (ssize_t) kernel->width; v++) |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2338 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2339 | for (u=0; u < (ssize_t) kernel->height; u++) |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2340 | { |
| 2341 | pixel.opacity+=(*k)*kernel_pixels[u].opacity; |
| 2342 | k++; |
| 2343 | } |
cristy | 36826ab | 2010-03-06 01:29:30 +0000 | [diff] [blame] | 2344 | kernel_pixels+=image->columns+kernel->width; |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2345 | } |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 2346 | SetOpacityPixelComponent(q,ClampOpacityPixelComponent(&pixel)); |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2347 | } |
| 2348 | if (((channel & IndexChannel) != 0) && |
| 2349 | (image->colorspace == CMYKColorspace)) |
| 2350 | { |
| 2351 | register const IndexPacket |
| 2352 | *restrict kernel_indexes; |
| 2353 | |
cristy | 36826ab | 2010-03-06 01:29:30 +0000 | [diff] [blame] | 2354 | k=kernel->values; |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2355 | kernel_indexes=indexes; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2356 | for (v=0; v < (ssize_t) kernel->width; v++) |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2357 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2358 | for (u=0; u < (ssize_t) kernel->height; u++) |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2359 | { |
| 2360 | pixel.index+=(*k)*kernel_indexes[u]; |
| 2361 | k++; |
| 2362 | } |
cristy | 36826ab | 2010-03-06 01:29:30 +0000 | [diff] [blame] | 2363 | kernel_indexes+=image->columns+kernel->width; |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2364 | } |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 2365 | filter_indexes[x]=ClampToQuantum(pixel.index); |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2366 | } |
| 2367 | } |
| 2368 | else |
| 2369 | { |
| 2370 | MagickRealType |
| 2371 | alpha, |
| 2372 | gamma; |
| 2373 | |
| 2374 | gamma=0.0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2375 | for (v=0; v < (ssize_t) kernel->width; v++) |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2376 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2377 | for (u=0; u < (ssize_t) kernel->height; u++) |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2378 | { |
| 2379 | alpha=(MagickRealType) (QuantumScale*(QuantumRange- |
| 2380 | kernel_pixels[u].opacity)); |
| 2381 | pixel.red+=(*k)*alpha*kernel_pixels[u].red; |
| 2382 | pixel.green+=(*k)*alpha*kernel_pixels[u].green; |
| 2383 | pixel.blue+=(*k)*alpha*kernel_pixels[u].blue; |
| 2384 | gamma+=(*k)*alpha; |
| 2385 | k++; |
| 2386 | } |
cristy | 36826ab | 2010-03-06 01:29:30 +0000 | [diff] [blame] | 2387 | kernel_pixels+=image->columns+kernel->width; |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2388 | } |
| 2389 | gamma=1.0/(fabs((double) gamma) <= MagickEpsilon ? 1.0 : gamma); |
| 2390 | if ((channel & RedChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 2391 | q->red=ClampToQuantum(gamma*GetRedPixelComponent(&pixel)); |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2392 | if ((channel & GreenChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 2393 | q->green=ClampToQuantum(gamma*GetGreenPixelComponent(&pixel)); |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2394 | if ((channel & BlueChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 2395 | q->blue=ClampToQuantum(gamma*GetBluePixelComponent(&pixel)); |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2396 | if ((channel & OpacityChannel) != 0) |
| 2397 | { |
cristy | 36826ab | 2010-03-06 01:29:30 +0000 | [diff] [blame] | 2398 | k=kernel->values; |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2399 | kernel_pixels=p; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2400 | for (v=0; v < (ssize_t) kernel->width; v++) |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2401 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2402 | for (u=0; u < (ssize_t) kernel->height; u++) |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2403 | { |
| 2404 | pixel.opacity+=(*k)*kernel_pixels[u].opacity; |
| 2405 | k++; |
| 2406 | } |
cristy | 36826ab | 2010-03-06 01:29:30 +0000 | [diff] [blame] | 2407 | kernel_pixels+=image->columns+kernel->width; |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2408 | } |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 2409 | SetOpacityPixelComponent(q,ClampOpacityPixelComponent(&pixel)); |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2410 | } |
| 2411 | if (((channel & IndexChannel) != 0) && |
| 2412 | (image->colorspace == CMYKColorspace)) |
| 2413 | { |
| 2414 | register const IndexPacket |
| 2415 | *restrict kernel_indexes; |
| 2416 | |
cristy | 36826ab | 2010-03-06 01:29:30 +0000 | [diff] [blame] | 2417 | k=kernel->values; |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2418 | kernel_pixels=p; |
| 2419 | kernel_indexes=indexes; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2420 | for (v=0; v < (ssize_t) kernel->width; v++) |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2421 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2422 | for (u=0; u < (ssize_t) kernel->height; u++) |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2423 | { |
| 2424 | alpha=(MagickRealType) (QuantumScale*(QuantumRange- |
| 2425 | kernel_pixels[u].opacity)); |
| 2426 | pixel.index+=(*k)*alpha*kernel_indexes[u]; |
| 2427 | k++; |
| 2428 | } |
cristy | 36826ab | 2010-03-06 01:29:30 +0000 | [diff] [blame] | 2429 | kernel_pixels+=image->columns+kernel->width; |
| 2430 | kernel_indexes+=image->columns+kernel->width; |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2431 | } |
cristy | 2115aea | 2010-01-09 23:16:08 +0000 | [diff] [blame] | 2432 | filter_indexes[x]=ClampToQuantum(gamma* |
| 2433 | GetIndexPixelComponent(&pixel)); |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2434 | } |
| 2435 | } |
| 2436 | p++; |
| 2437 | q++; |
| 2438 | } |
| 2439 | sync=SyncCacheViewAuthenticPixels(filter_view,exception); |
| 2440 | if (sync == MagickFalse) |
| 2441 | status=MagickFalse; |
| 2442 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 2443 | { |
| 2444 | MagickBooleanType |
| 2445 | proceed; |
| 2446 | |
| 2447 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 2448 | #pragma omp critical (MagickCore_FilterImageChannel) |
| 2449 | #endif |
| 2450 | proceed=SetImageProgress(image,FilterImageTag,progress++,image->rows); |
| 2451 | if (proceed == MagickFalse) |
| 2452 | status=MagickFalse; |
| 2453 | } |
| 2454 | } |
| 2455 | filter_image->type=image->type; |
| 2456 | filter_view=DestroyCacheView(filter_view); |
| 2457 | image_view=DestroyCacheView(image_view); |
cristy | 56a9e51 | 2010-01-06 18:18:55 +0000 | [diff] [blame] | 2458 | if (status == MagickFalse) |
| 2459 | filter_image=DestroyImage(filter_image); |
| 2460 | return(filter_image); |
| 2461 | } |
| 2462 | |
| 2463 | /* |
| 2464 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 2465 | % % |
| 2466 | % % |
| 2467 | % % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2468 | % G a u s s i a n B l u r I m a g e % |
| 2469 | % % |
| 2470 | % % |
| 2471 | % % |
| 2472 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 2473 | % |
| 2474 | % GaussianBlurImage() blurs an image. We convolve the image with a |
| 2475 | % Gaussian operator of the given radius and standard deviation (sigma). |
| 2476 | % For reasonable results, the radius should be larger than sigma. Use a |
| 2477 | % radius of 0 and GaussianBlurImage() selects a suitable radius for you |
| 2478 | % |
| 2479 | % The format of the GaussianBlurImage method is: |
| 2480 | % |
| 2481 | % Image *GaussianBlurImage(const Image *image,onst double radius, |
| 2482 | % const double sigma,ExceptionInfo *exception) |
| 2483 | % Image *GaussianBlurImageChannel(const Image *image, |
| 2484 | % const ChannelType channel,const double radius,const double sigma, |
| 2485 | % ExceptionInfo *exception) |
| 2486 | % |
| 2487 | % A description of each parameter follows: |
| 2488 | % |
| 2489 | % o image: the image. |
| 2490 | % |
| 2491 | % o channel: the channel type. |
| 2492 | % |
| 2493 | % o radius: the radius of the Gaussian, in pixels, not counting the center |
| 2494 | % pixel. |
| 2495 | % |
| 2496 | % o sigma: the standard deviation of the Gaussian, in pixels. |
| 2497 | % |
| 2498 | % o exception: return any errors or warnings in this structure. |
| 2499 | % |
| 2500 | */ |
| 2501 | |
| 2502 | MagickExport Image *GaussianBlurImage(const Image *image,const double radius, |
| 2503 | const double sigma,ExceptionInfo *exception) |
| 2504 | { |
| 2505 | Image |
| 2506 | *blur_image; |
| 2507 | |
| 2508 | blur_image=GaussianBlurImageChannel(image,DefaultChannels,radius,sigma, |
| 2509 | exception); |
| 2510 | return(blur_image); |
| 2511 | } |
| 2512 | |
| 2513 | MagickExport Image *GaussianBlurImageChannel(const Image *image, |
| 2514 | const ChannelType channel,const double radius,const double sigma, |
| 2515 | ExceptionInfo *exception) |
| 2516 | { |
| 2517 | double |
| 2518 | *kernel; |
| 2519 | |
| 2520 | Image |
| 2521 | *blur_image; |
| 2522 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2523 | ssize_t |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 2524 | j, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2525 | u, |
| 2526 | v; |
| 2527 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2528 | register ssize_t |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 2529 | i; |
| 2530 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2531 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2532 | width; |
| 2533 | |
| 2534 | assert(image != (const Image *) NULL); |
| 2535 | assert(image->signature == MagickSignature); |
| 2536 | if (image->debug != MagickFalse) |
| 2537 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 2538 | assert(exception != (ExceptionInfo *) NULL); |
| 2539 | assert(exception->signature == MagickSignature); |
| 2540 | width=GetOptimalKernelWidth2D(radius,sigma); |
| 2541 | kernel=(double *) AcquireQuantumMemory((size_t) width,width*sizeof(*kernel)); |
| 2542 | if (kernel == (double *) NULL) |
| 2543 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2544 | j=(ssize_t) width/2; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2545 | i=0; |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 2546 | for (v=(-j); v <= j; v++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2547 | { |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 2548 | for (u=(-j); u <= j; u++) |
| 2549 | kernel[i++]=exp(-((double) u*u+v*v)/(2.0*MagickSigma*MagickSigma))/ |
| 2550 | (2.0*MagickPI*MagickSigma*MagickSigma); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2551 | } |
| 2552 | blur_image=ConvolveImageChannel(image,channel,width,kernel,exception); |
| 2553 | kernel=(double *) RelinquishMagickMemory(kernel); |
| 2554 | return(blur_image); |
| 2555 | } |
| 2556 | |
| 2557 | /* |
| 2558 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 2559 | % % |
| 2560 | % % |
| 2561 | % % |
| 2562 | % M e d i a n F i l t e r I m a g e % |
| 2563 | % % |
| 2564 | % % |
| 2565 | % % |
| 2566 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 2567 | % |
| 2568 | % MedianFilterImage() applies a digital filter that improves the quality |
| 2569 | % of a noisy image. Each pixel is replaced by the median in a set of |
| 2570 | % neighboring pixels as defined by radius. |
| 2571 | % |
| 2572 | % The algorithm was contributed by Mike Edmonds and implements an insertion |
| 2573 | % sort for selecting median color-channel values. For more on this algorithm |
| 2574 | % see "Skip Lists: A probabilistic Alternative to Balanced Trees" by William |
| 2575 | % Pugh in the June 1990 of Communications of the ACM. |
| 2576 | % |
| 2577 | % The format of the MedianFilterImage method is: |
| 2578 | % |
| 2579 | % Image *MedianFilterImage(const Image *image,const double radius, |
| 2580 | % ExceptionInfo *exception) |
| 2581 | % |
| 2582 | % A description of each parameter follows: |
| 2583 | % |
| 2584 | % o image: the image. |
| 2585 | % |
| 2586 | % o radius: the radius of the pixel neighborhood. |
| 2587 | % |
| 2588 | % o exception: return any errors or warnings in this structure. |
| 2589 | % |
| 2590 | */ |
| 2591 | |
| 2592 | #define MedianListChannels 5 |
| 2593 | |
| 2594 | typedef struct _MedianListNode |
| 2595 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2596 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2597 | next[9], |
| 2598 | count, |
| 2599 | signature; |
| 2600 | } MedianListNode; |
| 2601 | |
| 2602 | typedef struct _MedianSkipList |
| 2603 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2604 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2605 | level; |
| 2606 | |
| 2607 | MedianListNode |
| 2608 | *nodes; |
| 2609 | } MedianSkipList; |
| 2610 | |
| 2611 | typedef struct _MedianPixelList |
| 2612 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2613 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2614 | center, |
| 2615 | seed, |
| 2616 | signature; |
| 2617 | |
| 2618 | MedianSkipList |
| 2619 | lists[MedianListChannels]; |
| 2620 | } MedianPixelList; |
| 2621 | |
| 2622 | static MedianPixelList *DestroyMedianPixelList(MedianPixelList *pixel_list) |
| 2623 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2624 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2625 | i; |
| 2626 | |
| 2627 | if (pixel_list == (MedianPixelList *) NULL) |
| 2628 | return((MedianPixelList *) NULL); |
| 2629 | for (i=0; i < MedianListChannels; i++) |
| 2630 | if (pixel_list->lists[i].nodes != (MedianListNode *) NULL) |
| 2631 | pixel_list->lists[i].nodes=(MedianListNode *) RelinquishMagickMemory( |
| 2632 | pixel_list->lists[i].nodes); |
| 2633 | pixel_list=(MedianPixelList *) RelinquishAlignedMemory(pixel_list); |
| 2634 | return(pixel_list); |
| 2635 | } |
| 2636 | |
| 2637 | static MedianPixelList **DestroyMedianPixelListThreadSet( |
| 2638 | MedianPixelList **pixel_list) |
| 2639 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2640 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2641 | i; |
| 2642 | |
| 2643 | assert(pixel_list != (MedianPixelList **) NULL); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2644 | for (i=0; i < (ssize_t) GetOpenMPMaximumThreads(); i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2645 | if (pixel_list[i] != (MedianPixelList *) NULL) |
| 2646 | pixel_list[i]=DestroyMedianPixelList(pixel_list[i]); |
| 2647 | pixel_list=(MedianPixelList **) RelinquishAlignedMemory(pixel_list); |
| 2648 | return(pixel_list); |
| 2649 | } |
| 2650 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2651 | static MedianPixelList *AcquireMedianPixelList(const size_t width) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2652 | { |
| 2653 | MedianPixelList |
| 2654 | *pixel_list; |
| 2655 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2656 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2657 | i; |
| 2658 | |
| 2659 | pixel_list=(MedianPixelList *) AcquireAlignedMemory(1,sizeof(*pixel_list)); |
| 2660 | if (pixel_list == (MedianPixelList *) NULL) |
| 2661 | return(pixel_list); |
| 2662 | (void) ResetMagickMemory((void *) pixel_list,0,sizeof(*pixel_list)); |
| 2663 | pixel_list->center=width*width/2; |
| 2664 | for (i=0; i < MedianListChannels; i++) |
| 2665 | { |
| 2666 | pixel_list->lists[i].nodes=(MedianListNode *) AcquireQuantumMemory(65537UL, |
| 2667 | sizeof(*pixel_list->lists[i].nodes)); |
| 2668 | if (pixel_list->lists[i].nodes == (MedianListNode *) NULL) |
| 2669 | return(DestroyMedianPixelList(pixel_list)); |
| 2670 | (void) ResetMagickMemory(pixel_list->lists[i].nodes,0,65537UL* |
| 2671 | sizeof(*pixel_list->lists[i].nodes)); |
| 2672 | } |
| 2673 | pixel_list->signature=MagickSignature; |
| 2674 | return(pixel_list); |
| 2675 | } |
| 2676 | |
| 2677 | static MedianPixelList **AcquireMedianPixelListThreadSet( |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2678 | const size_t width) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2679 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2680 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2681 | i; |
| 2682 | |
| 2683 | MedianPixelList |
| 2684 | **pixel_list; |
| 2685 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2686 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2687 | number_threads; |
| 2688 | |
| 2689 | number_threads=GetOpenMPMaximumThreads(); |
| 2690 | pixel_list=(MedianPixelList **) AcquireAlignedMemory(number_threads, |
| 2691 | sizeof(*pixel_list)); |
| 2692 | if (pixel_list == (MedianPixelList **) NULL) |
| 2693 | return((MedianPixelList **) NULL); |
| 2694 | (void) ResetMagickMemory(pixel_list,0,number_threads*sizeof(*pixel_list)); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2695 | for (i=0; i < (ssize_t) number_threads; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2696 | { |
| 2697 | pixel_list[i]=AcquireMedianPixelList(width); |
| 2698 | if (pixel_list[i] == (MedianPixelList *) NULL) |
| 2699 | return(DestroyMedianPixelListThreadSet(pixel_list)); |
| 2700 | } |
| 2701 | return(pixel_list); |
| 2702 | } |
| 2703 | |
| 2704 | static void AddNodeMedianPixelList(MedianPixelList *pixel_list, |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2705 | const ssize_t channel,const size_t color) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2706 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2707 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2708 | level; |
| 2709 | |
| 2710 | register MedianSkipList |
| 2711 | *list; |
| 2712 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2713 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2714 | search, |
| 2715 | update[9]; |
| 2716 | |
| 2717 | /* |
| 2718 | Initialize the node. |
| 2719 | */ |
| 2720 | list=pixel_list->lists+channel; |
| 2721 | list->nodes[color].signature=pixel_list->signature; |
| 2722 | list->nodes[color].count=1; |
| 2723 | /* |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2724 | Determine where it bessize_ts in the list. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2725 | */ |
| 2726 | search=65536UL; |
| 2727 | for (level=list->level; level >= 0; level--) |
| 2728 | { |
| 2729 | while (list->nodes[search].next[level] < color) |
| 2730 | search=list->nodes[search].next[level]; |
| 2731 | update[level]=search; |
| 2732 | } |
| 2733 | /* |
| 2734 | Generate a pseudo-random level for this node. |
| 2735 | */ |
| 2736 | for (level=0; ; level++) |
| 2737 | { |
| 2738 | pixel_list->seed=(pixel_list->seed*42893621L)+1L; |
| 2739 | if ((pixel_list->seed & 0x300) != 0x300) |
| 2740 | break; |
| 2741 | } |
| 2742 | if (level > 8) |
| 2743 | level=8; |
| 2744 | if (level > (list->level+2)) |
| 2745 | level=list->level+2; |
| 2746 | /* |
| 2747 | If we're raising the list's level, link back to the root node. |
| 2748 | */ |
| 2749 | while (level > list->level) |
| 2750 | { |
| 2751 | list->level++; |
| 2752 | update[list->level]=65536UL; |
| 2753 | } |
| 2754 | /* |
| 2755 | Link the node into the skip-list. |
| 2756 | */ |
| 2757 | do |
| 2758 | { |
| 2759 | list->nodes[color].next[level]=list->nodes[update[level]].next[level]; |
| 2760 | list->nodes[update[level]].next[level]=color; |
| 2761 | } |
| 2762 | while (level-- > 0); |
| 2763 | } |
| 2764 | |
| 2765 | static MagickPixelPacket GetMedianPixelList(MedianPixelList *pixel_list) |
| 2766 | { |
| 2767 | MagickPixelPacket |
| 2768 | pixel; |
| 2769 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2770 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2771 | channel; |
| 2772 | |
| 2773 | register MedianSkipList |
| 2774 | *list; |
| 2775 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2776 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2777 | center, |
| 2778 | color, |
| 2779 | count; |
| 2780 | |
| 2781 | unsigned short |
| 2782 | channels[MedianListChannels]; |
| 2783 | |
| 2784 | /* |
| 2785 | Find the median value for each of the color. |
| 2786 | */ |
| 2787 | center=pixel_list->center; |
| 2788 | for (channel=0; channel < 5; channel++) |
| 2789 | { |
| 2790 | list=pixel_list->lists+channel; |
| 2791 | color=65536UL; |
| 2792 | count=0; |
| 2793 | do |
| 2794 | { |
| 2795 | color=list->nodes[color].next[0]; |
| 2796 | count+=list->nodes[color].count; |
| 2797 | } |
| 2798 | while (count <= center); |
| 2799 | channels[channel]=(unsigned short) color; |
| 2800 | } |
| 2801 | GetMagickPixelPacket((const Image *) NULL,&pixel); |
| 2802 | pixel.red=(MagickRealType) ScaleShortToQuantum(channels[0]); |
| 2803 | pixel.green=(MagickRealType) ScaleShortToQuantum(channels[1]); |
| 2804 | pixel.blue=(MagickRealType) ScaleShortToQuantum(channels[2]); |
| 2805 | pixel.opacity=(MagickRealType) ScaleShortToQuantum(channels[3]); |
| 2806 | pixel.index=(MagickRealType) ScaleShortToQuantum(channels[4]); |
| 2807 | return(pixel); |
| 2808 | } |
| 2809 | |
| 2810 | static inline void InsertMedianPixelList(const Image *image, |
| 2811 | const PixelPacket *pixel,const IndexPacket *indexes, |
| 2812 | MedianPixelList *pixel_list) |
| 2813 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2814 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2815 | signature; |
| 2816 | |
| 2817 | unsigned short |
| 2818 | index; |
| 2819 | |
| 2820 | index=ScaleQuantumToShort(pixel->red); |
| 2821 | signature=pixel_list->lists[0].nodes[index].signature; |
| 2822 | if (signature == pixel_list->signature) |
| 2823 | pixel_list->lists[0].nodes[index].count++; |
| 2824 | else |
| 2825 | AddNodeMedianPixelList(pixel_list,0,index); |
| 2826 | index=ScaleQuantumToShort(pixel->green); |
| 2827 | signature=pixel_list->lists[1].nodes[index].signature; |
| 2828 | if (signature == pixel_list->signature) |
| 2829 | pixel_list->lists[1].nodes[index].count++; |
| 2830 | else |
| 2831 | AddNodeMedianPixelList(pixel_list,1,index); |
| 2832 | index=ScaleQuantumToShort(pixel->blue); |
| 2833 | signature=pixel_list->lists[2].nodes[index].signature; |
| 2834 | if (signature == pixel_list->signature) |
| 2835 | pixel_list->lists[2].nodes[index].count++; |
| 2836 | else |
| 2837 | AddNodeMedianPixelList(pixel_list,2,index); |
| 2838 | index=ScaleQuantumToShort(pixel->opacity); |
| 2839 | signature=pixel_list->lists[3].nodes[index].signature; |
| 2840 | if (signature == pixel_list->signature) |
| 2841 | pixel_list->lists[3].nodes[index].count++; |
| 2842 | else |
| 2843 | AddNodeMedianPixelList(pixel_list,3,index); |
| 2844 | if (image->colorspace == CMYKColorspace) |
| 2845 | index=ScaleQuantumToShort(*indexes); |
| 2846 | signature=pixel_list->lists[4].nodes[index].signature; |
| 2847 | if (signature == pixel_list->signature) |
| 2848 | pixel_list->lists[4].nodes[index].count++; |
| 2849 | else |
| 2850 | AddNodeMedianPixelList(pixel_list,4,index); |
| 2851 | } |
| 2852 | |
| 2853 | static void ResetMedianPixelList(MedianPixelList *pixel_list) |
| 2854 | { |
| 2855 | int |
| 2856 | level; |
| 2857 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2858 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2859 | channel; |
| 2860 | |
| 2861 | register MedianListNode |
| 2862 | *root; |
| 2863 | |
| 2864 | register MedianSkipList |
| 2865 | *list; |
| 2866 | |
| 2867 | /* |
| 2868 | Reset the skip-list. |
| 2869 | */ |
| 2870 | for (channel=0; channel < 5; channel++) |
| 2871 | { |
| 2872 | list=pixel_list->lists+channel; |
| 2873 | root=list->nodes+65536UL; |
| 2874 | list->level=0; |
| 2875 | for (level=0; level < 9; level++) |
| 2876 | root->next[level]=65536UL; |
| 2877 | } |
| 2878 | pixel_list->seed=pixel_list->signature++; |
| 2879 | } |
| 2880 | |
| 2881 | MagickExport Image *MedianFilterImage(const Image *image,const double radius, |
| 2882 | ExceptionInfo *exception) |
| 2883 | { |
| 2884 | #define MedianFilterImageTag "MedianFilter/Image" |
| 2885 | |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 2886 | CacheView |
| 2887 | *image_view, |
| 2888 | *median_view; |
| 2889 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2890 | Image |
| 2891 | *median_image; |
| 2892 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2893 | MagickBooleanType |
| 2894 | status; |
| 2895 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2896 | MagickOffsetType |
| 2897 | progress; |
| 2898 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2899 | MedianPixelList |
cristy | fa11211 | 2010-01-04 17:48:07 +0000 | [diff] [blame] | 2900 | **restrict pixel_list; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2901 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2902 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2903 | width; |
| 2904 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2905 | ssize_t |
| 2906 | y; |
| 2907 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2908 | /* |
| 2909 | Initialize median image attributes. |
| 2910 | */ |
| 2911 | assert(image != (Image *) NULL); |
| 2912 | assert(image->signature == MagickSignature); |
| 2913 | if (image->debug != MagickFalse) |
| 2914 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 2915 | assert(exception != (ExceptionInfo *) NULL); |
| 2916 | assert(exception->signature == MagickSignature); |
| 2917 | width=GetOptimalKernelWidth2D(radius,0.5); |
| 2918 | if ((image->columns < width) || (image->rows < width)) |
| 2919 | ThrowImageException(OptionError,"ImageSmallerThanKernelRadius"); |
| 2920 | median_image=CloneImage(image,image->columns,image->rows,MagickTrue, |
| 2921 | exception); |
| 2922 | if (median_image == (Image *) NULL) |
| 2923 | return((Image *) NULL); |
| 2924 | if (SetImageStorageClass(median_image,DirectClass) == MagickFalse) |
| 2925 | { |
| 2926 | InheritException(exception,&median_image->exception); |
| 2927 | median_image=DestroyImage(median_image); |
| 2928 | return((Image *) NULL); |
| 2929 | } |
| 2930 | pixel_list=AcquireMedianPixelListThreadSet(width); |
| 2931 | if (pixel_list == (MedianPixelList **) NULL) |
| 2932 | { |
| 2933 | median_image=DestroyImage(median_image); |
| 2934 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 2935 | } |
| 2936 | /* |
| 2937 | Median filter each image row. |
| 2938 | */ |
| 2939 | status=MagickTrue; |
| 2940 | progress=0; |
| 2941 | image_view=AcquireCacheView(image); |
| 2942 | median_view=AcquireCacheView(median_image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 2943 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 2944 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2945 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2946 | for (y=0; y < (ssize_t) median_image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2947 | { |
| 2948 | register const IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 2949 | *restrict indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2950 | |
| 2951 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 2952 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2953 | |
| 2954 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 2955 | *restrict median_indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2956 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2957 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2958 | id, |
| 2959 | x; |
| 2960 | |
| 2961 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 2962 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2963 | |
| 2964 | if (status == MagickFalse) |
| 2965 | continue; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2966 | p=GetCacheViewVirtualPixels(image_view,-((ssize_t) width/2L),y-(ssize_t) (width/ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2967 | 2L),image->columns+width,width,exception); |
| 2968 | q=QueueCacheViewAuthenticPixels(median_view,0,y,median_image->columns,1, |
| 2969 | exception); |
| 2970 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 2971 | { |
| 2972 | status=MagickFalse; |
| 2973 | continue; |
| 2974 | } |
| 2975 | indexes=GetCacheViewVirtualIndexQueue(image_view); |
| 2976 | median_indexes=GetCacheViewAuthenticIndexQueue(median_view); |
| 2977 | id=GetOpenMPThreadId(); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2978 | for (x=0; x < (ssize_t) median_image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2979 | { |
| 2980 | MagickPixelPacket |
| 2981 | pixel; |
| 2982 | |
| 2983 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 2984 | *restrict r; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2985 | |
| 2986 | register const IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 2987 | *restrict s; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2988 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2989 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2990 | u, |
| 2991 | v; |
| 2992 | |
| 2993 | r=p; |
| 2994 | s=indexes+x; |
| 2995 | ResetMedianPixelList(pixel_list[id]); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2996 | for (v=0; v < (ssize_t) width; v++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2997 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 2998 | for (u=0; u < (ssize_t) width; u++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2999 | InsertMedianPixelList(image,r+u,s+u,pixel_list[id]); |
| 3000 | r+=image->columns+width; |
| 3001 | s+=image->columns+width; |
| 3002 | } |
| 3003 | pixel=GetMedianPixelList(pixel_list[id]); |
| 3004 | SetPixelPacket(median_image,&pixel,q,median_indexes+x); |
| 3005 | p++; |
| 3006 | q++; |
| 3007 | } |
| 3008 | if (SyncCacheViewAuthenticPixels(median_view,exception) == MagickFalse) |
| 3009 | status=MagickFalse; |
| 3010 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 3011 | { |
| 3012 | MagickBooleanType |
| 3013 | proceed; |
| 3014 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 3015 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3016 | #pragma omp critical (MagickCore_MedianFilterImage) |
| 3017 | #endif |
| 3018 | proceed=SetImageProgress(image,MedianFilterImageTag,progress++, |
| 3019 | image->rows); |
| 3020 | if (proceed == MagickFalse) |
| 3021 | status=MagickFalse; |
| 3022 | } |
| 3023 | } |
| 3024 | median_view=DestroyCacheView(median_view); |
| 3025 | image_view=DestroyCacheView(image_view); |
| 3026 | pixel_list=DestroyMedianPixelListThreadSet(pixel_list); |
| 3027 | return(median_image); |
| 3028 | } |
| 3029 | |
| 3030 | /* |
| 3031 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3032 | % % |
| 3033 | % % |
| 3034 | % % |
| 3035 | % M o t i o n B l u r I m a g e % |
| 3036 | % % |
| 3037 | % % |
| 3038 | % % |
| 3039 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3040 | % |
| 3041 | % MotionBlurImage() simulates motion blur. We convolve the image with a |
| 3042 | % Gaussian operator of the given radius and standard deviation (sigma). |
| 3043 | % For reasonable results, radius should be larger than sigma. Use a |
| 3044 | % radius of 0 and MotionBlurImage() selects a suitable radius for you. |
| 3045 | % Angle gives the angle of the blurring motion. |
| 3046 | % |
| 3047 | % Andrew Protano contributed this effect. |
| 3048 | % |
| 3049 | % The format of the MotionBlurImage method is: |
| 3050 | % |
| 3051 | % Image *MotionBlurImage(const Image *image,const double radius, |
| 3052 | % const double sigma,const double angle,ExceptionInfo *exception) |
| 3053 | % Image *MotionBlurImageChannel(const Image *image,const ChannelType channel, |
| 3054 | % const double radius,const double sigma,const double angle, |
| 3055 | % ExceptionInfo *exception) |
| 3056 | % |
| 3057 | % A description of each parameter follows: |
| 3058 | % |
| 3059 | % o image: the image. |
| 3060 | % |
| 3061 | % o channel: the channel type. |
| 3062 | % |
| 3063 | % o radius: the radius of the Gaussian, in pixels, not counting the center |
| 3064 | % o radius: the radius of the Gaussian, in pixels, not counting |
| 3065 | % the center pixel. |
| 3066 | % |
| 3067 | % o sigma: the standard deviation of the Gaussian, in pixels. |
| 3068 | % |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3069 | % o angle: Apply the effect assize_t this angle. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3070 | % |
| 3071 | % o exception: return any errors or warnings in this structure. |
| 3072 | % |
| 3073 | */ |
| 3074 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3075 | static double *GetMotionBlurKernel(const size_t width,const double sigma) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3076 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3077 | double |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 3078 | *kernel, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3079 | normalize; |
| 3080 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3081 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3082 | i; |
| 3083 | |
| 3084 | /* |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 3085 | Generate a 1-D convolution kernel. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3086 | */ |
| 3087 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); |
| 3088 | kernel=(double *) AcquireQuantumMemory((size_t) width,sizeof(*kernel)); |
| 3089 | if (kernel == (double *) NULL) |
| 3090 | return(kernel); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3091 | normalize=0.0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3092 | for (i=0; i < (ssize_t) width; i++) |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 3093 | { |
| 3094 | kernel[i]=exp((-((double) i*i)/(double) (2.0*MagickSigma*MagickSigma)))/ |
| 3095 | (MagickSQ2PI*MagickSigma); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3096 | normalize+=kernel[i]; |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 3097 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3098 | for (i=0; i < (ssize_t) width; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3099 | kernel[i]/=normalize; |
| 3100 | return(kernel); |
| 3101 | } |
| 3102 | |
| 3103 | MagickExport Image *MotionBlurImage(const Image *image,const double radius, |
| 3104 | const double sigma,const double angle,ExceptionInfo *exception) |
| 3105 | { |
| 3106 | Image |
| 3107 | *motion_blur; |
| 3108 | |
| 3109 | motion_blur=MotionBlurImageChannel(image,DefaultChannels,radius,sigma,angle, |
| 3110 | exception); |
| 3111 | return(motion_blur); |
| 3112 | } |
| 3113 | |
| 3114 | MagickExport Image *MotionBlurImageChannel(const Image *image, |
| 3115 | const ChannelType channel,const double radius,const double sigma, |
| 3116 | const double angle,ExceptionInfo *exception) |
| 3117 | { |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 3118 | CacheView |
| 3119 | *blur_view, |
| 3120 | *image_view; |
| 3121 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3122 | double |
| 3123 | *kernel; |
| 3124 | |
| 3125 | Image |
| 3126 | *blur_image; |
| 3127 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3128 | MagickBooleanType |
| 3129 | status; |
| 3130 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3131 | MagickOffsetType |
| 3132 | progress; |
| 3133 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3134 | MagickPixelPacket |
cristy | ddd8220 | 2009-11-03 20:14:50 +0000 | [diff] [blame] | 3135 | bias; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3136 | |
| 3137 | OffsetInfo |
| 3138 | *offset; |
| 3139 | |
| 3140 | PointInfo |
| 3141 | point; |
| 3142 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3143 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3144 | i; |
| 3145 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3146 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3147 | width; |
| 3148 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3149 | ssize_t |
| 3150 | y; |
| 3151 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3152 | assert(image != (Image *) NULL); |
| 3153 | assert(image->signature == MagickSignature); |
| 3154 | if (image->debug != MagickFalse) |
| 3155 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 3156 | assert(exception != (ExceptionInfo *) NULL); |
| 3157 | width=GetOptimalKernelWidth1D(radius,sigma); |
| 3158 | kernel=GetMotionBlurKernel(width,sigma); |
| 3159 | if (kernel == (double *) NULL) |
| 3160 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 3161 | offset=(OffsetInfo *) AcquireQuantumMemory(width,sizeof(*offset)); |
| 3162 | if (offset == (OffsetInfo *) NULL) |
| 3163 | { |
| 3164 | kernel=(double *) RelinquishMagickMemory(kernel); |
| 3165 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 3166 | } |
| 3167 | blur_image=CloneImage(image,0,0,MagickTrue,exception); |
| 3168 | if (blur_image == (Image *) NULL) |
| 3169 | { |
| 3170 | kernel=(double *) RelinquishMagickMemory(kernel); |
| 3171 | offset=(OffsetInfo *) RelinquishMagickMemory(offset); |
| 3172 | return((Image *) NULL); |
| 3173 | } |
| 3174 | if (SetImageStorageClass(blur_image,DirectClass) == MagickFalse) |
| 3175 | { |
| 3176 | kernel=(double *) RelinquishMagickMemory(kernel); |
| 3177 | offset=(OffsetInfo *) RelinquishMagickMemory(offset); |
| 3178 | InheritException(exception,&blur_image->exception); |
| 3179 | blur_image=DestroyImage(blur_image); |
| 3180 | return((Image *) NULL); |
| 3181 | } |
| 3182 | point.x=(double) width*sin(DegreesToRadians(angle)); |
| 3183 | point.y=(double) width*cos(DegreesToRadians(angle)); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3184 | for (i=0; i < (ssize_t) width; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3185 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3186 | offset[i].x=(ssize_t) ceil((double) (i*point.y)/hypot(point.x,point.y)-0.5); |
| 3187 | offset[i].y=(ssize_t) ceil((double) (i*point.x)/hypot(point.x,point.y)-0.5); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3188 | } |
| 3189 | /* |
| 3190 | Motion blur image. |
| 3191 | */ |
| 3192 | status=MagickTrue; |
| 3193 | progress=0; |
cristy | ddd8220 | 2009-11-03 20:14:50 +0000 | [diff] [blame] | 3194 | GetMagickPixelPacket(image,&bias); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3195 | image_view=AcquireCacheView(image); |
| 3196 | blur_view=AcquireCacheView(blur_image); |
cristy | d3dd050 | 2010-04-26 00:57:20 +0000 | [diff] [blame] | 3197 | #if defined(MAGICKCORE_OPENMP_SUPPORT) && defined(MAGICKCORE_FUTURE) |
cristy | 8a7ea36 | 2010-03-10 20:31:43 +0000 | [diff] [blame] | 3198 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3199 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3200 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3201 | { |
| 3202 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 3203 | *restrict blur_indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3204 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3205 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3206 | x; |
| 3207 | |
| 3208 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 3209 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3210 | |
| 3211 | if (status == MagickFalse) |
| 3212 | continue; |
| 3213 | q=GetCacheViewAuthenticPixels(blur_view,0,y,blur_image->columns,1, |
| 3214 | exception); |
| 3215 | if (q == (PixelPacket *) NULL) |
| 3216 | { |
| 3217 | status=MagickFalse; |
| 3218 | continue; |
| 3219 | } |
| 3220 | blur_indexes=GetCacheViewAuthenticIndexQueue(blur_view); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3221 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3222 | { |
| 3223 | MagickPixelPacket |
| 3224 | qixel; |
| 3225 | |
| 3226 | PixelPacket |
| 3227 | pixel; |
| 3228 | |
| 3229 | register double |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 3230 | *restrict k; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3231 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3232 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3233 | i; |
| 3234 | |
| 3235 | register const IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 3236 | *restrict indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3237 | |
| 3238 | k=kernel; |
cristy | ddd8220 | 2009-11-03 20:14:50 +0000 | [diff] [blame] | 3239 | qixel=bias; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3240 | if (((channel & OpacityChannel) == 0) || (image->matte == MagickFalse)) |
| 3241 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3242 | for (i=0; i < (ssize_t) width; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3243 | { |
| 3244 | (void) GetOneCacheViewVirtualPixel(image_view,x+offset[i].x,y+ |
| 3245 | offset[i].y,&pixel,exception); |
| 3246 | qixel.red+=(*k)*pixel.red; |
| 3247 | qixel.green+=(*k)*pixel.green; |
| 3248 | qixel.blue+=(*k)*pixel.blue; |
| 3249 | qixel.opacity+=(*k)*pixel.opacity; |
| 3250 | if (image->colorspace == CMYKColorspace) |
| 3251 | { |
| 3252 | indexes=GetCacheViewVirtualIndexQueue(image_view); |
| 3253 | qixel.index+=(*k)*(*indexes); |
| 3254 | } |
| 3255 | k++; |
| 3256 | } |
| 3257 | if ((channel & RedChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 3258 | q->red=ClampToQuantum(qixel.red); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3259 | if ((channel & GreenChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 3260 | q->green=ClampToQuantum(qixel.green); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3261 | if ((channel & BlueChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 3262 | q->blue=ClampToQuantum(qixel.blue); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3263 | if ((channel & OpacityChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 3264 | q->opacity=ClampToQuantum(qixel.opacity); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3265 | if (((channel & IndexChannel) != 0) && |
| 3266 | (image->colorspace == CMYKColorspace)) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 3267 | blur_indexes[x]=(IndexPacket) ClampToQuantum(qixel.index); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3268 | } |
| 3269 | else |
| 3270 | { |
| 3271 | MagickRealType |
| 3272 | alpha, |
| 3273 | gamma; |
| 3274 | |
| 3275 | alpha=0.0; |
| 3276 | gamma=0.0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3277 | for (i=0; i < (ssize_t) width; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3278 | { |
| 3279 | (void) GetOneCacheViewVirtualPixel(image_view,x+offset[i].x,y+ |
| 3280 | offset[i].y,&pixel,exception); |
cristy | 8a7ea36 | 2010-03-10 20:31:43 +0000 | [diff] [blame] | 3281 | alpha=(MagickRealType) (QuantumScale* |
| 3282 | GetAlphaPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3283 | qixel.red+=(*k)*alpha*pixel.red; |
| 3284 | qixel.green+=(*k)*alpha*pixel.green; |
| 3285 | qixel.blue+=(*k)*alpha*pixel.blue; |
| 3286 | qixel.opacity+=(*k)*pixel.opacity; |
| 3287 | if (image->colorspace == CMYKColorspace) |
| 3288 | { |
| 3289 | indexes=GetCacheViewVirtualIndexQueue(image_view); |
| 3290 | qixel.index+=(*k)*alpha*(*indexes); |
| 3291 | } |
| 3292 | gamma+=(*k)*alpha; |
| 3293 | k++; |
| 3294 | } |
| 3295 | gamma=1.0/(fabs((double) gamma) <= MagickEpsilon ? 1.0 : gamma); |
| 3296 | if ((channel & RedChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 3297 | q->red=ClampToQuantum(gamma*qixel.red); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3298 | if ((channel & GreenChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 3299 | q->green=ClampToQuantum(gamma*qixel.green); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3300 | if ((channel & BlueChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 3301 | q->blue=ClampToQuantum(gamma*qixel.blue); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3302 | if ((channel & OpacityChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 3303 | q->opacity=ClampToQuantum(qixel.opacity); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3304 | if (((channel & IndexChannel) != 0) && |
| 3305 | (image->colorspace == CMYKColorspace)) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 3306 | blur_indexes[x]=(IndexPacket) ClampToQuantum(gamma*qixel.index); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3307 | } |
| 3308 | q++; |
| 3309 | } |
| 3310 | if (SyncCacheViewAuthenticPixels(blur_view,exception) == MagickFalse) |
| 3311 | status=MagickFalse; |
| 3312 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 3313 | { |
| 3314 | MagickBooleanType |
| 3315 | proceed; |
| 3316 | |
cristy | d3dd050 | 2010-04-26 00:57:20 +0000 | [diff] [blame] | 3317 | #if defined(MAGICKCORE_OPENMP_SUPPORT) && defined(MAGICKCORE_FUTURE) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3318 | #pragma omp critical (MagickCore_MotionBlurImageChannel) |
| 3319 | #endif |
| 3320 | proceed=SetImageProgress(image,BlurImageTag,progress++,image->rows); |
| 3321 | if (proceed == MagickFalse) |
| 3322 | status=MagickFalse; |
| 3323 | } |
| 3324 | } |
| 3325 | blur_view=DestroyCacheView(blur_view); |
| 3326 | image_view=DestroyCacheView(image_view); |
| 3327 | kernel=(double *) RelinquishMagickMemory(kernel); |
| 3328 | offset=(OffsetInfo *) RelinquishMagickMemory(offset); |
| 3329 | if (status == MagickFalse) |
| 3330 | blur_image=DestroyImage(blur_image); |
| 3331 | return(blur_image); |
| 3332 | } |
| 3333 | |
| 3334 | /* |
| 3335 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3336 | % % |
| 3337 | % % |
| 3338 | % % |
| 3339 | % P r e v i e w I m a g e % |
| 3340 | % % |
| 3341 | % % |
| 3342 | % % |
| 3343 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3344 | % |
| 3345 | % PreviewImage() tiles 9 thumbnails of the specified image with an image |
| 3346 | % processing operation applied with varying parameters. This may be helpful |
| 3347 | % pin-pointing an appropriate parameter for a particular image processing |
| 3348 | % operation. |
| 3349 | % |
| 3350 | % The format of the PreviewImages method is: |
| 3351 | % |
| 3352 | % Image *PreviewImages(const Image *image,const PreviewType preview, |
| 3353 | % ExceptionInfo *exception) |
| 3354 | % |
| 3355 | % A description of each parameter follows: |
| 3356 | % |
| 3357 | % o image: the image. |
| 3358 | % |
| 3359 | % o preview: the image processing operation. |
| 3360 | % |
| 3361 | % o exception: return any errors or warnings in this structure. |
| 3362 | % |
| 3363 | */ |
| 3364 | MagickExport Image *PreviewImage(const Image *image,const PreviewType preview, |
| 3365 | ExceptionInfo *exception) |
| 3366 | { |
| 3367 | #define NumberTiles 9 |
| 3368 | #define PreviewImageTag "Preview/Image" |
| 3369 | #define DefaultPreviewGeometry "204x204+10+10" |
| 3370 | |
| 3371 | char |
| 3372 | factor[MaxTextExtent], |
| 3373 | label[MaxTextExtent]; |
| 3374 | |
| 3375 | double |
| 3376 | degrees, |
| 3377 | gamma, |
| 3378 | percentage, |
| 3379 | radius, |
| 3380 | sigma, |
| 3381 | threshold; |
| 3382 | |
| 3383 | Image |
| 3384 | *images, |
| 3385 | *montage_image, |
| 3386 | *preview_image, |
| 3387 | *thumbnail; |
| 3388 | |
| 3389 | ImageInfo |
| 3390 | *preview_info; |
| 3391 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3392 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3393 | y; |
| 3394 | |
| 3395 | MagickBooleanType |
| 3396 | proceed; |
| 3397 | |
| 3398 | MontageInfo |
| 3399 | *montage_info; |
| 3400 | |
| 3401 | QuantizeInfo |
| 3402 | quantize_info; |
| 3403 | |
| 3404 | RectangleInfo |
| 3405 | geometry; |
| 3406 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3407 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3408 | i, |
| 3409 | x; |
| 3410 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3411 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3412 | colors; |
| 3413 | |
| 3414 | /* |
| 3415 | Open output image file. |
| 3416 | */ |
| 3417 | assert(image != (Image *) NULL); |
| 3418 | assert(image->signature == MagickSignature); |
| 3419 | if (image->debug != MagickFalse) |
| 3420 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 3421 | colors=2; |
| 3422 | degrees=0.0; |
| 3423 | gamma=(-0.2f); |
| 3424 | preview_info=AcquireImageInfo(); |
| 3425 | SetGeometry(image,&geometry); |
| 3426 | (void) ParseMetaGeometry(DefaultPreviewGeometry,&geometry.x,&geometry.y, |
| 3427 | &geometry.width,&geometry.height); |
| 3428 | images=NewImageList(); |
| 3429 | percentage=12.5; |
| 3430 | GetQuantizeInfo(&quantize_info); |
| 3431 | radius=0.0; |
| 3432 | sigma=1.0; |
| 3433 | threshold=0.0; |
| 3434 | x=0; |
| 3435 | y=0; |
| 3436 | for (i=0; i < NumberTiles; i++) |
| 3437 | { |
| 3438 | thumbnail=ThumbnailImage(image,geometry.width,geometry.height,exception); |
| 3439 | if (thumbnail == (Image *) NULL) |
| 3440 | break; |
| 3441 | (void) SetImageProgressMonitor(thumbnail,(MagickProgressMonitor) NULL, |
| 3442 | (void *) NULL); |
| 3443 | (void) SetImageProperty(thumbnail,"label",DefaultTileLabel); |
| 3444 | if (i == (NumberTiles/2)) |
| 3445 | { |
| 3446 | (void) QueryColorDatabase("#dfdfdf",&thumbnail->matte_color,exception); |
| 3447 | AppendImageToList(&images,thumbnail); |
| 3448 | continue; |
| 3449 | } |
| 3450 | switch (preview) |
| 3451 | { |
| 3452 | case RotatePreview: |
| 3453 | { |
| 3454 | degrees+=45.0; |
| 3455 | preview_image=RotateImage(thumbnail,degrees,exception); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 3456 | (void) FormatMagickString(label,MaxTextExtent,"rotate %g",degrees); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3457 | break; |
| 3458 | } |
| 3459 | case ShearPreview: |
| 3460 | { |
| 3461 | degrees+=5.0; |
| 3462 | preview_image=ShearImage(thumbnail,degrees,degrees,exception); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 3463 | (void) FormatMagickString(label,MaxTextExtent,"shear %gx%g", |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3464 | degrees,2.0*degrees); |
| 3465 | break; |
| 3466 | } |
| 3467 | case RollPreview: |
| 3468 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3469 | x=(ssize_t) ((i+1)*thumbnail->columns)/NumberTiles; |
| 3470 | y=(ssize_t) ((i+1)*thumbnail->rows)/NumberTiles; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3471 | preview_image=RollImage(thumbnail,x,y,exception); |
| 3472 | (void) FormatMagickString(label,MaxTextExtent,"roll %ldx%ld",x,y); |
| 3473 | break; |
| 3474 | } |
| 3475 | case HuePreview: |
| 3476 | { |
| 3477 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 3478 | if (preview_image == (Image *) NULL) |
| 3479 | break; |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 3480 | (void) FormatMagickString(factor,MaxTextExtent,"100,100,%g", |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3481 | 2.0*percentage); |
| 3482 | (void) ModulateImage(preview_image,factor); |
| 3483 | (void) FormatMagickString(label,MaxTextExtent,"modulate %s",factor); |
| 3484 | break; |
| 3485 | } |
| 3486 | case SaturationPreview: |
| 3487 | { |
| 3488 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 3489 | if (preview_image == (Image *) NULL) |
| 3490 | break; |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 3491 | (void) FormatMagickString(factor,MaxTextExtent,"100,%g", |
cristy | 8cd5b31 | 2010-01-07 01:10:24 +0000 | [diff] [blame] | 3492 | 2.0*percentage); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3493 | (void) ModulateImage(preview_image,factor); |
| 3494 | (void) FormatMagickString(label,MaxTextExtent,"modulate %s",factor); |
| 3495 | break; |
| 3496 | } |
| 3497 | case BrightnessPreview: |
| 3498 | { |
| 3499 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 3500 | if (preview_image == (Image *) NULL) |
| 3501 | break; |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 3502 | (void) FormatMagickString(factor,MaxTextExtent,"%g",2.0*percentage); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3503 | (void) ModulateImage(preview_image,factor); |
| 3504 | (void) FormatMagickString(label,MaxTextExtent,"modulate %s",factor); |
| 3505 | break; |
| 3506 | } |
| 3507 | case GammaPreview: |
| 3508 | default: |
| 3509 | { |
| 3510 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 3511 | if (preview_image == (Image *) NULL) |
| 3512 | break; |
| 3513 | gamma+=0.4f; |
| 3514 | (void) GammaImageChannel(preview_image,DefaultChannels,gamma); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 3515 | (void) FormatMagickString(label,MaxTextExtent,"gamma %g",gamma); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3516 | break; |
| 3517 | } |
| 3518 | case SpiffPreview: |
| 3519 | { |
| 3520 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 3521 | if (preview_image != (Image *) NULL) |
| 3522 | for (x=0; x < i; x++) |
| 3523 | (void) ContrastImage(preview_image,MagickTrue); |
| 3524 | (void) FormatMagickString(label,MaxTextExtent,"contrast (%ld)",i+1); |
| 3525 | break; |
| 3526 | } |
| 3527 | case DullPreview: |
| 3528 | { |
| 3529 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 3530 | if (preview_image == (Image *) NULL) |
| 3531 | break; |
| 3532 | for (x=0; x < i; x++) |
| 3533 | (void) ContrastImage(preview_image,MagickFalse); |
| 3534 | (void) FormatMagickString(label,MaxTextExtent,"+contrast (%ld)",i+1); |
| 3535 | break; |
| 3536 | } |
| 3537 | case GrayscalePreview: |
| 3538 | { |
| 3539 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 3540 | if (preview_image == (Image *) NULL) |
| 3541 | break; |
| 3542 | colors<<=1; |
| 3543 | quantize_info.number_colors=colors; |
| 3544 | quantize_info.colorspace=GRAYColorspace; |
| 3545 | (void) QuantizeImage(&quantize_info,preview_image); |
| 3546 | (void) FormatMagickString(label,MaxTextExtent, |
| 3547 | "-colorspace gray -colors %ld",colors); |
| 3548 | break; |
| 3549 | } |
| 3550 | case QuantizePreview: |
| 3551 | { |
| 3552 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 3553 | if (preview_image == (Image *) NULL) |
| 3554 | break; |
| 3555 | colors<<=1; |
| 3556 | quantize_info.number_colors=colors; |
| 3557 | (void) QuantizeImage(&quantize_info,preview_image); |
| 3558 | (void) FormatMagickString(label,MaxTextExtent,"colors %ld",colors); |
| 3559 | break; |
| 3560 | } |
| 3561 | case DespecklePreview: |
| 3562 | { |
| 3563 | for (x=0; x < (i-1); x++) |
| 3564 | { |
| 3565 | preview_image=DespeckleImage(thumbnail,exception); |
| 3566 | if (preview_image == (Image *) NULL) |
| 3567 | break; |
| 3568 | thumbnail=DestroyImage(thumbnail); |
| 3569 | thumbnail=preview_image; |
| 3570 | } |
| 3571 | preview_image=DespeckleImage(thumbnail,exception); |
| 3572 | if (preview_image == (Image *) NULL) |
| 3573 | break; |
| 3574 | (void) FormatMagickString(label,MaxTextExtent,"despeckle (%ld)",i+1); |
| 3575 | break; |
| 3576 | } |
| 3577 | case ReduceNoisePreview: |
| 3578 | { |
| 3579 | preview_image=ReduceNoiseImage(thumbnail,radius,exception); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 3580 | (void) FormatMagickString(label,MaxTextExtent,"noise %g",radius); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3581 | break; |
| 3582 | } |
| 3583 | case AddNoisePreview: |
| 3584 | { |
| 3585 | switch ((int) i) |
| 3586 | { |
| 3587 | case 0: |
| 3588 | { |
| 3589 | (void) CopyMagickString(factor,"uniform",MaxTextExtent); |
| 3590 | break; |
| 3591 | } |
| 3592 | case 1: |
| 3593 | { |
| 3594 | (void) CopyMagickString(factor,"gaussian",MaxTextExtent); |
| 3595 | break; |
| 3596 | } |
| 3597 | case 2: |
| 3598 | { |
| 3599 | (void) CopyMagickString(factor,"multiplicative",MaxTextExtent); |
| 3600 | break; |
| 3601 | } |
| 3602 | case 3: |
| 3603 | { |
| 3604 | (void) CopyMagickString(factor,"impulse",MaxTextExtent); |
| 3605 | break; |
| 3606 | } |
| 3607 | case 4: |
| 3608 | { |
| 3609 | (void) CopyMagickString(factor,"laplacian",MaxTextExtent); |
| 3610 | break; |
| 3611 | } |
| 3612 | case 5: |
| 3613 | { |
| 3614 | (void) CopyMagickString(factor,"Poisson",MaxTextExtent); |
| 3615 | break; |
| 3616 | } |
| 3617 | default: |
| 3618 | { |
| 3619 | (void) CopyMagickString(thumbnail->magick,"NULL",MaxTextExtent); |
| 3620 | break; |
| 3621 | } |
| 3622 | } |
| 3623 | preview_image=ReduceNoiseImage(thumbnail,(double) i,exception); |
| 3624 | (void) FormatMagickString(label,MaxTextExtent,"+noise %s",factor); |
| 3625 | break; |
| 3626 | } |
| 3627 | case SharpenPreview: |
| 3628 | { |
| 3629 | preview_image=SharpenImage(thumbnail,radius,sigma,exception); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 3630 | (void) FormatMagickString(label,MaxTextExtent,"sharpen %gx%g", |
cristy | 8cd5b31 | 2010-01-07 01:10:24 +0000 | [diff] [blame] | 3631 | radius,sigma); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3632 | break; |
| 3633 | } |
| 3634 | case BlurPreview: |
| 3635 | { |
| 3636 | preview_image=BlurImage(thumbnail,radius,sigma,exception); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 3637 | (void) FormatMagickString(label,MaxTextExtent,"blur %gx%g",radius, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3638 | sigma); |
| 3639 | break; |
| 3640 | } |
| 3641 | case ThresholdPreview: |
| 3642 | { |
| 3643 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 3644 | if (preview_image == (Image *) NULL) |
| 3645 | break; |
| 3646 | (void) BilevelImage(thumbnail, |
| 3647 | (double) (percentage*((MagickRealType) QuantumRange+1.0))/100.0); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 3648 | (void) FormatMagickString(label,MaxTextExtent,"threshold %g", |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3649 | (double) (percentage*((MagickRealType) QuantumRange+1.0))/100.0); |
| 3650 | break; |
| 3651 | } |
| 3652 | case EdgeDetectPreview: |
| 3653 | { |
| 3654 | preview_image=EdgeImage(thumbnail,radius,exception); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 3655 | (void) FormatMagickString(label,MaxTextExtent,"edge %g",radius); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3656 | break; |
| 3657 | } |
| 3658 | case SpreadPreview: |
| 3659 | { |
| 3660 | preview_image=SpreadImage(thumbnail,radius,exception); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 3661 | (void) FormatMagickString(label,MaxTextExtent,"spread %g", |
cristy | 8cd5b31 | 2010-01-07 01:10:24 +0000 | [diff] [blame] | 3662 | radius+0.5); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3663 | break; |
| 3664 | } |
| 3665 | case SolarizePreview: |
| 3666 | { |
| 3667 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 3668 | if (preview_image == (Image *) NULL) |
| 3669 | break; |
| 3670 | (void) SolarizeImage(preview_image,(double) QuantumRange* |
| 3671 | percentage/100.0); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 3672 | (void) FormatMagickString(label,MaxTextExtent,"solarize %g", |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3673 | (QuantumRange*percentage)/100.0); |
| 3674 | break; |
| 3675 | } |
| 3676 | case ShadePreview: |
| 3677 | { |
| 3678 | degrees+=10.0; |
| 3679 | preview_image=ShadeImage(thumbnail,MagickTrue,degrees,degrees, |
| 3680 | exception); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 3681 | (void) FormatMagickString(label,MaxTextExtent,"shade %gx%g", |
cristy | 8cd5b31 | 2010-01-07 01:10:24 +0000 | [diff] [blame] | 3682 | degrees,degrees); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3683 | break; |
| 3684 | } |
| 3685 | case RaisePreview: |
| 3686 | { |
| 3687 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 3688 | if (preview_image == (Image *) NULL) |
| 3689 | break; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3690 | geometry.width=(size_t) (2*i+2); |
| 3691 | geometry.height=(size_t) (2*i+2); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3692 | geometry.x=i/2; |
| 3693 | geometry.y=i/2; |
| 3694 | (void) RaiseImage(preview_image,&geometry,MagickTrue); |
| 3695 | (void) FormatMagickString(label,MaxTextExtent,"raise %lux%lu%+ld%+ld", |
| 3696 | geometry.width,geometry.height,geometry.x,geometry.y); |
| 3697 | break; |
| 3698 | } |
| 3699 | case SegmentPreview: |
| 3700 | { |
| 3701 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 3702 | if (preview_image == (Image *) NULL) |
| 3703 | break; |
| 3704 | threshold+=0.4f; |
| 3705 | (void) SegmentImage(preview_image,RGBColorspace,MagickFalse,threshold, |
| 3706 | threshold); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 3707 | (void) FormatMagickString(label,MaxTextExtent,"segment %gx%g", |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3708 | threshold,threshold); |
| 3709 | break; |
| 3710 | } |
| 3711 | case SwirlPreview: |
| 3712 | { |
| 3713 | preview_image=SwirlImage(thumbnail,degrees,exception); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 3714 | (void) FormatMagickString(label,MaxTextExtent,"swirl %g",degrees); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3715 | degrees+=45.0; |
| 3716 | break; |
| 3717 | } |
| 3718 | case ImplodePreview: |
| 3719 | { |
| 3720 | degrees+=0.1f; |
| 3721 | preview_image=ImplodeImage(thumbnail,degrees,exception); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 3722 | (void) FormatMagickString(label,MaxTextExtent,"implode %g",degrees); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3723 | break; |
| 3724 | } |
| 3725 | case WavePreview: |
| 3726 | { |
| 3727 | degrees+=5.0f; |
| 3728 | preview_image=WaveImage(thumbnail,0.5*degrees,2.0*degrees,exception); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 3729 | (void) FormatMagickString(label,MaxTextExtent,"wave %gx%g", |
cristy | 8cd5b31 | 2010-01-07 01:10:24 +0000 | [diff] [blame] | 3730 | 0.5*degrees,2.0*degrees); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3731 | break; |
| 3732 | } |
| 3733 | case OilPaintPreview: |
| 3734 | { |
| 3735 | preview_image=OilPaintImage(thumbnail,(double) radius,exception); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 3736 | (void) FormatMagickString(label,MaxTextExtent,"paint %g",radius); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3737 | break; |
| 3738 | } |
| 3739 | case CharcoalDrawingPreview: |
| 3740 | { |
| 3741 | preview_image=CharcoalImage(thumbnail,(double) radius,(double) sigma, |
| 3742 | exception); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 3743 | (void) FormatMagickString(label,MaxTextExtent,"charcoal %gx%g", |
cristy | 8cd5b31 | 2010-01-07 01:10:24 +0000 | [diff] [blame] | 3744 | radius,sigma); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3745 | break; |
| 3746 | } |
| 3747 | case JPEGPreview: |
| 3748 | { |
| 3749 | char |
| 3750 | filename[MaxTextExtent]; |
| 3751 | |
| 3752 | int |
| 3753 | file; |
| 3754 | |
| 3755 | MagickBooleanType |
| 3756 | status; |
| 3757 | |
| 3758 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 3759 | if (preview_image == (Image *) NULL) |
| 3760 | break; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3761 | preview_info->quality=(size_t) percentage; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3762 | (void) FormatMagickString(factor,MaxTextExtent,"%lu", |
| 3763 | preview_info->quality); |
| 3764 | file=AcquireUniqueFileResource(filename); |
| 3765 | if (file != -1) |
| 3766 | file=close(file)-1; |
| 3767 | (void) FormatMagickString(preview_image->filename,MaxTextExtent, |
| 3768 | "jpeg:%s",filename); |
| 3769 | status=WriteImage(preview_info,preview_image); |
| 3770 | if (status != MagickFalse) |
| 3771 | { |
| 3772 | Image |
| 3773 | *quality_image; |
| 3774 | |
| 3775 | (void) CopyMagickString(preview_info->filename, |
| 3776 | preview_image->filename,MaxTextExtent); |
| 3777 | quality_image=ReadImage(preview_info,exception); |
| 3778 | if (quality_image != (Image *) NULL) |
| 3779 | { |
| 3780 | preview_image=DestroyImage(preview_image); |
| 3781 | preview_image=quality_image; |
| 3782 | } |
| 3783 | } |
| 3784 | (void) RelinquishUniqueFileResource(preview_image->filename); |
| 3785 | if ((GetBlobSize(preview_image)/1024) >= 1024) |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 3786 | (void) FormatMagickString(label,MaxTextExtent,"quality %s\n%gmb ", |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3787 | factor,(double) ((MagickOffsetType) GetBlobSize(preview_image))/ |
| 3788 | 1024.0/1024.0); |
| 3789 | else |
| 3790 | if (GetBlobSize(preview_image) >= 1024) |
cristy | 8cd5b31 | 2010-01-07 01:10:24 +0000 | [diff] [blame] | 3791 | (void) FormatMagickString(label,MaxTextExtent, |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 3792 | "quality %s\n%gkb ",factor,(double) ((MagickOffsetType) |
cristy | 8cd5b31 | 2010-01-07 01:10:24 +0000 | [diff] [blame] | 3793 | GetBlobSize(preview_image))/1024.0); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3794 | else |
| 3795 | (void) FormatMagickString(label,MaxTextExtent,"quality %s\n%lub ", |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3796 | factor,(size_t) GetBlobSize(thumbnail)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3797 | break; |
| 3798 | } |
| 3799 | } |
| 3800 | thumbnail=DestroyImage(thumbnail); |
| 3801 | percentage+=12.5; |
| 3802 | radius+=0.5; |
| 3803 | sigma+=0.25; |
| 3804 | if (preview_image == (Image *) NULL) |
| 3805 | break; |
| 3806 | (void) DeleteImageProperty(preview_image,"label"); |
| 3807 | (void) SetImageProperty(preview_image,"label",label); |
| 3808 | AppendImageToList(&images,preview_image); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3809 | proceed=SetImageProgress(image,PreviewImageTag,(MagickOffsetType) i, |
| 3810 | NumberTiles); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3811 | if (proceed == MagickFalse) |
| 3812 | break; |
| 3813 | } |
| 3814 | if (images == (Image *) NULL) |
| 3815 | { |
| 3816 | preview_info=DestroyImageInfo(preview_info); |
| 3817 | return((Image *) NULL); |
| 3818 | } |
| 3819 | /* |
| 3820 | Create the montage. |
| 3821 | */ |
| 3822 | montage_info=CloneMontageInfo(preview_info,(MontageInfo *) NULL); |
| 3823 | (void) CopyMagickString(montage_info->filename,image->filename,MaxTextExtent); |
| 3824 | montage_info->shadow=MagickTrue; |
| 3825 | (void) CloneString(&montage_info->tile,"3x3"); |
| 3826 | (void) CloneString(&montage_info->geometry,DefaultPreviewGeometry); |
| 3827 | (void) CloneString(&montage_info->frame,DefaultTileFrame); |
| 3828 | montage_image=MontageImages(images,montage_info,exception); |
| 3829 | montage_info=DestroyMontageInfo(montage_info); |
| 3830 | images=DestroyImageList(images); |
| 3831 | if (montage_image == (Image *) NULL) |
| 3832 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 3833 | if (montage_image->montage != (char *) NULL) |
| 3834 | { |
| 3835 | /* |
| 3836 | Free image directory. |
| 3837 | */ |
| 3838 | montage_image->montage=(char *) RelinquishMagickMemory( |
| 3839 | montage_image->montage); |
| 3840 | if (image->directory != (char *) NULL) |
| 3841 | montage_image->directory=(char *) RelinquishMagickMemory( |
| 3842 | montage_image->directory); |
| 3843 | } |
| 3844 | preview_info=DestroyImageInfo(preview_info); |
| 3845 | return(montage_image); |
| 3846 | } |
| 3847 | |
| 3848 | /* |
| 3849 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3850 | % % |
| 3851 | % % |
| 3852 | % % |
| 3853 | % R a d i a l B l u r I m a g e % |
| 3854 | % % |
| 3855 | % % |
| 3856 | % % |
| 3857 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3858 | % |
| 3859 | % RadialBlurImage() applies a radial blur to the image. |
| 3860 | % |
| 3861 | % Andrew Protano contributed this effect. |
| 3862 | % |
| 3863 | % The format of the RadialBlurImage method is: |
| 3864 | % |
| 3865 | % Image *RadialBlurImage(const Image *image,const double angle, |
| 3866 | % ExceptionInfo *exception) |
| 3867 | % Image *RadialBlurImageChannel(const Image *image,const ChannelType channel, |
| 3868 | % const double angle,ExceptionInfo *exception) |
| 3869 | % |
| 3870 | % A description of each parameter follows: |
| 3871 | % |
| 3872 | % o image: the image. |
| 3873 | % |
| 3874 | % o channel: the channel type. |
| 3875 | % |
| 3876 | % o angle: the angle of the radial blur. |
| 3877 | % |
| 3878 | % o exception: return any errors or warnings in this structure. |
| 3879 | % |
| 3880 | */ |
| 3881 | |
| 3882 | MagickExport Image *RadialBlurImage(const Image *image,const double angle, |
| 3883 | ExceptionInfo *exception) |
| 3884 | { |
| 3885 | Image |
| 3886 | *blur_image; |
| 3887 | |
| 3888 | blur_image=RadialBlurImageChannel(image,DefaultChannels,angle,exception); |
| 3889 | return(blur_image); |
| 3890 | } |
| 3891 | |
| 3892 | MagickExport Image *RadialBlurImageChannel(const Image *image, |
| 3893 | const ChannelType channel,const double angle,ExceptionInfo *exception) |
| 3894 | { |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 3895 | CacheView |
| 3896 | *blur_view, |
| 3897 | *image_view; |
| 3898 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3899 | Image |
| 3900 | *blur_image; |
| 3901 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3902 | MagickBooleanType |
| 3903 | status; |
| 3904 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3905 | MagickOffsetType |
| 3906 | progress; |
| 3907 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3908 | MagickPixelPacket |
cristy | ddd8220 | 2009-11-03 20:14:50 +0000 | [diff] [blame] | 3909 | bias; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3910 | |
| 3911 | MagickRealType |
| 3912 | blur_radius, |
| 3913 | *cos_theta, |
| 3914 | offset, |
| 3915 | *sin_theta, |
| 3916 | theta; |
| 3917 | |
| 3918 | PointInfo |
| 3919 | blur_center; |
| 3920 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3921 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3922 | i; |
| 3923 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3924 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3925 | n; |
| 3926 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3927 | ssize_t |
| 3928 | y; |
| 3929 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3930 | /* |
| 3931 | Allocate blur image. |
| 3932 | */ |
| 3933 | assert(image != (Image *) NULL); |
| 3934 | assert(image->signature == MagickSignature); |
| 3935 | if (image->debug != MagickFalse) |
| 3936 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 3937 | assert(exception != (ExceptionInfo *) NULL); |
| 3938 | assert(exception->signature == MagickSignature); |
| 3939 | blur_image=CloneImage(image,0,0,MagickTrue,exception); |
| 3940 | if (blur_image == (Image *) NULL) |
| 3941 | return((Image *) NULL); |
| 3942 | if (SetImageStorageClass(blur_image,DirectClass) == MagickFalse) |
| 3943 | { |
| 3944 | InheritException(exception,&blur_image->exception); |
| 3945 | blur_image=DestroyImage(blur_image); |
| 3946 | return((Image *) NULL); |
| 3947 | } |
| 3948 | blur_center.x=(double) image->columns/2.0; |
| 3949 | blur_center.y=(double) image->rows/2.0; |
| 3950 | blur_radius=hypot(blur_center.x,blur_center.y); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3951 | n=(size_t) fabs(4.0*DegreesToRadians(angle)*sqrt((double) blur_radius)+ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3952 | 2UL); |
| 3953 | theta=DegreesToRadians(angle)/(MagickRealType) (n-1); |
| 3954 | cos_theta=(MagickRealType *) AcquireQuantumMemory((size_t) n, |
| 3955 | sizeof(*cos_theta)); |
| 3956 | sin_theta=(MagickRealType *) AcquireQuantumMemory((size_t) n, |
| 3957 | sizeof(*sin_theta)); |
| 3958 | if ((cos_theta == (MagickRealType *) NULL) || |
| 3959 | (sin_theta == (MagickRealType *) NULL)) |
| 3960 | { |
| 3961 | blur_image=DestroyImage(blur_image); |
| 3962 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 3963 | } |
| 3964 | offset=theta*(MagickRealType) (n-1)/2.0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3965 | for (i=0; i < (ssize_t) n; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3966 | { |
| 3967 | cos_theta[i]=cos((double) (theta*i-offset)); |
| 3968 | sin_theta[i]=sin((double) (theta*i-offset)); |
| 3969 | } |
| 3970 | /* |
| 3971 | Radial blur image. |
| 3972 | */ |
| 3973 | status=MagickTrue; |
| 3974 | progress=0; |
cristy | ddd8220 | 2009-11-03 20:14:50 +0000 | [diff] [blame] | 3975 | GetMagickPixelPacket(image,&bias); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3976 | image_view=AcquireCacheView(image); |
| 3977 | blur_view=AcquireCacheView(blur_image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 3978 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 3979 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3980 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3981 | for (y=0; y < (ssize_t) blur_image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3982 | { |
| 3983 | register const IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 3984 | *restrict indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3985 | |
| 3986 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 3987 | *restrict blur_indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3988 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 3989 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3990 | x; |
| 3991 | |
| 3992 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 3993 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3994 | |
| 3995 | if (status == MagickFalse) |
| 3996 | continue; |
| 3997 | q=GetCacheViewAuthenticPixels(blur_view,0,y,blur_image->columns,1, |
| 3998 | exception); |
| 3999 | if (q == (PixelPacket *) NULL) |
| 4000 | { |
| 4001 | status=MagickFalse; |
| 4002 | continue; |
| 4003 | } |
| 4004 | blur_indexes=GetCacheViewAuthenticIndexQueue(blur_view); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4005 | for (x=0; x < (ssize_t) blur_image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4006 | { |
| 4007 | MagickPixelPacket |
| 4008 | qixel; |
| 4009 | |
| 4010 | MagickRealType |
| 4011 | normalize, |
| 4012 | radius; |
| 4013 | |
| 4014 | PixelPacket |
| 4015 | pixel; |
| 4016 | |
| 4017 | PointInfo |
| 4018 | center; |
| 4019 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4020 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4021 | i; |
| 4022 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4023 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4024 | step; |
| 4025 | |
| 4026 | center.x=(double) x-blur_center.x; |
| 4027 | center.y=(double) y-blur_center.y; |
| 4028 | radius=hypot((double) center.x,center.y); |
| 4029 | if (radius == 0) |
| 4030 | step=1; |
| 4031 | else |
| 4032 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4033 | step=(size_t) (blur_radius/radius); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4034 | if (step == 0) |
| 4035 | step=1; |
| 4036 | else |
| 4037 | if (step >= n) |
| 4038 | step=n-1; |
| 4039 | } |
| 4040 | normalize=0.0; |
cristy | ddd8220 | 2009-11-03 20:14:50 +0000 | [diff] [blame] | 4041 | qixel=bias; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4042 | if (((channel & OpacityChannel) == 0) || (image->matte == MagickFalse)) |
| 4043 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4044 | for (i=0; i < (ssize_t) n; i+=step) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4045 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4046 | (void) GetOneCacheViewVirtualPixel(image_view,(ssize_t) (blur_center.x+ |
| 4047 | center.x*cos_theta[i]-center.y*sin_theta[i]+0.5),(ssize_t) ( |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4048 | blur_center.y+center.x*sin_theta[i]+center.y*cos_theta[i]+0.5), |
| 4049 | &pixel,exception); |
| 4050 | qixel.red+=pixel.red; |
| 4051 | qixel.green+=pixel.green; |
| 4052 | qixel.blue+=pixel.blue; |
| 4053 | qixel.opacity+=pixel.opacity; |
| 4054 | if (image->colorspace == CMYKColorspace) |
| 4055 | { |
| 4056 | indexes=GetCacheViewVirtualIndexQueue(image_view); |
| 4057 | qixel.index+=(*indexes); |
| 4058 | } |
| 4059 | normalize+=1.0; |
| 4060 | } |
| 4061 | normalize=1.0/(fabs((double) normalize) <= MagickEpsilon ? 1.0 : |
| 4062 | normalize); |
| 4063 | if ((channel & RedChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 4064 | q->red=ClampToQuantum(normalize*qixel.red); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4065 | if ((channel & GreenChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 4066 | q->green=ClampToQuantum(normalize*qixel.green); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4067 | if ((channel & BlueChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 4068 | q->blue=ClampToQuantum(normalize*qixel.blue); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4069 | if ((channel & OpacityChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 4070 | q->opacity=ClampToQuantum(normalize*qixel.opacity); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4071 | if (((channel & IndexChannel) != 0) && |
| 4072 | (image->colorspace == CMYKColorspace)) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 4073 | blur_indexes[x]=(IndexPacket) ClampToQuantum(normalize*qixel.index); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4074 | } |
| 4075 | else |
| 4076 | { |
| 4077 | MagickRealType |
| 4078 | alpha, |
| 4079 | gamma; |
| 4080 | |
| 4081 | alpha=1.0; |
| 4082 | gamma=0.0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4083 | for (i=0; i < (ssize_t) n; i+=step) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4084 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4085 | (void) GetOneCacheViewVirtualPixel(image_view,(ssize_t) (blur_center.x+ |
| 4086 | center.x*cos_theta[i]-center.y*sin_theta[i]+0.5),(ssize_t) ( |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4087 | blur_center.y+center.x*sin_theta[i]+center.y*cos_theta[i]+0.5), |
| 4088 | &pixel,exception); |
cristy | 46f0820 | 2010-01-10 04:04:21 +0000 | [diff] [blame] | 4089 | alpha=(MagickRealType) (QuantumScale* |
| 4090 | GetAlphaPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4091 | qixel.red+=alpha*pixel.red; |
| 4092 | qixel.green+=alpha*pixel.green; |
| 4093 | qixel.blue+=alpha*pixel.blue; |
| 4094 | qixel.opacity+=pixel.opacity; |
| 4095 | if (image->colorspace == CMYKColorspace) |
| 4096 | { |
| 4097 | indexes=GetCacheViewVirtualIndexQueue(image_view); |
| 4098 | qixel.index+=alpha*(*indexes); |
| 4099 | } |
| 4100 | gamma+=alpha; |
| 4101 | normalize+=1.0; |
| 4102 | } |
| 4103 | gamma=1.0/(fabs((double) gamma) <= MagickEpsilon ? 1.0 : gamma); |
| 4104 | normalize=1.0/(fabs((double) normalize) <= MagickEpsilon ? 1.0 : |
| 4105 | normalize); |
| 4106 | if ((channel & RedChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 4107 | q->red=ClampToQuantum(gamma*qixel.red); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4108 | if ((channel & GreenChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 4109 | q->green=ClampToQuantum(gamma*qixel.green); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4110 | if ((channel & BlueChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 4111 | q->blue=ClampToQuantum(gamma*qixel.blue); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4112 | if ((channel & OpacityChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 4113 | q->opacity=ClampToQuantum(normalize*qixel.opacity); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4114 | if (((channel & IndexChannel) != 0) && |
| 4115 | (image->colorspace == CMYKColorspace)) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 4116 | blur_indexes[x]=(IndexPacket) ClampToQuantum(gamma*qixel.index); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4117 | } |
| 4118 | q++; |
| 4119 | } |
| 4120 | if (SyncCacheViewAuthenticPixels(blur_view,exception) == MagickFalse) |
| 4121 | status=MagickFalse; |
| 4122 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 4123 | { |
| 4124 | MagickBooleanType |
| 4125 | proceed; |
| 4126 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 4127 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4128 | #pragma omp critical (MagickCore_RadialBlurImageChannel) |
| 4129 | #endif |
| 4130 | proceed=SetImageProgress(image,BlurImageTag,progress++,image->rows); |
| 4131 | if (proceed == MagickFalse) |
| 4132 | status=MagickFalse; |
| 4133 | } |
| 4134 | } |
| 4135 | blur_view=DestroyCacheView(blur_view); |
| 4136 | image_view=DestroyCacheView(image_view); |
| 4137 | cos_theta=(MagickRealType *) RelinquishMagickMemory(cos_theta); |
| 4138 | sin_theta=(MagickRealType *) RelinquishMagickMemory(sin_theta); |
| 4139 | if (status == MagickFalse) |
| 4140 | blur_image=DestroyImage(blur_image); |
| 4141 | return(blur_image); |
| 4142 | } |
| 4143 | |
| 4144 | /* |
| 4145 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 4146 | % % |
| 4147 | % % |
| 4148 | % % |
| 4149 | % R e d u c e N o i s e I m a g e % |
| 4150 | % % |
| 4151 | % % |
| 4152 | % % |
| 4153 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 4154 | % |
| 4155 | % ReduceNoiseImage() smooths the contours of an image while still preserving |
| 4156 | % edge information. The algorithm works by replacing each pixel with its |
| 4157 | % neighbor closest in value. A neighbor is defined by radius. Use a radius |
| 4158 | % of 0 and ReduceNoise() selects a suitable radius for you. |
| 4159 | % |
| 4160 | % The format of the ReduceNoiseImage method is: |
| 4161 | % |
| 4162 | % Image *ReduceNoiseImage(const Image *image,const double radius, |
| 4163 | % ExceptionInfo *exception) |
| 4164 | % |
| 4165 | % A description of each parameter follows: |
| 4166 | % |
| 4167 | % o image: the image. |
| 4168 | % |
| 4169 | % o radius: the radius of the pixel neighborhood. |
| 4170 | % |
| 4171 | % o exception: return any errors or warnings in this structure. |
| 4172 | % |
| 4173 | */ |
| 4174 | |
| 4175 | static MagickPixelPacket GetNonpeakMedianPixelList(MedianPixelList *pixel_list) |
| 4176 | { |
| 4177 | MagickPixelPacket |
| 4178 | pixel; |
| 4179 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4180 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4181 | channel; |
| 4182 | |
| 4183 | register MedianSkipList |
| 4184 | *list; |
| 4185 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4186 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4187 | center, |
| 4188 | color, |
| 4189 | count, |
| 4190 | previous, |
| 4191 | next; |
| 4192 | |
| 4193 | unsigned short |
| 4194 | channels[5]; |
| 4195 | |
| 4196 | /* |
| 4197 | Finds the median value for each of the color. |
| 4198 | */ |
| 4199 | center=pixel_list->center; |
| 4200 | for (channel=0; channel < 5; channel++) |
| 4201 | { |
| 4202 | list=pixel_list->lists+channel; |
| 4203 | color=65536UL; |
| 4204 | next=list->nodes[color].next[0]; |
| 4205 | count=0; |
| 4206 | do |
| 4207 | { |
| 4208 | previous=color; |
| 4209 | color=next; |
| 4210 | next=list->nodes[color].next[0]; |
| 4211 | count+=list->nodes[color].count; |
| 4212 | } |
| 4213 | while (count <= center); |
| 4214 | if ((previous == 65536UL) && (next != 65536UL)) |
| 4215 | color=next; |
| 4216 | else |
| 4217 | if ((previous != 65536UL) && (next == 65536UL)) |
| 4218 | color=previous; |
| 4219 | channels[channel]=(unsigned short) color; |
| 4220 | } |
| 4221 | GetMagickPixelPacket((const Image *) NULL,&pixel); |
| 4222 | pixel.red=(MagickRealType) ScaleShortToQuantum(channels[0]); |
| 4223 | pixel.green=(MagickRealType) ScaleShortToQuantum(channels[1]); |
| 4224 | pixel.blue=(MagickRealType) ScaleShortToQuantum(channels[2]); |
| 4225 | pixel.opacity=(MagickRealType) ScaleShortToQuantum(channels[3]); |
| 4226 | pixel.index=(MagickRealType) ScaleShortToQuantum(channels[4]); |
| 4227 | return(pixel); |
| 4228 | } |
| 4229 | |
| 4230 | MagickExport Image *ReduceNoiseImage(const Image *image,const double radius, |
| 4231 | ExceptionInfo *exception) |
| 4232 | { |
| 4233 | #define ReduceNoiseImageTag "ReduceNoise/Image" |
| 4234 | |
cristy | fa11211 | 2010-01-04 17:48:07 +0000 | [diff] [blame] | 4235 | CacheView |
| 4236 | *image_view, |
| 4237 | *noise_view; |
| 4238 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4239 | Image |
| 4240 | *noise_image; |
| 4241 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4242 | MagickBooleanType |
| 4243 | status; |
| 4244 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4245 | MagickOffsetType |
| 4246 | progress; |
| 4247 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4248 | MedianPixelList |
cristy | fa11211 | 2010-01-04 17:48:07 +0000 | [diff] [blame] | 4249 | **restrict pixel_list; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4250 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4251 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4252 | width; |
| 4253 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4254 | ssize_t |
| 4255 | y; |
| 4256 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4257 | /* |
| 4258 | Initialize noise image attributes. |
| 4259 | */ |
| 4260 | assert(image != (Image *) NULL); |
| 4261 | assert(image->signature == MagickSignature); |
| 4262 | if (image->debug != MagickFalse) |
| 4263 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 4264 | assert(exception != (ExceptionInfo *) NULL); |
| 4265 | assert(exception->signature == MagickSignature); |
| 4266 | width=GetOptimalKernelWidth2D(radius,0.5); |
| 4267 | if ((image->columns < width) || (image->rows < width)) |
| 4268 | ThrowImageException(OptionError,"ImageSmallerThanKernelRadius"); |
| 4269 | noise_image=CloneImage(image,image->columns,image->rows,MagickTrue, |
| 4270 | exception); |
| 4271 | if (noise_image == (Image *) NULL) |
| 4272 | return((Image *) NULL); |
| 4273 | if (SetImageStorageClass(noise_image,DirectClass) == MagickFalse) |
| 4274 | { |
| 4275 | InheritException(exception,&noise_image->exception); |
| 4276 | noise_image=DestroyImage(noise_image); |
| 4277 | return((Image *) NULL); |
| 4278 | } |
| 4279 | pixel_list=AcquireMedianPixelListThreadSet(width); |
| 4280 | if (pixel_list == (MedianPixelList **) NULL) |
| 4281 | { |
| 4282 | noise_image=DestroyImage(noise_image); |
| 4283 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 4284 | } |
| 4285 | /* |
| 4286 | Reduce noise image. |
| 4287 | */ |
| 4288 | status=MagickTrue; |
| 4289 | progress=0; |
| 4290 | image_view=AcquireCacheView(image); |
| 4291 | noise_view=AcquireCacheView(noise_image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 4292 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 4293 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4294 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4295 | for (y=0; y < (ssize_t) noise_image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4296 | { |
| 4297 | register const IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 4298 | *restrict indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4299 | |
| 4300 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 4301 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4302 | |
| 4303 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 4304 | *restrict noise_indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4305 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4306 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4307 | id, |
| 4308 | x; |
| 4309 | |
| 4310 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 4311 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4312 | |
| 4313 | if (status == MagickFalse) |
| 4314 | continue; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4315 | p=GetCacheViewVirtualPixels(image_view,-((ssize_t) width/2L),y-(ssize_t) (width/ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4316 | 2L),image->columns+width,width,exception); |
| 4317 | q=QueueCacheViewAuthenticPixels(noise_view,0,y,noise_image->columns,1, |
| 4318 | exception); |
| 4319 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 4320 | { |
| 4321 | status=MagickFalse; |
| 4322 | continue; |
| 4323 | } |
| 4324 | indexes=GetCacheViewVirtualIndexQueue(image_view); |
| 4325 | noise_indexes=GetCacheViewAuthenticIndexQueue(noise_view); |
| 4326 | id=GetOpenMPThreadId(); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4327 | for (x=0; x < (ssize_t) noise_image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4328 | { |
| 4329 | MagickPixelPacket |
| 4330 | pixel; |
| 4331 | |
| 4332 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 4333 | *restrict r; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4334 | |
| 4335 | register const IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 4336 | *restrict s; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4337 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4338 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4339 | u, |
| 4340 | v; |
| 4341 | |
| 4342 | r=p; |
| 4343 | s=indexes+x; |
| 4344 | ResetMedianPixelList(pixel_list[id]); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4345 | for (v=0; v < (ssize_t) width; v++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4346 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4347 | for (u=0; u < (ssize_t) width; u++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4348 | InsertMedianPixelList(image,r+u,s+u,pixel_list[id]); |
| 4349 | r+=image->columns+width; |
| 4350 | s+=image->columns+width; |
| 4351 | } |
| 4352 | pixel=GetNonpeakMedianPixelList(pixel_list[id]); |
| 4353 | SetPixelPacket(noise_image,&pixel,q,noise_indexes+x); |
| 4354 | p++; |
| 4355 | q++; |
| 4356 | } |
| 4357 | if (SyncCacheViewAuthenticPixels(noise_view,exception) == MagickFalse) |
| 4358 | status=MagickFalse; |
| 4359 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 4360 | { |
| 4361 | MagickBooleanType |
| 4362 | proceed; |
| 4363 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 4364 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4365 | #pragma omp critical (MagickCore_ReduceNoiseImage) |
| 4366 | #endif |
| 4367 | proceed=SetImageProgress(image,ReduceNoiseImageTag,progress++, |
| 4368 | image->rows); |
| 4369 | if (proceed == MagickFalse) |
| 4370 | status=MagickFalse; |
| 4371 | } |
| 4372 | } |
| 4373 | noise_view=DestroyCacheView(noise_view); |
| 4374 | image_view=DestroyCacheView(image_view); |
| 4375 | pixel_list=DestroyMedianPixelListThreadSet(pixel_list); |
| 4376 | return(noise_image); |
| 4377 | } |
| 4378 | |
| 4379 | /* |
| 4380 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 4381 | % % |
| 4382 | % % |
| 4383 | % % |
| 4384 | % S e l e c t i v e B l u r I m a g e % |
| 4385 | % % |
| 4386 | % % |
| 4387 | % % |
| 4388 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 4389 | % |
| 4390 | % SelectiveBlurImage() selectively blur pixels within a contrast threshold. |
| 4391 | % It is similar to the unsharpen mask that sharpens everything with contrast |
| 4392 | % above a certain threshold. |
| 4393 | % |
| 4394 | % The format of the SelectiveBlurImage method is: |
| 4395 | % |
| 4396 | % Image *SelectiveBlurImage(const Image *image,const double radius, |
| 4397 | % const double sigma,const double threshold,ExceptionInfo *exception) |
| 4398 | % Image *SelectiveBlurImageChannel(const Image *image, |
| 4399 | % const ChannelType channel,const double radius,const double sigma, |
| 4400 | % const double threshold,ExceptionInfo *exception) |
| 4401 | % |
| 4402 | % A description of each parameter follows: |
| 4403 | % |
| 4404 | % o image: the image. |
| 4405 | % |
| 4406 | % o channel: the channel type. |
| 4407 | % |
| 4408 | % o radius: the radius of the Gaussian, in pixels, not counting the center |
| 4409 | % pixel. |
| 4410 | % |
| 4411 | % o sigma: the standard deviation of the Gaussian, in pixels. |
| 4412 | % |
| 4413 | % o threshold: only pixels within this contrast threshold are included |
| 4414 | % in the blur operation. |
| 4415 | % |
| 4416 | % o exception: return any errors or warnings in this structure. |
| 4417 | % |
| 4418 | */ |
| 4419 | |
| 4420 | static inline MagickBooleanType SelectiveContrast(const PixelPacket *p, |
| 4421 | const PixelPacket *q,const double threshold) |
| 4422 | { |
| 4423 | if (fabs(PixelIntensity(p)-PixelIntensity(q)) < threshold) |
| 4424 | return(MagickTrue); |
| 4425 | return(MagickFalse); |
| 4426 | } |
| 4427 | |
| 4428 | MagickExport Image *SelectiveBlurImage(const Image *image,const double radius, |
| 4429 | const double sigma,const double threshold,ExceptionInfo *exception) |
| 4430 | { |
| 4431 | Image |
| 4432 | *blur_image; |
| 4433 | |
| 4434 | blur_image=SelectiveBlurImageChannel(image,DefaultChannels,radius,sigma, |
| 4435 | threshold,exception); |
| 4436 | return(blur_image); |
| 4437 | } |
| 4438 | |
| 4439 | MagickExport Image *SelectiveBlurImageChannel(const Image *image, |
| 4440 | const ChannelType channel,const double radius,const double sigma, |
| 4441 | const double threshold,ExceptionInfo *exception) |
| 4442 | { |
| 4443 | #define SelectiveBlurImageTag "SelectiveBlur/Image" |
| 4444 | |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 4445 | CacheView |
| 4446 | *blur_view, |
| 4447 | *image_view; |
| 4448 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4449 | double |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4450 | *kernel; |
| 4451 | |
| 4452 | Image |
| 4453 | *blur_image; |
| 4454 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4455 | MagickBooleanType |
| 4456 | status; |
| 4457 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4458 | MagickOffsetType |
| 4459 | progress; |
| 4460 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4461 | MagickPixelPacket |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4462 | bias; |
| 4463 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4464 | register ssize_t |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 4465 | i; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4466 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4467 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4468 | width; |
| 4469 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4470 | ssize_t |
| 4471 | j, |
| 4472 | u, |
| 4473 | v, |
| 4474 | y; |
| 4475 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4476 | /* |
| 4477 | Initialize blur image attributes. |
| 4478 | */ |
| 4479 | assert(image != (Image *) NULL); |
| 4480 | assert(image->signature == MagickSignature); |
| 4481 | if (image->debug != MagickFalse) |
| 4482 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 4483 | assert(exception != (ExceptionInfo *) NULL); |
| 4484 | assert(exception->signature == MagickSignature); |
| 4485 | width=GetOptimalKernelWidth1D(radius,sigma); |
| 4486 | kernel=(double *) AcquireQuantumMemory((size_t) width,width*sizeof(*kernel)); |
| 4487 | if (kernel == (double *) NULL) |
| 4488 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4489 | j=(ssize_t) width/2; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4490 | i=0; |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 4491 | for (v=(-j); v <= j; v++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4492 | { |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 4493 | for (u=(-j); u <= j; u++) |
| 4494 | kernel[i++]=exp(-((double) u*u+v*v)/(2.0*MagickSigma*MagickSigma))/ |
| 4495 | (2.0*MagickPI*MagickSigma*MagickSigma); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4496 | } |
| 4497 | if (image->debug != MagickFalse) |
| 4498 | { |
| 4499 | char |
| 4500 | format[MaxTextExtent], |
| 4501 | *message; |
| 4502 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4503 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4504 | u, |
| 4505 | v; |
| 4506 | |
| 4507 | register const double |
| 4508 | *k; |
| 4509 | |
| 4510 | (void) LogMagickEvent(TransformEvent,GetMagickModule(), |
| 4511 | " SelectiveBlurImage with %ldx%ld kernel:",width,width); |
| 4512 | message=AcquireString(""); |
| 4513 | k=kernel; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4514 | for (v=0; v < (ssize_t) width; v++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4515 | { |
| 4516 | *message='\0'; |
| 4517 | (void) FormatMagickString(format,MaxTextExtent,"%ld: ",v); |
| 4518 | (void) ConcatenateString(&message,format); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4519 | for (u=0; u < (ssize_t) width; u++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4520 | { |
| 4521 | (void) FormatMagickString(format,MaxTextExtent,"%+f ",*k++); |
| 4522 | (void) ConcatenateString(&message,format); |
| 4523 | } |
| 4524 | (void) LogMagickEvent(TransformEvent,GetMagickModule(),"%s",message); |
| 4525 | } |
| 4526 | message=DestroyString(message); |
| 4527 | } |
| 4528 | blur_image=CloneImage(image,0,0,MagickTrue,exception); |
| 4529 | if (blur_image == (Image *) NULL) |
| 4530 | return((Image *) NULL); |
| 4531 | if (SetImageStorageClass(blur_image,DirectClass) == MagickFalse) |
| 4532 | { |
| 4533 | InheritException(exception,&blur_image->exception); |
| 4534 | blur_image=DestroyImage(blur_image); |
| 4535 | return((Image *) NULL); |
| 4536 | } |
| 4537 | /* |
| 4538 | Threshold blur image. |
| 4539 | */ |
| 4540 | status=MagickTrue; |
| 4541 | progress=0; |
cristy | ddd8220 | 2009-11-03 20:14:50 +0000 | [diff] [blame] | 4542 | GetMagickPixelPacket(image,&bias); |
| 4543 | SetMagickPixelPacketBias(image,&bias); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4544 | image_view=AcquireCacheView(image); |
| 4545 | blur_view=AcquireCacheView(blur_image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 4546 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 4547 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4548 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4549 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4550 | { |
| 4551 | MagickBooleanType |
| 4552 | sync; |
| 4553 | |
| 4554 | MagickRealType |
| 4555 | gamma; |
| 4556 | |
| 4557 | register const IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 4558 | *restrict indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4559 | |
| 4560 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 4561 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4562 | |
| 4563 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 4564 | *restrict blur_indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4565 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4566 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4567 | x; |
| 4568 | |
| 4569 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 4570 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4571 | |
| 4572 | if (status == MagickFalse) |
| 4573 | continue; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4574 | p=GetCacheViewVirtualPixels(image_view,-((ssize_t) width/2L),y-(ssize_t) (width/ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4575 | 2L),image->columns+width,width,exception); |
| 4576 | q=GetCacheViewAuthenticPixels(blur_view,0,y,blur_image->columns,1, |
| 4577 | exception); |
| 4578 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 4579 | { |
| 4580 | status=MagickFalse; |
| 4581 | continue; |
| 4582 | } |
| 4583 | indexes=GetCacheViewVirtualIndexQueue(image_view); |
| 4584 | blur_indexes=GetCacheViewAuthenticIndexQueue(blur_view); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4585 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4586 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4587 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4588 | j, |
| 4589 | v; |
| 4590 | |
| 4591 | MagickPixelPacket |
| 4592 | pixel; |
| 4593 | |
| 4594 | register const double |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 4595 | *restrict k; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4596 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4597 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4598 | u; |
| 4599 | |
cristy | ddd8220 | 2009-11-03 20:14:50 +0000 | [diff] [blame] | 4600 | pixel=bias; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4601 | k=kernel; |
| 4602 | gamma=0.0; |
| 4603 | j=0; |
| 4604 | if (((channel & OpacityChannel) == 0) || (image->matte == MagickFalse)) |
| 4605 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4606 | for (v=0; v < (ssize_t) width; v++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4607 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4608 | for (u=0; u < (ssize_t) width; u++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4609 | { |
| 4610 | if (SelectiveContrast(p+u+j,q,threshold) != MagickFalse) |
| 4611 | { |
| 4612 | pixel.red+=(*k)*(p+u+j)->red; |
| 4613 | pixel.green+=(*k)*(p+u+j)->green; |
| 4614 | pixel.blue+=(*k)*(p+u+j)->blue; |
| 4615 | gamma+=(*k); |
| 4616 | k++; |
| 4617 | } |
| 4618 | } |
| 4619 | j+=image->columns+width; |
| 4620 | } |
| 4621 | if (gamma != 0.0) |
| 4622 | { |
| 4623 | gamma=1.0/(fabs((double) gamma) <= MagickEpsilon ? 1.0 : gamma); |
| 4624 | if ((channel & RedChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 4625 | q->red=ClampToQuantum(gamma*GetRedPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4626 | if ((channel & GreenChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 4627 | q->green=ClampToQuantum(gamma*GetGreenPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4628 | if ((channel & BlueChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 4629 | q->blue=ClampToQuantum(gamma*GetBluePixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4630 | } |
| 4631 | if ((channel & OpacityChannel) != 0) |
| 4632 | { |
| 4633 | gamma=0.0; |
| 4634 | j=0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4635 | for (v=0; v < (ssize_t) width; v++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4636 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4637 | for (u=0; u < (ssize_t) width; u++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4638 | { |
| 4639 | if (SelectiveContrast(p+u+j,q,threshold) != MagickFalse) |
| 4640 | { |
| 4641 | pixel.opacity+=(*k)*(p+u+j)->opacity; |
| 4642 | gamma+=(*k); |
| 4643 | k++; |
| 4644 | } |
| 4645 | } |
| 4646 | j+=image->columns+width; |
| 4647 | } |
| 4648 | if (gamma != 0.0) |
| 4649 | { |
| 4650 | gamma=1.0/(fabs((double) gamma) <= MagickEpsilon ? 1.0 : |
| 4651 | gamma); |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 4652 | SetOpacityPixelComponent(q,ClampToQuantum(gamma* |
| 4653 | GetOpacityPixelComponent(&pixel))); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4654 | } |
| 4655 | } |
| 4656 | if (((channel & IndexChannel) != 0) && |
| 4657 | (image->colorspace == CMYKColorspace)) |
| 4658 | { |
| 4659 | gamma=0.0; |
| 4660 | j=0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4661 | for (v=0; v < (ssize_t) width; v++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4662 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4663 | for (u=0; u < (ssize_t) width; u++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4664 | { |
| 4665 | if (SelectiveContrast(p+u+j,q,threshold) != MagickFalse) |
| 4666 | { |
| 4667 | pixel.index+=(*k)*indexes[x+u+j]; |
| 4668 | gamma+=(*k); |
| 4669 | k++; |
| 4670 | } |
| 4671 | } |
| 4672 | j+=image->columns+width; |
| 4673 | } |
| 4674 | if (gamma != 0.0) |
| 4675 | { |
| 4676 | gamma=1.0/(fabs((double) gamma) <= MagickEpsilon ? 1.0 : |
| 4677 | gamma); |
cristy | 6db4812 | 2010-01-11 00:18:07 +0000 | [diff] [blame] | 4678 | blur_indexes[x]=ClampToQuantum(gamma* |
| 4679 | GetIndexPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4680 | } |
| 4681 | } |
| 4682 | } |
| 4683 | else |
| 4684 | { |
| 4685 | MagickRealType |
| 4686 | alpha; |
| 4687 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4688 | for (v=0; v < (ssize_t) width; v++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4689 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4690 | for (u=0; u < (ssize_t) width; u++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4691 | { |
| 4692 | if (SelectiveContrast(p+u+j,q,threshold) != MagickFalse) |
| 4693 | { |
cristy | 46f0820 | 2010-01-10 04:04:21 +0000 | [diff] [blame] | 4694 | alpha=(MagickRealType) (QuantumScale* |
| 4695 | GetAlphaPixelComponent(p+u+j)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4696 | pixel.red+=(*k)*alpha*(p+u+j)->red; |
| 4697 | pixel.green+=(*k)*alpha*(p+u+j)->green; |
| 4698 | pixel.blue+=(*k)*alpha*(p+u+j)->blue; |
| 4699 | pixel.opacity+=(*k)*(p+u+j)->opacity; |
| 4700 | gamma+=(*k)*alpha; |
| 4701 | k++; |
| 4702 | } |
| 4703 | } |
| 4704 | j+=image->columns+width; |
| 4705 | } |
| 4706 | if (gamma != 0.0) |
| 4707 | { |
| 4708 | gamma=1.0/(fabs((double) gamma) <= MagickEpsilon ? 1.0 : gamma); |
| 4709 | if ((channel & RedChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 4710 | q->red=ClampToQuantum(gamma*GetRedPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4711 | if ((channel & GreenChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 4712 | q->green=ClampToQuantum(gamma*GetGreenPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4713 | if ((channel & BlueChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 4714 | q->blue=ClampToQuantum(gamma*GetBluePixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4715 | } |
| 4716 | if ((channel & OpacityChannel) != 0) |
| 4717 | { |
| 4718 | gamma=0.0; |
| 4719 | j=0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4720 | for (v=0; v < (ssize_t) width; v++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4721 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4722 | for (u=0; u < (ssize_t) width; u++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4723 | { |
| 4724 | if (SelectiveContrast(p+u+j,q,threshold) != MagickFalse) |
| 4725 | { |
| 4726 | pixel.opacity+=(*k)*(p+u+j)->opacity; |
| 4727 | gamma+=(*k); |
| 4728 | k++; |
| 4729 | } |
| 4730 | } |
| 4731 | j+=image->columns+width; |
| 4732 | } |
| 4733 | if (gamma != 0.0) |
| 4734 | { |
| 4735 | gamma=1.0/(fabs((double) gamma) <= MagickEpsilon ? 1.0 : |
| 4736 | gamma); |
cristy | 6db4812 | 2010-01-11 00:18:07 +0000 | [diff] [blame] | 4737 | SetOpacityPixelComponent(q, |
| 4738 | ClampOpacityPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4739 | } |
| 4740 | } |
| 4741 | if (((channel & IndexChannel) != 0) && |
| 4742 | (image->colorspace == CMYKColorspace)) |
| 4743 | { |
| 4744 | gamma=0.0; |
| 4745 | j=0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4746 | for (v=0; v < (ssize_t) width; v++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4747 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4748 | for (u=0; u < (ssize_t) width; u++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4749 | { |
| 4750 | if (SelectiveContrast(p+u+j,q,threshold) != MagickFalse) |
| 4751 | { |
cristy | 46f0820 | 2010-01-10 04:04:21 +0000 | [diff] [blame] | 4752 | alpha=(MagickRealType) (QuantumScale* |
| 4753 | GetAlphaPixelComponent(p+u+j)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4754 | pixel.index+=(*k)*alpha*indexes[x+u+j]; |
| 4755 | gamma+=(*k); |
| 4756 | k++; |
| 4757 | } |
| 4758 | } |
| 4759 | j+=image->columns+width; |
| 4760 | } |
| 4761 | if (gamma != 0.0) |
| 4762 | { |
| 4763 | gamma=1.0/(fabs((double) gamma) <= MagickEpsilon ? 1.0 : |
| 4764 | gamma); |
cristy | 6db4812 | 2010-01-11 00:18:07 +0000 | [diff] [blame] | 4765 | blur_indexes[x]=ClampToQuantum(gamma* |
| 4766 | GetIndexPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4767 | } |
| 4768 | } |
| 4769 | } |
| 4770 | p++; |
| 4771 | q++; |
| 4772 | } |
| 4773 | sync=SyncCacheViewAuthenticPixels(blur_view,exception); |
| 4774 | if (sync == MagickFalse) |
| 4775 | status=MagickFalse; |
| 4776 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 4777 | { |
| 4778 | MagickBooleanType |
| 4779 | proceed; |
| 4780 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 4781 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4782 | #pragma omp critical (MagickCore_SelectiveBlurImageChannel) |
| 4783 | #endif |
| 4784 | proceed=SetImageProgress(image,SelectiveBlurImageTag,progress++, |
| 4785 | image->rows); |
| 4786 | if (proceed == MagickFalse) |
| 4787 | status=MagickFalse; |
| 4788 | } |
| 4789 | } |
| 4790 | blur_image->type=image->type; |
| 4791 | blur_view=DestroyCacheView(blur_view); |
| 4792 | image_view=DestroyCacheView(image_view); |
| 4793 | kernel=(double *) RelinquishMagickMemory(kernel); |
| 4794 | if (status == MagickFalse) |
| 4795 | blur_image=DestroyImage(blur_image); |
| 4796 | return(blur_image); |
| 4797 | } |
| 4798 | |
| 4799 | /* |
| 4800 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 4801 | % % |
| 4802 | % % |
| 4803 | % % |
| 4804 | % S h a d e I m a g e % |
| 4805 | % % |
| 4806 | % % |
| 4807 | % % |
| 4808 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 4809 | % |
| 4810 | % ShadeImage() shines a distant light on an image to create a |
| 4811 | % three-dimensional effect. You control the positioning of the light with |
| 4812 | % azimuth and elevation; azimuth is measured in degrees off the x axis |
| 4813 | % and elevation is measured in pixels above the Z axis. |
| 4814 | % |
| 4815 | % The format of the ShadeImage method is: |
| 4816 | % |
| 4817 | % Image *ShadeImage(const Image *image,const MagickBooleanType gray, |
| 4818 | % const double azimuth,const double elevation,ExceptionInfo *exception) |
| 4819 | % |
| 4820 | % A description of each parameter follows: |
| 4821 | % |
| 4822 | % o image: the image. |
| 4823 | % |
| 4824 | % o gray: A value other than zero shades the intensity of each pixel. |
| 4825 | % |
| 4826 | % o azimuth, elevation: Define the light source direction. |
| 4827 | % |
| 4828 | % o exception: return any errors or warnings in this structure. |
| 4829 | % |
| 4830 | */ |
| 4831 | MagickExport Image *ShadeImage(const Image *image,const MagickBooleanType gray, |
| 4832 | const double azimuth,const double elevation,ExceptionInfo *exception) |
| 4833 | { |
| 4834 | #define ShadeImageTag "Shade/Image" |
| 4835 | |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 4836 | CacheView |
| 4837 | *image_view, |
| 4838 | *shade_view; |
| 4839 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4840 | Image |
| 4841 | *shade_image; |
| 4842 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4843 | MagickBooleanType |
| 4844 | status; |
| 4845 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4846 | MagickOffsetType |
| 4847 | progress; |
| 4848 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4849 | PrimaryInfo |
| 4850 | light; |
| 4851 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4852 | ssize_t |
| 4853 | y; |
| 4854 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4855 | /* |
| 4856 | Initialize shaded image attributes. |
| 4857 | */ |
| 4858 | assert(image != (const Image *) NULL); |
| 4859 | assert(image->signature == MagickSignature); |
| 4860 | if (image->debug != MagickFalse) |
| 4861 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 4862 | assert(exception != (ExceptionInfo *) NULL); |
| 4863 | assert(exception->signature == MagickSignature); |
| 4864 | shade_image=CloneImage(image,image->columns,image->rows,MagickTrue,exception); |
| 4865 | if (shade_image == (Image *) NULL) |
| 4866 | return((Image *) NULL); |
| 4867 | if (SetImageStorageClass(shade_image,DirectClass) == MagickFalse) |
| 4868 | { |
| 4869 | InheritException(exception,&shade_image->exception); |
| 4870 | shade_image=DestroyImage(shade_image); |
| 4871 | return((Image *) NULL); |
| 4872 | } |
| 4873 | /* |
| 4874 | Compute the light vector. |
| 4875 | */ |
| 4876 | light.x=(double) QuantumRange*cos(DegreesToRadians(azimuth))* |
| 4877 | cos(DegreesToRadians(elevation)); |
| 4878 | light.y=(double) QuantumRange*sin(DegreesToRadians(azimuth))* |
| 4879 | cos(DegreesToRadians(elevation)); |
| 4880 | light.z=(double) QuantumRange*sin(DegreesToRadians(elevation)); |
| 4881 | /* |
| 4882 | Shade image. |
| 4883 | */ |
| 4884 | status=MagickTrue; |
| 4885 | progress=0; |
| 4886 | image_view=AcquireCacheView(image); |
| 4887 | shade_view=AcquireCacheView(shade_image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 4888 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 4889 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4890 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4891 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4892 | { |
| 4893 | MagickRealType |
| 4894 | distance, |
| 4895 | normal_distance, |
| 4896 | shade; |
| 4897 | |
| 4898 | PrimaryInfo |
| 4899 | normal; |
| 4900 | |
| 4901 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 4902 | *restrict p, |
| 4903 | *restrict s0, |
| 4904 | *restrict s1, |
| 4905 | *restrict s2; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4906 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4907 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4908 | x; |
| 4909 | |
| 4910 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 4911 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4912 | |
| 4913 | if (status == MagickFalse) |
| 4914 | continue; |
| 4915 | p=GetCacheViewVirtualPixels(image_view,-1,y-1,image->columns+2,3,exception); |
| 4916 | q=QueueCacheViewAuthenticPixels(shade_view,0,y,shade_image->columns,1, |
| 4917 | exception); |
| 4918 | if ((p == (PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 4919 | { |
| 4920 | status=MagickFalse; |
| 4921 | continue; |
| 4922 | } |
| 4923 | /* |
| 4924 | Shade this row of pixels. |
| 4925 | */ |
| 4926 | normal.z=2.0*(double) QuantumRange; /* constant Z of surface normal */ |
| 4927 | s0=p+1; |
| 4928 | s1=s0+image->columns+2; |
| 4929 | s2=s1+image->columns+2; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 4930 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4931 | { |
| 4932 | /* |
| 4933 | Determine the surface normal and compute shading. |
| 4934 | */ |
| 4935 | normal.x=(double) (PixelIntensity(s0-1)+PixelIntensity(s1-1)+ |
| 4936 | PixelIntensity(s2-1)-PixelIntensity(s0+1)-PixelIntensity(s1+1)- |
| 4937 | PixelIntensity(s2+1)); |
| 4938 | normal.y=(double) (PixelIntensity(s2-1)+PixelIntensity(s2)+ |
| 4939 | PixelIntensity(s2+1)-PixelIntensity(s0-1)-PixelIntensity(s0)- |
| 4940 | PixelIntensity(s0+1)); |
| 4941 | if ((normal.x == 0.0) && (normal.y == 0.0)) |
| 4942 | shade=light.z; |
| 4943 | else |
| 4944 | { |
| 4945 | shade=0.0; |
| 4946 | distance=normal.x*light.x+normal.y*light.y+normal.z*light.z; |
| 4947 | if (distance > MagickEpsilon) |
| 4948 | { |
| 4949 | normal_distance= |
| 4950 | normal.x*normal.x+normal.y*normal.y+normal.z*normal.z; |
| 4951 | if (normal_distance > (MagickEpsilon*MagickEpsilon)) |
| 4952 | shade=distance/sqrt((double) normal_distance); |
| 4953 | } |
| 4954 | } |
| 4955 | if (gray != MagickFalse) |
| 4956 | { |
| 4957 | q->red=(Quantum) shade; |
| 4958 | q->green=(Quantum) shade; |
| 4959 | q->blue=(Quantum) shade; |
| 4960 | } |
| 4961 | else |
| 4962 | { |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 4963 | q->red=ClampToQuantum(QuantumScale*shade*s1->red); |
| 4964 | q->green=ClampToQuantum(QuantumScale*shade*s1->green); |
| 4965 | q->blue=ClampToQuantum(QuantumScale*shade*s1->blue); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4966 | } |
| 4967 | q->opacity=s1->opacity; |
| 4968 | s0++; |
| 4969 | s1++; |
| 4970 | s2++; |
| 4971 | q++; |
| 4972 | } |
| 4973 | if (SyncCacheViewAuthenticPixels(shade_view,exception) == MagickFalse) |
| 4974 | status=MagickFalse; |
| 4975 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 4976 | { |
| 4977 | MagickBooleanType |
| 4978 | proceed; |
| 4979 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 4980 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4981 | #pragma omp critical (MagickCore_ShadeImage) |
| 4982 | #endif |
| 4983 | proceed=SetImageProgress(image,ShadeImageTag,progress++,image->rows); |
| 4984 | if (proceed == MagickFalse) |
| 4985 | status=MagickFalse; |
| 4986 | } |
| 4987 | } |
| 4988 | shade_view=DestroyCacheView(shade_view); |
| 4989 | image_view=DestroyCacheView(image_view); |
| 4990 | if (status == MagickFalse) |
| 4991 | shade_image=DestroyImage(shade_image); |
| 4992 | return(shade_image); |
| 4993 | } |
| 4994 | |
| 4995 | /* |
| 4996 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 4997 | % % |
| 4998 | % % |
| 4999 | % % |
| 5000 | % S h a r p e n I m a g e % |
| 5001 | % % |
| 5002 | % % |
| 5003 | % % |
| 5004 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 5005 | % |
| 5006 | % SharpenImage() sharpens the image. We convolve the image with a Gaussian |
| 5007 | % operator of the given radius and standard deviation (sigma). For |
| 5008 | % reasonable results, radius should be larger than sigma. Use a radius of 0 |
| 5009 | % and SharpenImage() selects a suitable radius for you. |
| 5010 | % |
| 5011 | % Using a separable kernel would be faster, but the negative weights cancel |
| 5012 | % out on the corners of the kernel producing often undesirable ringing in the |
| 5013 | % filtered result; this can be avoided by using a 2D gaussian shaped image |
| 5014 | % sharpening kernel instead. |
| 5015 | % |
| 5016 | % The format of the SharpenImage method is: |
| 5017 | % |
| 5018 | % Image *SharpenImage(const Image *image,const double radius, |
| 5019 | % const double sigma,ExceptionInfo *exception) |
| 5020 | % Image *SharpenImageChannel(const Image *image,const ChannelType channel, |
| 5021 | % const double radius,const double sigma,ExceptionInfo *exception) |
| 5022 | % |
| 5023 | % A description of each parameter follows: |
| 5024 | % |
| 5025 | % o image: the image. |
| 5026 | % |
| 5027 | % o channel: the channel type. |
| 5028 | % |
| 5029 | % o radius: the radius of the Gaussian, in pixels, not counting the center |
| 5030 | % pixel. |
| 5031 | % |
| 5032 | % o sigma: the standard deviation of the Laplacian, in pixels. |
| 5033 | % |
| 5034 | % o exception: return any errors or warnings in this structure. |
| 5035 | % |
| 5036 | */ |
| 5037 | |
| 5038 | MagickExport Image *SharpenImage(const Image *image,const double radius, |
| 5039 | const double sigma,ExceptionInfo *exception) |
| 5040 | { |
| 5041 | Image |
| 5042 | *sharp_image; |
| 5043 | |
| 5044 | sharp_image=SharpenImageChannel(image,DefaultChannels,radius,sigma,exception); |
| 5045 | return(sharp_image); |
| 5046 | } |
| 5047 | |
| 5048 | MagickExport Image *SharpenImageChannel(const Image *image, |
| 5049 | const ChannelType channel,const double radius,const double sigma, |
| 5050 | ExceptionInfo *exception) |
| 5051 | { |
| 5052 | double |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 5053 | *kernel, |
| 5054 | normalize; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5055 | |
| 5056 | Image |
| 5057 | *sharp_image; |
| 5058 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 5059 | ssize_t |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 5060 | j, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5061 | u, |
| 5062 | v; |
| 5063 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 5064 | register ssize_t |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 5065 | i; |
| 5066 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 5067 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5068 | width; |
| 5069 | |
| 5070 | assert(image != (const Image *) NULL); |
| 5071 | assert(image->signature == MagickSignature); |
| 5072 | if (image->debug != MagickFalse) |
| 5073 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 5074 | assert(exception != (ExceptionInfo *) NULL); |
| 5075 | assert(exception->signature == MagickSignature); |
| 5076 | width=GetOptimalKernelWidth2D(radius,sigma); |
| 5077 | kernel=(double *) AcquireQuantumMemory((size_t) width*width,sizeof(*kernel)); |
| 5078 | if (kernel == (double *) NULL) |
| 5079 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5080 | normalize=0.0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 5081 | j=(ssize_t) width/2; |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 5082 | i=0; |
| 5083 | for (v=(-j); v <= j; v++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5084 | { |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 5085 | for (u=(-j); u <= j; u++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5086 | { |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 5087 | kernel[i]=(-exp(-((double) u*u+v*v)/(2.0*MagickSigma*MagickSigma))/ |
| 5088 | (2.0*MagickPI*MagickSigma*MagickSigma)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5089 | normalize+=kernel[i]; |
| 5090 | i++; |
| 5091 | } |
| 5092 | } |
| 5093 | kernel[i/2]=(double) ((-2.0)*normalize); |
| 5094 | sharp_image=ConvolveImageChannel(image,channel,width,kernel,exception); |
| 5095 | kernel=(double *) RelinquishMagickMemory(kernel); |
| 5096 | return(sharp_image); |
| 5097 | } |
| 5098 | |
| 5099 | /* |
| 5100 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 5101 | % % |
| 5102 | % % |
| 5103 | % % |
| 5104 | % S p r e a d I m a g e % |
| 5105 | % % |
| 5106 | % % |
| 5107 | % % |
| 5108 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 5109 | % |
| 5110 | % SpreadImage() is a special effects method that randomly displaces each |
| 5111 | % pixel in a block defined by the radius parameter. |
| 5112 | % |
| 5113 | % The format of the SpreadImage method is: |
| 5114 | % |
| 5115 | % Image *SpreadImage(const Image *image,const double radius, |
| 5116 | % ExceptionInfo *exception) |
| 5117 | % |
| 5118 | % A description of each parameter follows: |
| 5119 | % |
| 5120 | % o image: the image. |
| 5121 | % |
| 5122 | % o radius: Choose a random pixel in a neighborhood of this extent. |
| 5123 | % |
| 5124 | % o exception: return any errors or warnings in this structure. |
| 5125 | % |
| 5126 | */ |
| 5127 | MagickExport Image *SpreadImage(const Image *image,const double radius, |
| 5128 | ExceptionInfo *exception) |
| 5129 | { |
| 5130 | #define SpreadImageTag "Spread/Image" |
| 5131 | |
cristy | fa11211 | 2010-01-04 17:48:07 +0000 | [diff] [blame] | 5132 | CacheView |
| 5133 | *image_view; |
| 5134 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5135 | Image |
| 5136 | *spread_image; |
| 5137 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5138 | MagickBooleanType |
| 5139 | status; |
| 5140 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 5141 | MagickOffsetType |
| 5142 | progress; |
| 5143 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5144 | MagickPixelPacket |
cristy | ddd8220 | 2009-11-03 20:14:50 +0000 | [diff] [blame] | 5145 | bias; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5146 | |
| 5147 | RandomInfo |
cristy | fa11211 | 2010-01-04 17:48:07 +0000 | [diff] [blame] | 5148 | **restrict random_info; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5149 | |
| 5150 | ResampleFilter |
cristy | fa11211 | 2010-01-04 17:48:07 +0000 | [diff] [blame] | 5151 | **restrict resample_filter; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5152 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 5153 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5154 | width; |
| 5155 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 5156 | ssize_t |
| 5157 | y; |
| 5158 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5159 | /* |
| 5160 | Initialize spread image attributes. |
| 5161 | */ |
| 5162 | assert(image != (Image *) NULL); |
| 5163 | assert(image->signature == MagickSignature); |
| 5164 | if (image->debug != MagickFalse) |
| 5165 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 5166 | assert(exception != (ExceptionInfo *) NULL); |
| 5167 | assert(exception->signature == MagickSignature); |
| 5168 | spread_image=CloneImage(image,image->columns,image->rows,MagickTrue, |
| 5169 | exception); |
| 5170 | if (spread_image == (Image *) NULL) |
| 5171 | return((Image *) NULL); |
| 5172 | if (SetImageStorageClass(spread_image,DirectClass) == MagickFalse) |
| 5173 | { |
| 5174 | InheritException(exception,&spread_image->exception); |
| 5175 | spread_image=DestroyImage(spread_image); |
| 5176 | return((Image *) NULL); |
| 5177 | } |
| 5178 | /* |
| 5179 | Spread image. |
| 5180 | */ |
| 5181 | status=MagickTrue; |
| 5182 | progress=0; |
cristy | ddd8220 | 2009-11-03 20:14:50 +0000 | [diff] [blame] | 5183 | GetMagickPixelPacket(spread_image,&bias); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5184 | width=GetOptimalKernelWidth1D(radius,0.5); |
cristy | b2a11ae | 2010-02-22 00:53:36 +0000 | [diff] [blame] | 5185 | resample_filter=AcquireResampleFilterThreadSet(image, |
| 5186 | UndefinedVirtualPixelMethod,MagickTrue,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5187 | random_info=AcquireRandomInfoThreadSet(); |
| 5188 | image_view=AcquireCacheView(spread_image); |
cristy | d3dd050 | 2010-04-26 00:57:20 +0000 | [diff] [blame] | 5189 | #if defined(MAGICKCORE_OPENMP_SUPPORT) && defined(MAGICKCORE_FUTURE) |
cristy | 8a7ea36 | 2010-03-10 20:31:43 +0000 | [diff] [blame] | 5190 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5191 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 5192 | for (y=0; y < (ssize_t) spread_image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5193 | { |
| 5194 | MagickPixelPacket |
| 5195 | pixel; |
| 5196 | |
| 5197 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 5198 | *restrict indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5199 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 5200 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5201 | id, |
| 5202 | x; |
| 5203 | |
| 5204 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 5205 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5206 | |
| 5207 | if (status == MagickFalse) |
| 5208 | continue; |
| 5209 | q=QueueCacheViewAuthenticPixels(image_view,0,y,spread_image->columns,1, |
| 5210 | exception); |
| 5211 | if (q == (PixelPacket *) NULL) |
| 5212 | { |
| 5213 | status=MagickFalse; |
| 5214 | continue; |
| 5215 | } |
| 5216 | indexes=GetCacheViewAuthenticIndexQueue(image_view); |
cristy | ddd8220 | 2009-11-03 20:14:50 +0000 | [diff] [blame] | 5217 | pixel=bias; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5218 | id=GetOpenMPThreadId(); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 5219 | for (x=0; x < (ssize_t) spread_image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5220 | { |
| 5221 | (void) ResamplePixelColor(resample_filter[id],(double) x+width* |
| 5222 | (GetPseudoRandomValue(random_info[id])-0.5),(double) y+width* |
| 5223 | (GetPseudoRandomValue(random_info[id])-0.5),&pixel); |
| 5224 | SetPixelPacket(spread_image,&pixel,q,indexes+x); |
| 5225 | q++; |
| 5226 | } |
| 5227 | if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse) |
| 5228 | status=MagickFalse; |
| 5229 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 5230 | { |
| 5231 | MagickBooleanType |
| 5232 | proceed; |
| 5233 | |
cristy | d3dd050 | 2010-04-26 00:57:20 +0000 | [diff] [blame] | 5234 | #if defined(MAGICKCORE_OPENMP_SUPPORT) && defined(MAGICKCORE_FUTURE) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5235 | #pragma omp critical (MagickCore_SpreadImage) |
| 5236 | #endif |
| 5237 | proceed=SetImageProgress(image,SpreadImageTag,progress++,image->rows); |
| 5238 | if (proceed == MagickFalse) |
| 5239 | status=MagickFalse; |
| 5240 | } |
| 5241 | } |
| 5242 | image_view=DestroyCacheView(image_view); |
| 5243 | random_info=DestroyRandomInfoThreadSet(random_info); |
| 5244 | resample_filter=DestroyResampleFilterThreadSet(resample_filter); |
| 5245 | return(spread_image); |
| 5246 | } |
| 5247 | |
| 5248 | /* |
| 5249 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 5250 | % % |
| 5251 | % % |
| 5252 | % % |
| 5253 | % U n s h a r p M a s k I m a g e % |
| 5254 | % % |
| 5255 | % % |
| 5256 | % % |
| 5257 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 5258 | % |
| 5259 | % UnsharpMaskImage() sharpens one or more image channels. We convolve the |
| 5260 | % image with a Gaussian operator of the given radius and standard deviation |
| 5261 | % (sigma). For reasonable results, radius should be larger than sigma. Use a |
| 5262 | % radius of 0 and UnsharpMaskImage() selects a suitable radius for you. |
| 5263 | % |
| 5264 | % The format of the UnsharpMaskImage method is: |
| 5265 | % |
| 5266 | % Image *UnsharpMaskImage(const Image *image,const double radius, |
| 5267 | % const double sigma,const double amount,const double threshold, |
| 5268 | % ExceptionInfo *exception) |
| 5269 | % Image *UnsharpMaskImageChannel(const Image *image, |
| 5270 | % const ChannelType channel,const double radius,const double sigma, |
| 5271 | % const double amount,const double threshold,ExceptionInfo *exception) |
| 5272 | % |
| 5273 | % A description of each parameter follows: |
| 5274 | % |
| 5275 | % o image: the image. |
| 5276 | % |
| 5277 | % o channel: the channel type. |
| 5278 | % |
| 5279 | % o radius: the radius of the Gaussian, in pixels, not counting the center |
| 5280 | % pixel. |
| 5281 | % |
| 5282 | % o sigma: the standard deviation of the Gaussian, in pixels. |
| 5283 | % |
| 5284 | % o amount: the percentage of the difference between the original and the |
| 5285 | % blur image that is added back into the original. |
| 5286 | % |
| 5287 | % o threshold: the threshold in pixels needed to apply the diffence amount. |
| 5288 | % |
| 5289 | % o exception: return any errors or warnings in this structure. |
| 5290 | % |
| 5291 | */ |
| 5292 | |
| 5293 | MagickExport Image *UnsharpMaskImage(const Image *image,const double radius, |
| 5294 | const double sigma,const double amount,const double threshold, |
| 5295 | ExceptionInfo *exception) |
| 5296 | { |
| 5297 | Image |
| 5298 | *sharp_image; |
| 5299 | |
| 5300 | sharp_image=UnsharpMaskImageChannel(image,DefaultChannels,radius,sigma,amount, |
| 5301 | threshold,exception); |
| 5302 | return(sharp_image); |
| 5303 | } |
| 5304 | |
| 5305 | MagickExport Image *UnsharpMaskImageChannel(const Image *image, |
| 5306 | const ChannelType channel,const double radius,const double sigma, |
| 5307 | const double amount,const double threshold,ExceptionInfo *exception) |
| 5308 | { |
| 5309 | #define SharpenImageTag "Sharpen/Image" |
| 5310 | |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 5311 | CacheView |
| 5312 | *image_view, |
| 5313 | *unsharp_view; |
| 5314 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5315 | Image |
| 5316 | *unsharp_image; |
| 5317 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5318 | MagickBooleanType |
| 5319 | status; |
| 5320 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 5321 | MagickOffsetType |
| 5322 | progress; |
| 5323 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5324 | MagickPixelPacket |
cristy | ddd8220 | 2009-11-03 20:14:50 +0000 | [diff] [blame] | 5325 | bias; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5326 | |
| 5327 | MagickRealType |
| 5328 | quantum_threshold; |
| 5329 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 5330 | ssize_t |
| 5331 | y; |
| 5332 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5333 | assert(image != (const Image *) NULL); |
| 5334 | assert(image->signature == MagickSignature); |
| 5335 | if (image->debug != MagickFalse) |
| 5336 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 5337 | assert(exception != (ExceptionInfo *) NULL); |
| 5338 | unsharp_image=BlurImageChannel(image,channel,radius,sigma,exception); |
| 5339 | if (unsharp_image == (Image *) NULL) |
| 5340 | return((Image *) NULL); |
| 5341 | quantum_threshold=(MagickRealType) QuantumRange*threshold; |
| 5342 | /* |
| 5343 | Unsharp-mask image. |
| 5344 | */ |
| 5345 | status=MagickTrue; |
| 5346 | progress=0; |
cristy | ddd8220 | 2009-11-03 20:14:50 +0000 | [diff] [blame] | 5347 | GetMagickPixelPacket(image,&bias); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5348 | image_view=AcquireCacheView(image); |
| 5349 | unsharp_view=AcquireCacheView(unsharp_image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 5350 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 5351 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5352 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 5353 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5354 | { |
| 5355 | MagickPixelPacket |
| 5356 | pixel; |
| 5357 | |
| 5358 | register const IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 5359 | *restrict indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5360 | |
| 5361 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 5362 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5363 | |
| 5364 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 5365 | *restrict unsharp_indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5366 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 5367 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5368 | x; |
| 5369 | |
| 5370 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 5371 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5372 | |
| 5373 | if (status == MagickFalse) |
| 5374 | continue; |
| 5375 | p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception); |
| 5376 | q=GetCacheViewAuthenticPixels(unsharp_view,0,y,unsharp_image->columns,1, |
| 5377 | exception); |
| 5378 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 5379 | { |
| 5380 | status=MagickFalse; |
| 5381 | continue; |
| 5382 | } |
| 5383 | indexes=GetCacheViewVirtualIndexQueue(image_view); |
| 5384 | unsharp_indexes=GetCacheViewAuthenticIndexQueue(unsharp_view); |
cristy | ddd8220 | 2009-11-03 20:14:50 +0000 | [diff] [blame] | 5385 | pixel=bias; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame^] | 5386 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5387 | { |
| 5388 | if ((channel & RedChannel) != 0) |
| 5389 | { |
| 5390 | pixel.red=p->red-(MagickRealType) q->red; |
| 5391 | if (fabs(2.0*pixel.red) < quantum_threshold) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 5392 | pixel.red=(MagickRealType) GetRedPixelComponent(p); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5393 | else |
| 5394 | pixel.red=(MagickRealType) p->red+(pixel.red*amount); |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 5395 | SetRedPixelComponent(q,ClampRedPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5396 | } |
| 5397 | if ((channel & GreenChannel) != 0) |
| 5398 | { |
| 5399 | pixel.green=p->green-(MagickRealType) q->green; |
| 5400 | if (fabs(2.0*pixel.green) < quantum_threshold) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 5401 | pixel.green=(MagickRealType) GetGreenPixelComponent(p); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5402 | else |
| 5403 | pixel.green=(MagickRealType) p->green+(pixel.green*amount); |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 5404 | SetGreenPixelComponent(q,ClampGreenPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5405 | } |
| 5406 | if ((channel & BlueChannel) != 0) |
| 5407 | { |
| 5408 | pixel.blue=p->blue-(MagickRealType) q->blue; |
| 5409 | if (fabs(2.0*pixel.blue) < quantum_threshold) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 5410 | pixel.blue=(MagickRealType) GetBluePixelComponent(p); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5411 | else |
| 5412 | pixel.blue=(MagickRealType) p->blue+(pixel.blue*amount); |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 5413 | SetBluePixelComponent(q,ClampBluePixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5414 | } |
| 5415 | if ((channel & OpacityChannel) != 0) |
| 5416 | { |
| 5417 | pixel.opacity=p->opacity-(MagickRealType) q->opacity; |
| 5418 | if (fabs(2.0*pixel.opacity) < quantum_threshold) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 5419 | pixel.opacity=(MagickRealType) GetOpacityPixelComponent(p); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5420 | else |
| 5421 | pixel.opacity=p->opacity+(pixel.opacity*amount); |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 5422 | SetOpacityPixelComponent(q,ClampOpacityPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5423 | } |
| 5424 | if (((channel & IndexChannel) != 0) && |
| 5425 | (image->colorspace == CMYKColorspace)) |
| 5426 | { |
| 5427 | pixel.index=unsharp_indexes[x]-(MagickRealType) indexes[x]; |
| 5428 | if (fabs(2.0*pixel.index) < quantum_threshold) |
| 5429 | pixel.index=(MagickRealType) unsharp_indexes[x]; |
| 5430 | else |
| 5431 | pixel.index=(MagickRealType) unsharp_indexes[x]+(pixel.index* |
| 5432 | amount); |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 5433 | unsharp_indexes[x]=ClampToQuantum(pixel.index); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5434 | } |
| 5435 | p++; |
| 5436 | q++; |
| 5437 | } |
| 5438 | if (SyncCacheViewAuthenticPixels(unsharp_view,exception) == MagickFalse) |
| 5439 | status=MagickFalse; |
| 5440 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 5441 | { |
| 5442 | MagickBooleanType |
| 5443 | proceed; |
| 5444 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 5445 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5446 | #pragma omp critical (MagickCore_UnsharpMaskImageChannel) |
| 5447 | #endif |
| 5448 | proceed=SetImageProgress(image,SharpenImageTag,progress++,image->rows); |
| 5449 | if (proceed == MagickFalse) |
| 5450 | status=MagickFalse; |
| 5451 | } |
| 5452 | } |
| 5453 | unsharp_image->type=image->type; |
| 5454 | unsharp_view=DestroyCacheView(unsharp_view); |
| 5455 | image_view=DestroyCacheView(image_view); |
| 5456 | if (status == MagickFalse) |
| 5457 | unsharp_image=DestroyImage(unsharp_image); |
| 5458 | return(unsharp_image); |
| 5459 | } |