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 % |
cristy | de984cd | 2013-12-01 14:49:27 +0000 | [diff] [blame] | 16 | % Cristy % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 17 | % October 1996 % |
| 18 | % % |
| 19 | % % |
cristy | b56bb24 | 2014-11-25 17:12:48 +0000 | [diff] [blame] | 20 | % Copyright 1999-2015 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 | */ |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 43 | #include "MagickCore/studio.h" |
| 44 | #include "MagickCore/accelerate.h" |
| 45 | #include "MagickCore/blob.h" |
| 46 | #include "MagickCore/cache-view.h" |
| 47 | #include "MagickCore/color.h" |
| 48 | #include "MagickCore/color-private.h" |
| 49 | #include "MagickCore/colorspace.h" |
| 50 | #include "MagickCore/constitute.h" |
| 51 | #include "MagickCore/decorate.h" |
cristy | c53413d | 2011-11-17 13:04:26 +0000 | [diff] [blame] | 52 | #include "MagickCore/distort.h" |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 53 | #include "MagickCore/draw.h" |
| 54 | #include "MagickCore/enhance.h" |
| 55 | #include "MagickCore/exception.h" |
| 56 | #include "MagickCore/exception-private.h" |
| 57 | #include "MagickCore/effect.h" |
| 58 | #include "MagickCore/fx.h" |
| 59 | #include "MagickCore/gem.h" |
cristy | 8ea8122 | 2011-09-04 10:33:32 +0000 | [diff] [blame] | 60 | #include "MagickCore/gem-private.h" |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 61 | #include "MagickCore/geometry.h" |
| 62 | #include "MagickCore/image-private.h" |
| 63 | #include "MagickCore/list.h" |
| 64 | #include "MagickCore/log.h" |
cristy | dde3f7a | 2014-04-04 00:55:24 +0000 | [diff] [blame] | 65 | #include "MagickCore/matrix.h" |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 66 | #include "MagickCore/memory_.h" |
cristy | e42639a | 2012-08-23 01:53:24 +0000 | [diff] [blame] | 67 | #include "MagickCore/memory-private.h" |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 68 | #include "MagickCore/monitor.h" |
| 69 | #include "MagickCore/monitor-private.h" |
| 70 | #include "MagickCore/montage.h" |
| 71 | #include "MagickCore/morphology.h" |
cristy | 7f391ce | 2013-03-27 11:03:11 +0000 | [diff] [blame] | 72 | #include "MagickCore/morphology-private.h" |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 73 | #include "MagickCore/paint.h" |
| 74 | #include "MagickCore/pixel-accessor.h" |
cristy | 1d1b10f | 2012-06-02 20:02:55 +0000 | [diff] [blame] | 75 | #include "MagickCore/pixel-private.h" |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 76 | #include "MagickCore/property.h" |
| 77 | #include "MagickCore/quantize.h" |
| 78 | #include "MagickCore/quantum.h" |
| 79 | #include "MagickCore/quantum-private.h" |
| 80 | #include "MagickCore/random_.h" |
| 81 | #include "MagickCore/random-private.h" |
| 82 | #include "MagickCore/resample.h" |
| 83 | #include "MagickCore/resample-private.h" |
| 84 | #include "MagickCore/resize.h" |
| 85 | #include "MagickCore/resource_.h" |
| 86 | #include "MagickCore/segment.h" |
cristy | 31bbf2f | 2011-11-17 13:19:37 +0000 | [diff] [blame] | 87 | #include "MagickCore/shear.h" |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 88 | #include "MagickCore/signature-private.h" |
cristy | 99bd523 | 2011-12-07 14:38:20 +0000 | [diff] [blame] | 89 | #include "MagickCore/statistic.h" |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 90 | #include "MagickCore/string_.h" |
| 91 | #include "MagickCore/thread-private.h" |
| 92 | #include "MagickCore/transform.h" |
| 93 | #include "MagickCore/threshold.h" |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 94 | |
| 95 | /* |
| 96 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 97 | % % |
| 98 | % % |
| 99 | % % |
| 100 | % A d a p t i v e B l u r I m a g e % |
| 101 | % % |
| 102 | % % |
| 103 | % % |
| 104 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 105 | % |
| 106 | % AdaptiveBlurImage() adaptively blurs the image by blurring less |
| 107 | % intensely near image edges and more intensely far from edges. We blur the |
| 108 | % image with a Gaussian operator of the given radius and standard deviation |
| 109 | % (sigma). For reasonable results, radius should be larger than sigma. Use a |
| 110 | % radius of 0 and AdaptiveBlurImage() selects a suitable radius for you. |
| 111 | % |
| 112 | % The format of the AdaptiveBlurImage method is: |
| 113 | % |
| 114 | % Image *AdaptiveBlurImage(const Image *image,const double radius, |
cristy | aa2c16c | 2012-03-25 22:21:35 +0000 | [diff] [blame] | 115 | % const double sigma,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 116 | % |
| 117 | % A description of each parameter follows: |
| 118 | % |
| 119 | % o image: the image. |
| 120 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 121 | % o radius: the radius of the Gaussian, in pixels, not counting the center |
| 122 | % pixel. |
| 123 | % |
| 124 | % o sigma: the standard deviation of the Laplacian, in pixels. |
| 125 | % |
| 126 | % o exception: return any errors or warnings in this structure. |
| 127 | % |
| 128 | */ |
cristy | 4282c70 | 2011-11-21 00:01:06 +0000 | [diff] [blame] | 129 | MagickExport Image *AdaptiveBlurImage(const Image *image,const double radius, |
cristy | aa2c16c | 2012-03-25 22:21:35 +0000 | [diff] [blame] | 130 | const double sigma,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 131 | { |
| 132 | #define AdaptiveBlurImageTag "Convolve/Image" |
cristy | 9b52834 | 2012-06-02 00:59:20 +0000 | [diff] [blame] | 133 | #define MagickSigma (fabs(sigma) < MagickEpsilon ? MagickEpsilon : sigma) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 134 | |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 135 | CacheView |
| 136 | *blur_view, |
| 137 | *edge_view, |
| 138 | *image_view; |
| 139 | |
cristy | f4bae2c | 2012-10-17 12:19:38 +0000 | [diff] [blame] | 140 | double |
| 141 | normalize; |
| 142 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 143 | Image |
| 144 | *blur_image, |
| 145 | *edge_image, |
| 146 | *gaussian_image; |
| 147 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 148 | MagickBooleanType |
| 149 | status; |
| 150 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 151 | MagickOffsetType |
| 152 | progress; |
| 153 | |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 154 | MagickRealType |
cristy | f4bae2c | 2012-10-17 12:19:38 +0000 | [diff] [blame] | 155 | **kernel; |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 156 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 157 | register ssize_t |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 158 | i; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 159 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 160 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 161 | width; |
| 162 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 163 | ssize_t |
| 164 | j, |
| 165 | k, |
| 166 | u, |
| 167 | v, |
| 168 | y; |
| 169 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 170 | assert(image != (const Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 171 | assert(image->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 172 | if (image->debug != MagickFalse) |
| 173 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 174 | assert(exception != (ExceptionInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 175 | assert(exception->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 176 | blur_image=CloneImage(image,image->columns,image->rows,MagickTrue,exception); |
| 177 | if (blur_image == (Image *) NULL) |
| 178 | return((Image *) NULL); |
cristy | 3d2287c | 2012-06-04 21:26:19 +0000 | [diff] [blame] | 179 | if (fabs(sigma) < MagickEpsilon) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 180 | return(blur_image); |
cristy | 574cc26 | 2011-08-05 01:23:58 +0000 | [diff] [blame] | 181 | if (SetImageStorageClass(blur_image,DirectClass,exception) == MagickFalse) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 182 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 183 | blur_image=DestroyImage(blur_image); |
| 184 | return((Image *) NULL); |
| 185 | } |
| 186 | /* |
| 187 | Edge detect the image brighness channel, level, blur, and level again. |
| 188 | */ |
cristy | 9dc4c51 | 2013-03-24 01:38:00 +0000 | [diff] [blame] | 189 | edge_image=EdgeImage(image,radius,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 190 | if (edge_image == (Image *) NULL) |
| 191 | { |
| 192 | blur_image=DestroyImage(blur_image); |
| 193 | return((Image *) NULL); |
| 194 | } |
cristy | d8dd86c | 2014-05-28 10:58:46 +0000 | [diff] [blame] | 195 | (void) AutoLevelImage(edge_image,exception); |
cristy | b202ff3 | 2013-03-24 15:16:46 +0000 | [diff] [blame] | 196 | gaussian_image=BlurImage(edge_image,radius,sigma,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 197 | if (gaussian_image != (Image *) NULL) |
| 198 | { |
| 199 | edge_image=DestroyImage(edge_image); |
| 200 | edge_image=gaussian_image; |
| 201 | } |
cristy | d8dd86c | 2014-05-28 10:58:46 +0000 | [diff] [blame] | 202 | (void) AutoLevelImage(edge_image,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 203 | /* |
| 204 | Create a set of kernels from maximum (radius,sigma) to minimum. |
| 205 | */ |
| 206 | width=GetOptimalKernelWidth2D(radius,sigma); |
cristy | e42639a | 2012-08-23 01:53:24 +0000 | [diff] [blame] | 207 | kernel=(MagickRealType **) MagickAssumeAligned(AcquireAlignedMemory((size_t) |
| 208 | width,sizeof(*kernel))); |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 209 | if (kernel == (MagickRealType **) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 210 | { |
| 211 | edge_image=DestroyImage(edge_image); |
| 212 | blur_image=DestroyImage(blur_image); |
| 213 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 214 | } |
| 215 | (void) ResetMagickMemory(kernel,0,(size_t) width*sizeof(*kernel)); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 216 | for (i=0; i < (ssize_t) width; i+=2) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 217 | { |
cristy | e42639a | 2012-08-23 01:53:24 +0000 | [diff] [blame] | 218 | kernel[i]=(MagickRealType *) MagickAssumeAligned(AcquireAlignedMemory( |
| 219 | (size_t) (width-i),(width-i)*sizeof(**kernel))); |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 220 | if (kernel[i] == (MagickRealType *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 221 | break; |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 222 | normalize=0.0; |
cristy | 6eec520 | 2013-04-16 23:33:08 +0000 | [diff] [blame] | 223 | j=(ssize_t) (width-i-1)/2; |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 224 | k=0; |
| 225 | for (v=(-j); v <= j; v++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 226 | { |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 227 | for (u=(-j); u <= j; u++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 228 | { |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 229 | kernel[i][k]=(MagickRealType) (exp(-((double) u*u+v*v)/(2.0*MagickSigma* |
cristy | 4205a3c | 2010-09-12 20:19:59 +0000 | [diff] [blame] | 230 | MagickSigma))/(2.0*MagickPI*MagickSigma*MagickSigma)); |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 231 | normalize+=kernel[i][k]; |
| 232 | k++; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 233 | } |
| 234 | } |
cristy | 6eec520 | 2013-04-16 23:33:08 +0000 | [diff] [blame] | 235 | kernel[i][(j-1)/2]+=(1.0-normalize); |
| 236 | if (sigma < MagickEpsilon) |
| 237 | kernel[i][(j-1)/2]=1.0; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 238 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 239 | if (i < (ssize_t) width) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 240 | { |
| 241 | for (i-=2; i >= 0; i-=2) |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 242 | kernel[i]=(MagickRealType *) RelinquishAlignedMemory(kernel[i]); |
| 243 | kernel=(MagickRealType **) RelinquishAlignedMemory(kernel); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 244 | edge_image=DestroyImage(edge_image); |
| 245 | blur_image=DestroyImage(blur_image); |
| 246 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 247 | } |
| 248 | /* |
| 249 | Adaptively blur image. |
| 250 | */ |
| 251 | status=MagickTrue; |
| 252 | progress=0; |
cristy | 46ff267 | 2012-12-14 15:32:26 +0000 | [diff] [blame] | 253 | image_view=AcquireVirtualCacheView(image,exception); |
| 254 | edge_view=AcquireVirtualCacheView(edge_image,exception); |
| 255 | blur_view=AcquireAuthenticCacheView(blur_image,exception); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 256 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | ac245f8 | 2012-05-05 17:13:57 +0000 | [diff] [blame] | 257 | #pragma omp parallel for schedule(static,4) shared(progress,status) \ |
cristy | 5e6b259 | 2012-12-19 14:08:11 +0000 | [diff] [blame] | 258 | magick_threads(image,blur_image,blur_image->rows,1) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 259 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 260 | for (y=0; y < (ssize_t) blur_image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 261 | { |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 262 | register const Quantum |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 263 | *restrict r; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 264 | |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 265 | register Quantum |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 266 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 267 | |
cristy | 117ff17 | 2010-08-15 21:35:32 +0000 | [diff] [blame] | 268 | register ssize_t |
| 269 | x; |
| 270 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 271 | if (status == MagickFalse) |
| 272 | continue; |
| 273 | r=GetCacheViewVirtualPixels(edge_view,0,y,edge_image->columns,1,exception); |
| 274 | q=QueueCacheViewAuthenticPixels(blur_view,0,y,blur_image->columns,1, |
| 275 | exception); |
cristy | acd2ed2 | 2011-08-30 01:44:23 +0000 | [diff] [blame] | 276 | if ((r == (const Quantum *) NULL) || (q == (Quantum *) NULL)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 277 | { |
| 278 | status=MagickFalse; |
| 279 | continue; |
| 280 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 281 | for (x=0; x < (ssize_t) blur_image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 282 | { |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 283 | register const Quantum |
| 284 | *restrict p; |
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 | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 287 | i; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 288 | |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 289 | ssize_t |
| 290 | center, |
| 291 | j; |
| 292 | |
| 293 | j=(ssize_t) ceil((double) width*QuantumScale* |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 294 | GetPixelIntensity(edge_image,r)-0.5); |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 295 | if (j < 0) |
| 296 | j=0; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 297 | else |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 298 | if (j > (ssize_t) width) |
| 299 | j=(ssize_t) width; |
| 300 | if ((j & 0x01) != 0) |
| 301 | j--; |
| 302 | p=GetCacheViewVirtualPixels(image_view,x-((ssize_t) (width-j)/2L),y- |
| 303 | (ssize_t) ((width-j)/2L),width-j,width-j,exception); |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 304 | if (p == (const Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 305 | break; |
cristy | d09f880 | 2012-02-04 16:44:10 +0000 | [diff] [blame] | 306 | center=(ssize_t) GetPixelChannels(image)*(width-j)*((width-j)/2L)+ |
| 307 | GetPixelChannels(image)*((width-j)/2L); |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 308 | for (i=0; i < (ssize_t) GetPixelChannels(image); i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 309 | { |
cristy | a19f1d7 | 2012-08-07 18:24:38 +0000 | [diff] [blame] | 310 | double |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 311 | alpha, |
| 312 | gamma, |
| 313 | pixel; |
| 314 | |
cristy | 633067b | 2013-02-21 01:15:12 +0000 | [diff] [blame] | 315 | PixelChannel |
| 316 | channel; |
| 317 | |
| 318 | PixelTrait |
| 319 | blur_traits, |
| 320 | traits; |
| 321 | |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 322 | register const MagickRealType |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 323 | *restrict k; |
| 324 | |
| 325 | register const Quantum |
| 326 | *restrict pixels; |
| 327 | |
| 328 | register ssize_t |
| 329 | u; |
| 330 | |
| 331 | ssize_t |
| 332 | v; |
| 333 | |
cristy | 633067b | 2013-02-21 01:15:12 +0000 | [diff] [blame] | 334 | channel=GetPixelChannelChannel(image,i); |
| 335 | traits=GetPixelChannelTraits(image,channel); |
| 336 | blur_traits=GetPixelChannelTraits(blur_image,channel); |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 337 | if ((traits == UndefinedPixelTrait) || |
| 338 | (blur_traits == UndefinedPixelTrait)) |
| 339 | continue; |
cristy | 1eced09 | 2012-08-10 23:10:56 +0000 | [diff] [blame] | 340 | if (((blur_traits & CopyPixelTrait) != 0) || |
cristy | 883fde1 | 2013-04-08 00:50:13 +0000 | [diff] [blame] | 341 | (GetPixelReadMask(image,p+center) == 0)) |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 342 | { |
cristy | 0beccfa | 2011-09-25 20:47:53 +0000 | [diff] [blame] | 343 | SetPixelChannel(blur_image,channel,p[center+i],q); |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 344 | continue; |
| 345 | } |
| 346 | k=kernel[j]; |
| 347 | pixels=p; |
cristy | aa2c16c | 2012-03-25 22:21:35 +0000 | [diff] [blame] | 348 | pixel=0.0; |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 349 | gamma=0.0; |
cristy | 633067b | 2013-02-21 01:15:12 +0000 | [diff] [blame] | 350 | if ((blur_traits & BlendPixelTrait) == 0) |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 351 | { |
| 352 | /* |
| 353 | No alpha blending. |
| 354 | */ |
| 355 | for (v=0; v < (ssize_t) (width-j); v++) |
| 356 | { |
| 357 | for (u=0; u < (ssize_t) (width-j); u++) |
| 358 | { |
| 359 | pixel+=(*k)*pixels[i]; |
| 360 | gamma+=(*k); |
| 361 | k++; |
| 362 | pixels+=GetPixelChannels(image); |
| 363 | } |
| 364 | } |
cristy | 3e3ec3a | 2012-11-03 23:11:06 +0000 | [diff] [blame] | 365 | gamma=PerceptibleReciprocal(gamma); |
cristy | 0beccfa | 2011-09-25 20:47:53 +0000 | [diff] [blame] | 366 | SetPixelChannel(blur_image,channel,ClampToQuantum(gamma*pixel),q); |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 367 | continue; |
| 368 | } |
| 369 | /* |
| 370 | Alpha blending. |
| 371 | */ |
| 372 | for (v=0; v < (ssize_t) (width-j); v++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 373 | { |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 374 | for (u=0; u < (ssize_t) (width-j); u++) |
| 375 | { |
cristy | a19f1d7 | 2012-08-07 18:24:38 +0000 | [diff] [blame] | 376 | alpha=(double) (QuantumScale*GetPixelAlpha(image,pixels)); |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 377 | pixel+=(*k)*alpha*pixels[i]; |
| 378 | gamma+=(*k)*alpha; |
| 379 | k++; |
| 380 | pixels+=GetPixelChannels(image); |
| 381 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 382 | } |
cristy | 3e3ec3a | 2012-11-03 23:11:06 +0000 | [diff] [blame] | 383 | gamma=PerceptibleReciprocal(gamma); |
cristy | 0beccfa | 2011-09-25 20:47:53 +0000 | [diff] [blame] | 384 | SetPixelChannel(blur_image,channel,ClampToQuantum(gamma*pixel),q); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 385 | } |
cristy | ed23157 | 2011-07-14 02:18:59 +0000 | [diff] [blame] | 386 | q+=GetPixelChannels(blur_image); |
| 387 | r+=GetPixelChannels(edge_image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 388 | } |
| 389 | if (SyncCacheViewAuthenticPixels(blur_view,exception) == MagickFalse) |
| 390 | status=MagickFalse; |
| 391 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 392 | { |
| 393 | MagickBooleanType |
| 394 | proceed; |
| 395 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 396 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | f856154 | 2012-01-24 00:26:46 +0000 | [diff] [blame] | 397 | #pragma omp critical (MagickCore_AdaptiveBlurImage) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 398 | #endif |
| 399 | proceed=SetImageProgress(image,AdaptiveBlurImageTag,progress++, |
| 400 | image->rows); |
| 401 | if (proceed == MagickFalse) |
| 402 | status=MagickFalse; |
| 403 | } |
| 404 | } |
| 405 | blur_image->type=image->type; |
| 406 | blur_view=DestroyCacheView(blur_view); |
| 407 | edge_view=DestroyCacheView(edge_view); |
| 408 | image_view=DestroyCacheView(image_view); |
| 409 | edge_image=DestroyImage(edge_image); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 410 | for (i=0; i < (ssize_t) width; i+=2) |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 411 | kernel[i]=(MagickRealType *) RelinquishAlignedMemory(kernel[i]); |
| 412 | kernel=(MagickRealType **) RelinquishAlignedMemory(kernel); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 413 | if (status == MagickFalse) |
| 414 | blur_image=DestroyImage(blur_image); |
| 415 | return(blur_image); |
| 416 | } |
| 417 | |
| 418 | /* |
| 419 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 420 | % % |
| 421 | % % |
| 422 | % % |
| 423 | % A d a p t i v e S h a r p e n I m a g e % |
| 424 | % % |
| 425 | % % |
| 426 | % % |
| 427 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 428 | % |
| 429 | % AdaptiveSharpenImage() adaptively sharpens the image by sharpening more |
| 430 | % intensely near image edges and less intensely far from edges. We sharpen the |
| 431 | % image with a Gaussian operator of the given radius and standard deviation |
| 432 | % (sigma). For reasonable results, radius should be larger than sigma. Use a |
| 433 | % radius of 0 and AdaptiveSharpenImage() selects a suitable radius for you. |
| 434 | % |
| 435 | % The format of the AdaptiveSharpenImage method is: |
| 436 | % |
| 437 | % Image *AdaptiveSharpenImage(const Image *image,const double radius, |
cristy | aa2c16c | 2012-03-25 22:21:35 +0000 | [diff] [blame] | 438 | % const double sigma,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 439 | % |
| 440 | % A description of each parameter follows: |
| 441 | % |
| 442 | % o image: the image. |
| 443 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 444 | % o radius: the radius of the Gaussian, in pixels, not counting the center |
| 445 | % pixel. |
| 446 | % |
| 447 | % o sigma: the standard deviation of the Laplacian, in pixels. |
| 448 | % |
| 449 | % o exception: return any errors or warnings in this structure. |
| 450 | % |
| 451 | */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 452 | MagickExport Image *AdaptiveSharpenImage(const Image *image,const double radius, |
cristy | aa2c16c | 2012-03-25 22:21:35 +0000 | [diff] [blame] | 453 | const double sigma,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 454 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 455 | #define AdaptiveSharpenImageTag "Convolve/Image" |
cristy | 9b52834 | 2012-06-02 00:59:20 +0000 | [diff] [blame] | 456 | #define MagickSigma (fabs(sigma) < MagickEpsilon ? MagickEpsilon : sigma) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 457 | |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 458 | CacheView |
| 459 | *sharp_view, |
| 460 | *edge_view, |
| 461 | *image_view; |
| 462 | |
cristy | f4bae2c | 2012-10-17 12:19:38 +0000 | [diff] [blame] | 463 | double |
| 464 | normalize; |
| 465 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 466 | Image |
| 467 | *sharp_image, |
| 468 | *edge_image, |
| 469 | *gaussian_image; |
| 470 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 471 | MagickBooleanType |
| 472 | status; |
| 473 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 474 | MagickOffsetType |
| 475 | progress; |
| 476 | |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 477 | MagickRealType |
cristy | f4bae2c | 2012-10-17 12:19:38 +0000 | [diff] [blame] | 478 | **kernel; |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 479 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 480 | register ssize_t |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 481 | i; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 482 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 483 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 484 | width; |
| 485 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 486 | ssize_t |
| 487 | j, |
| 488 | k, |
| 489 | u, |
| 490 | v, |
| 491 | y; |
| 492 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 493 | assert(image != (const Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 494 | assert(image->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 495 | if (image->debug != MagickFalse) |
| 496 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 497 | assert(exception != (ExceptionInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 498 | assert(exception->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 499 | sharp_image=CloneImage(image,0,0,MagickTrue,exception); |
| 500 | if (sharp_image == (Image *) NULL) |
| 501 | return((Image *) NULL); |
cristy | e6180ff | 2012-06-04 22:19:16 +0000 | [diff] [blame] | 502 | if (fabs(sigma) < MagickEpsilon) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 503 | return(sharp_image); |
cristy | 574cc26 | 2011-08-05 01:23:58 +0000 | [diff] [blame] | 504 | if (SetImageStorageClass(sharp_image,DirectClass,exception) == MagickFalse) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 505 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 506 | sharp_image=DestroyImage(sharp_image); |
| 507 | return((Image *) NULL); |
| 508 | } |
| 509 | /* |
cristy | d8dd86c | 2014-05-28 10:58:46 +0000 | [diff] [blame] | 510 | Edge detect the image brightness channel, level, sharp, and level again. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 511 | */ |
cristy | 9dc4c51 | 2013-03-24 01:38:00 +0000 | [diff] [blame] | 512 | edge_image=EdgeImage(image,radius,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 513 | if (edge_image == (Image *) NULL) |
| 514 | { |
| 515 | sharp_image=DestroyImage(sharp_image); |
| 516 | return((Image *) NULL); |
| 517 | } |
cristy | d8dd86c | 2014-05-28 10:58:46 +0000 | [diff] [blame] | 518 | (void) AutoLevelImage(edge_image,exception); |
cristy | b202ff3 | 2013-03-24 15:16:46 +0000 | [diff] [blame] | 519 | gaussian_image=BlurImage(edge_image,radius,sigma,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 520 | if (gaussian_image != (Image *) NULL) |
| 521 | { |
| 522 | edge_image=DestroyImage(edge_image); |
| 523 | edge_image=gaussian_image; |
| 524 | } |
cristy | d8dd86c | 2014-05-28 10:58:46 +0000 | [diff] [blame] | 525 | (void) AutoLevelImage(edge_image,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 526 | /* |
| 527 | Create a set of kernels from maximum (radius,sigma) to minimum. |
| 528 | */ |
| 529 | width=GetOptimalKernelWidth2D(radius,sigma); |
cristy | e42639a | 2012-08-23 01:53:24 +0000 | [diff] [blame] | 530 | kernel=(MagickRealType **) MagickAssumeAligned(AcquireAlignedMemory((size_t) |
| 531 | width,sizeof(*kernel))); |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 532 | if (kernel == (MagickRealType **) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 533 | { |
| 534 | edge_image=DestroyImage(edge_image); |
| 535 | sharp_image=DestroyImage(sharp_image); |
| 536 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 537 | } |
| 538 | (void) ResetMagickMemory(kernel,0,(size_t) width*sizeof(*kernel)); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 539 | for (i=0; i < (ssize_t) width; i+=2) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 540 | { |
cristy | e42639a | 2012-08-23 01:53:24 +0000 | [diff] [blame] | 541 | kernel[i]=(MagickRealType *) MagickAssumeAligned(AcquireAlignedMemory( |
| 542 | (size_t) (width-i),(width-i)*sizeof(**kernel))); |
cristy | 97559b6 | 2012-08-23 12:00:40 +0000 | [diff] [blame] | 543 | if (kernel[i] == (MagickRealType *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 544 | break; |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 545 | normalize=0.0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 546 | j=(ssize_t) (width-i)/2; |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 547 | k=0; |
| 548 | for (v=(-j); v <= j; v++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 549 | { |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 550 | for (u=(-j); u <= j; u++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 551 | { |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 552 | kernel[i][k]=(MagickRealType) (-exp(-((double) u*u+v*v)/(2.0* |
| 553 | MagickSigma*MagickSigma))/(2.0*MagickPI*MagickSigma*MagickSigma)); |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 554 | normalize+=kernel[i][k]; |
| 555 | k++; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 556 | } |
| 557 | } |
cristy | 6eec520 | 2013-04-16 23:33:08 +0000 | [diff] [blame] | 558 | kernel[i][(k-1)/2]=(double) ((-2.0)*normalize); |
| 559 | if (sigma < MagickEpsilon) |
| 560 | kernel[i][(k-1)/2]=1.0; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 561 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 562 | if (i < (ssize_t) width) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 563 | { |
| 564 | for (i-=2; i >= 0; i-=2) |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 565 | kernel[i]=(MagickRealType *) RelinquishAlignedMemory(kernel[i]); |
| 566 | kernel=(MagickRealType **) RelinquishAlignedMemory(kernel); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 567 | edge_image=DestroyImage(edge_image); |
| 568 | sharp_image=DestroyImage(sharp_image); |
| 569 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 570 | } |
| 571 | /* |
| 572 | Adaptively sharpen image. |
| 573 | */ |
| 574 | status=MagickTrue; |
| 575 | progress=0; |
cristy | 46ff267 | 2012-12-14 15:32:26 +0000 | [diff] [blame] | 576 | image_view=AcquireVirtualCacheView(image,exception); |
| 577 | edge_view=AcquireVirtualCacheView(edge_image,exception); |
| 578 | sharp_view=AcquireAuthenticCacheView(sharp_image,exception); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 579 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | ac245f8 | 2012-05-05 17:13:57 +0000 | [diff] [blame] | 580 | #pragma omp parallel for schedule(static,4) shared(progress,status) \ |
cristy | 5e6b259 | 2012-12-19 14:08:11 +0000 | [diff] [blame] | 581 | magick_threads(image,sharp_image,sharp_image->rows,1) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 582 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 583 | for (y=0; y < (ssize_t) sharp_image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 584 | { |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 585 | register const Quantum |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 586 | *restrict r; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 587 | |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 588 | register Quantum |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 589 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 590 | |
cristy | 117ff17 | 2010-08-15 21:35:32 +0000 | [diff] [blame] | 591 | register ssize_t |
| 592 | x; |
| 593 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 594 | if (status == MagickFalse) |
| 595 | continue; |
| 596 | r=GetCacheViewVirtualPixels(edge_view,0,y,edge_image->columns,1,exception); |
| 597 | q=QueueCacheViewAuthenticPixels(sharp_view,0,y,sharp_image->columns,1, |
| 598 | exception); |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 599 | if ((r == (const Quantum *) NULL) || (q == (Quantum *) NULL)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 600 | { |
| 601 | status=MagickFalse; |
| 602 | continue; |
| 603 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 604 | for (x=0; x < (ssize_t) sharp_image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 605 | { |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 606 | register const Quantum |
| 607 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 608 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 609 | register ssize_t |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 610 | i; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 611 | |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 612 | ssize_t |
| 613 | center, |
| 614 | j; |
| 615 | |
cristy | 6eec520 | 2013-04-16 23:33:08 +0000 | [diff] [blame] | 616 | j=(ssize_t) ceil((double) width*(1.0-QuantumScale* |
| 617 | GetPixelIntensity(edge_image,r))-0.5); |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 618 | if (j < 0) |
| 619 | j=0; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 620 | else |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 621 | if (j > (ssize_t) width) |
| 622 | j=(ssize_t) width; |
| 623 | if ((j & 0x01) != 0) |
| 624 | j--; |
| 625 | p=GetCacheViewVirtualPixels(image_view,x-((ssize_t) (width-j)/2L),y- |
| 626 | (ssize_t) ((width-j)/2L),width-j,width-j,exception); |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 627 | if (p == (const Quantum *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 628 | break; |
cristy | d09f880 | 2012-02-04 16:44:10 +0000 | [diff] [blame] | 629 | center=(ssize_t) GetPixelChannels(image)*(width-j)*((width-j)/2L)+ |
| 630 | GetPixelChannels(image)*((width-j)/2); |
cristy | c94ba6f | 2012-01-29 23:19:58 +0000 | [diff] [blame] | 631 | for (i=0; i < (ssize_t) GetPixelChannels(sharp_image); i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 632 | { |
cristy | a19f1d7 | 2012-08-07 18:24:38 +0000 | [diff] [blame] | 633 | double |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 634 | alpha, |
| 635 | gamma, |
| 636 | pixel; |
| 637 | |
cristy | 633067b | 2013-02-21 01:15:12 +0000 | [diff] [blame] | 638 | PixelChannel |
| 639 | channel; |
| 640 | |
| 641 | PixelTrait |
| 642 | sharp_traits, |
| 643 | traits; |
| 644 | |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 645 | register const MagickRealType |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 646 | *restrict k; |
| 647 | |
| 648 | register const Quantum |
| 649 | *restrict pixels; |
| 650 | |
| 651 | register ssize_t |
| 652 | u; |
| 653 | |
| 654 | ssize_t |
| 655 | v; |
| 656 | |
cristy | 633067b | 2013-02-21 01:15:12 +0000 | [diff] [blame] | 657 | channel=GetPixelChannelChannel(image,i); |
| 658 | traits=GetPixelChannelTraits(image,channel); |
| 659 | sharp_traits=GetPixelChannelTraits(sharp_image,channel); |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 660 | if ((traits == UndefinedPixelTrait) || |
| 661 | (sharp_traits == UndefinedPixelTrait)) |
| 662 | continue; |
cristy | 1eced09 | 2012-08-10 23:10:56 +0000 | [diff] [blame] | 663 | if (((sharp_traits & CopyPixelTrait) != 0) || |
cristy | 883fde1 | 2013-04-08 00:50:13 +0000 | [diff] [blame] | 664 | (GetPixelReadMask(image,p+center) == 0)) |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 665 | { |
cristy | 0beccfa | 2011-09-25 20:47:53 +0000 | [diff] [blame] | 666 | SetPixelChannel(sharp_image,channel,p[center+i],q); |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 667 | continue; |
| 668 | } |
| 669 | k=kernel[j]; |
| 670 | pixels=p; |
cristy | aa2c16c | 2012-03-25 22:21:35 +0000 | [diff] [blame] | 671 | pixel=0.0; |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 672 | gamma=0.0; |
cristy | 633067b | 2013-02-21 01:15:12 +0000 | [diff] [blame] | 673 | if ((sharp_traits & BlendPixelTrait) == 0) |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 674 | { |
| 675 | /* |
| 676 | No alpha blending. |
| 677 | */ |
| 678 | for (v=0; v < (ssize_t) (width-j); v++) |
| 679 | { |
| 680 | for (u=0; u < (ssize_t) (width-j); u++) |
| 681 | { |
| 682 | pixel+=(*k)*pixels[i]; |
| 683 | gamma+=(*k); |
| 684 | k++; |
| 685 | pixels+=GetPixelChannels(image); |
| 686 | } |
| 687 | } |
cristy | 3e3ec3a | 2012-11-03 23:11:06 +0000 | [diff] [blame] | 688 | gamma=PerceptibleReciprocal(gamma); |
cristy | 0beccfa | 2011-09-25 20:47:53 +0000 | [diff] [blame] | 689 | SetPixelChannel(sharp_image,channel,ClampToQuantum(gamma*pixel),q); |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 690 | continue; |
| 691 | } |
| 692 | /* |
| 693 | Alpha blending. |
| 694 | */ |
| 695 | for (v=0; v < (ssize_t) (width-j); v++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 696 | { |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 697 | for (u=0; u < (ssize_t) (width-j); u++) |
| 698 | { |
cristy | a19f1d7 | 2012-08-07 18:24:38 +0000 | [diff] [blame] | 699 | alpha=(double) (QuantumScale*GetPixelAlpha(image,pixels)); |
cristy | 4c11c2b | 2011-09-05 20:17:07 +0000 | [diff] [blame] | 700 | pixel+=(*k)*alpha*pixels[i]; |
| 701 | gamma+=(*k)*alpha; |
| 702 | k++; |
| 703 | pixels+=GetPixelChannels(image); |
| 704 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 705 | } |
cristy | 3e3ec3a | 2012-11-03 23:11:06 +0000 | [diff] [blame] | 706 | gamma=PerceptibleReciprocal(gamma); |
cristy | 0beccfa | 2011-09-25 20:47:53 +0000 | [diff] [blame] | 707 | SetPixelChannel(sharp_image,channel,ClampToQuantum(gamma*pixel),q); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 708 | } |
cristy | ed23157 | 2011-07-14 02:18:59 +0000 | [diff] [blame] | 709 | q+=GetPixelChannels(sharp_image); |
| 710 | r+=GetPixelChannels(edge_image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 711 | } |
| 712 | if (SyncCacheViewAuthenticPixels(sharp_view,exception) == MagickFalse) |
| 713 | status=MagickFalse; |
| 714 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 715 | { |
| 716 | MagickBooleanType |
| 717 | proceed; |
| 718 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 719 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | f856154 | 2012-01-24 00:26:46 +0000 | [diff] [blame] | 720 | #pragma omp critical (MagickCore_AdaptiveSharpenImage) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 721 | #endif |
| 722 | proceed=SetImageProgress(image,AdaptiveSharpenImageTag,progress++, |
| 723 | image->rows); |
| 724 | if (proceed == MagickFalse) |
| 725 | status=MagickFalse; |
| 726 | } |
| 727 | } |
| 728 | sharp_image->type=image->type; |
| 729 | sharp_view=DestroyCacheView(sharp_view); |
| 730 | edge_view=DestroyCacheView(edge_view); |
| 731 | image_view=DestroyCacheView(image_view); |
| 732 | edge_image=DestroyImage(edge_image); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 733 | for (i=0; i < (ssize_t) width; i+=2) |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 734 | kernel[i]=(MagickRealType *) RelinquishAlignedMemory(kernel[i]); |
| 735 | kernel=(MagickRealType **) RelinquishAlignedMemory(kernel); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 736 | if (status == MagickFalse) |
| 737 | sharp_image=DestroyImage(sharp_image); |
| 738 | return(sharp_image); |
| 739 | } |
| 740 | |
| 741 | /* |
| 742 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 743 | % % |
| 744 | % % |
| 745 | % % |
| 746 | % B l u r I m a g e % |
| 747 | % % |
| 748 | % % |
| 749 | % % |
| 750 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 751 | % |
| 752 | % BlurImage() blurs an image. We convolve the image with a Gaussian operator |
| 753 | % of the given radius and standard deviation (sigma). For reasonable results, |
| 754 | % the radius should be larger than sigma. Use a radius of 0 and BlurImage() |
| 755 | % selects a suitable radius for you. |
| 756 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 757 | % The format of the BlurImage method is: |
| 758 | % |
| 759 | % Image *BlurImage(const Image *image,const double radius, |
cristy | aa2c16c | 2012-03-25 22:21:35 +0000 | [diff] [blame] | 760 | % const double sigma,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 761 | % |
| 762 | % A description of each parameter follows: |
| 763 | % |
| 764 | % o image: the image. |
| 765 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 766 | % o radius: the radius of the Gaussian, in pixels, not counting the center |
| 767 | % pixel. |
| 768 | % |
| 769 | % o sigma: the standard deviation of the Gaussian, in pixels. |
| 770 | % |
| 771 | % o exception: return any errors or warnings in this structure. |
| 772 | % |
| 773 | */ |
cristy | f4ad9df | 2011-07-08 16:49:03 +0000 | [diff] [blame] | 774 | MagickExport Image *BlurImage(const Image *image,const double radius, |
cristy | aa2c16c | 2012-03-25 22:21:35 +0000 | [diff] [blame] | 775 | const double sigma,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 776 | { |
cristy | e6bdb5e | 2013-03-23 18:39:24 +0000 | [diff] [blame] | 777 | char |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 778 | geometry[MagickPathExtent]; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 779 | |
cristy | 590c829 | 2013-02-21 01:37:36 +0000 | [diff] [blame] | 780 | KernelInfo |
| 781 | *kernel_info; |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 782 | |
cristy | e6bdb5e | 2013-03-23 18:39:24 +0000 | [diff] [blame] | 783 | Image |
cristy | d42fab6 | 2013-03-26 16:34:20 +0000 | [diff] [blame] | 784 | *blur_image; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 785 | |
cristy | 590c829 | 2013-02-21 01:37:36 +0000 | [diff] [blame] | 786 | assert(image != (const Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 787 | assert(image->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 788 | if (image->debug != MagickFalse) |
| 789 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 790 | assert(exception != (ExceptionInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 791 | assert(exception->signature == MagickCoreSignature); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 792 | (void) FormatLocaleString(geometry,MagickPathExtent, |
cristy | d42fab6 | 2013-03-26 16:34:20 +0000 | [diff] [blame] | 793 | "blur:%.20gx%.20g;blur:%.20gx%.20g+90",radius,sigma,radius,sigma); |
cristy | 2c57b74 | 2014-10-31 00:40:34 +0000 | [diff] [blame] | 794 | kernel_info=AcquireKernelInfo(geometry,exception); |
cristy | 590c829 | 2013-02-21 01:37:36 +0000 | [diff] [blame] | 795 | if (kernel_info == (KernelInfo *) NULL) |
| 796 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
cristy | 7f391ce | 2013-03-27 11:03:11 +0000 | [diff] [blame] | 797 | blur_image=MorphologyApply(image,ConvolveMorphology,1,kernel_info, |
| 798 | UndefinedCompositeOp,0.0,exception); |
cristy | da1231c | 2013-03-24 19:11:49 +0000 | [diff] [blame] | 799 | kernel_info=DestroyKernelInfo(kernel_info); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 800 | return(blur_image); |
| 801 | } |
| 802 | |
| 803 | /* |
| 804 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 805 | % % |
| 806 | % % |
| 807 | % % |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 808 | % C o n v o l v e I m a g e % |
| 809 | % % |
| 810 | % % |
| 811 | % % |
| 812 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 813 | % |
| 814 | % ConvolveImage() applies a custom convolution kernel to the image. |
| 815 | % |
| 816 | % The format of the ConvolveImage method is: |
| 817 | % |
cristy | 5e6be1e | 2011-07-16 01:23:39 +0000 | [diff] [blame] | 818 | % Image *ConvolveImage(const Image *image,const KernelInfo *kernel, |
| 819 | % ExceptionInfo *exception) |
| 820 | % |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 821 | % A description of each parameter follows: |
| 822 | % |
| 823 | % o image: the image. |
| 824 | % |
cristy | 5e6be1e | 2011-07-16 01:23:39 +0000 | [diff] [blame] | 825 | % o kernel: the filtering kernel. |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 826 | % |
| 827 | % o exception: return any errors or warnings in this structure. |
| 828 | % |
| 829 | */ |
cristy | 5e6be1e | 2011-07-16 01:23:39 +0000 | [diff] [blame] | 830 | MagickExport Image *ConvolveImage(const Image *image, |
| 831 | const KernelInfo *kernel_info,ExceptionInfo *exception) |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 832 | { |
cristy | 7f391ce | 2013-03-27 11:03:11 +0000 | [diff] [blame] | 833 | Image |
| 834 | *convolve_image; |
| 835 | |
| 836 | convolve_image=MorphologyApply(image,ConvolveMorphology,1,kernel_info, |
| 837 | UndefinedCompositeOp,0.0,exception); |
| 838 | return(convolve_image); |
cristy | fccdab9 | 2009-11-30 16:43:57 +0000 | [diff] [blame] | 839 | } |
| 840 | |
| 841 | /* |
| 842 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 843 | % % |
| 844 | % % |
| 845 | % % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 846 | % D e s p e c k l e I m a g e % |
| 847 | % % |
| 848 | % % |
| 849 | % % |
| 850 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 851 | % |
| 852 | % DespeckleImage() reduces the speckle noise in an image while perserving the |
cristy | f0ae776 | 2012-01-15 22:04:03 +0000 | [diff] [blame] | 853 | % edges of the original image. A speckle removing filter uses a complementary % hulling technique (raising pixels that are darker than their surrounding |
| 854 | % neighbors, then complementarily lowering pixels that are brighter than their |
| 855 | % surrounding neighbors) to reduce the speckle index of that image (reference |
| 856 | % Crimmins speckle removal). |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 857 | % |
| 858 | % The format of the DespeckleImage method is: |
| 859 | % |
| 860 | % Image *DespeckleImage(const Image *image,ExceptionInfo *exception) |
| 861 | % |
| 862 | % A description of each parameter follows: |
| 863 | % |
| 864 | % o image: the image. |
| 865 | % |
| 866 | % o exception: return any errors or warnings in this structure. |
| 867 | % |
| 868 | */ |
| 869 | |
cristy | 4ee2b0c | 2012-05-15 00:30:35 +0000 | [diff] [blame] | 870 | static void Hull(const Image *image,const ssize_t x_offset, |
| 871 | const ssize_t y_offset,const size_t columns,const size_t rows, |
| 872 | const int polarity,Quantum *restrict f,Quantum *restrict g) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 873 | { |
cristy | 7b4b886 | 2012-01-16 19:52:19 +0000 | [diff] [blame] | 874 | register Quantum |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 875 | *p, |
| 876 | *q, |
| 877 | *r, |
| 878 | *s; |
cristy | 78f3de2 | 2012-01-16 00:43:18 +0000 | [diff] [blame] | 879 | |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 880 | ssize_t |
| 881 | y; |
| 882 | |
cristy | b0de93f | 2013-05-03 13:39:25 +0000 | [diff] [blame] | 883 | assert(image != (const Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 884 | assert(image->signature == MagickCoreSignature); |
cristy | b0de93f | 2013-05-03 13:39:25 +0000 | [diff] [blame] | 885 | if (image->debug != MagickFalse) |
| 886 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 887 | assert(f != (Quantum *) NULL); |
| 888 | assert(g != (Quantum *) NULL); |
| 889 | p=f+(columns+2); |
| 890 | q=g+(columns+2); |
| 891 | r=p+(y_offset*(columns+2)+x_offset); |
cristy | ff8e85a | 2012-01-18 13:36:20 +0000 | [diff] [blame] | 892 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | d643247 | 2013-01-06 16:56:13 +0000 | [diff] [blame] | 893 | #pragma omp parallel for schedule(static,4) \ |
cristy | 64c10cd | 2013-01-06 18:40:43 +0000 | [diff] [blame] | 894 | magick_threads(image,image,1,1) |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 895 | #endif |
| 896 | for (y=0; y < (ssize_t) rows; y++) |
| 897 | { |
cristy | c058afd | 2012-10-31 11:26:53 +0000 | [diff] [blame] | 898 | MagickRealType |
| 899 | v; |
| 900 | |
cristy | 7b4b886 | 2012-01-16 19:52:19 +0000 | [diff] [blame] | 901 | register ssize_t |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 902 | i, |
| 903 | x; |
| 904 | |
| 905 | i=(2*y+1)+y*columns; |
| 906 | if (polarity > 0) |
| 907 | for (x=0; x < (ssize_t) columns; x++) |
| 908 | { |
cristy | c058afd | 2012-10-31 11:26:53 +0000 | [diff] [blame] | 909 | v=(MagickRealType) p[i]; |
| 910 | if ((MagickRealType) r[i] >= (v+ScaleCharToQuantum(2))) |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 911 | v+=ScaleCharToQuantum(1); |
| 912 | q[i]=(Quantum) v; |
| 913 | i++; |
| 914 | } |
| 915 | else |
| 916 | for (x=0; x < (ssize_t) columns; x++) |
| 917 | { |
cristy | c058afd | 2012-10-31 11:26:53 +0000 | [diff] [blame] | 918 | v=(MagickRealType) p[i]; |
| 919 | if ((MagickRealType) r[i] <= (v-ScaleCharToQuantum(2))) |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 920 | v-=ScaleCharToQuantum(1); |
| 921 | q[i]=(Quantum) v; |
| 922 | i++; |
| 923 | } |
| 924 | } |
| 925 | p=f+(columns+2); |
| 926 | q=g+(columns+2); |
| 927 | r=q+(y_offset*(columns+2)+x_offset); |
| 928 | s=q-(y_offset*(columns+2)+x_offset); |
cristy | ff8e85a | 2012-01-18 13:36:20 +0000 | [diff] [blame] | 929 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | d643247 | 2013-01-06 16:56:13 +0000 | [diff] [blame] | 930 | #pragma omp parallel for schedule(static,4) \ |
cristy | 64c10cd | 2013-01-06 18:40:43 +0000 | [diff] [blame] | 931 | magick_threads(image,image,1,1) |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 932 | #endif |
| 933 | for (y=0; y < (ssize_t) rows; y++) |
| 934 | { |
cristy | 7b4b886 | 2012-01-16 19:52:19 +0000 | [diff] [blame] | 935 | register ssize_t |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 936 | i, |
| 937 | x; |
| 938 | |
cristy | c058afd | 2012-10-31 11:26:53 +0000 | [diff] [blame] | 939 | MagickRealType |
cristy | 7b4b886 | 2012-01-16 19:52:19 +0000 | [diff] [blame] | 940 | v; |
| 941 | |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 942 | i=(2*y+1)+y*columns; |
| 943 | if (polarity > 0) |
| 944 | for (x=0; x < (ssize_t) columns; x++) |
| 945 | { |
cristy | c058afd | 2012-10-31 11:26:53 +0000 | [diff] [blame] | 946 | v=(MagickRealType) q[i]; |
| 947 | if (((MagickRealType) s[i] >= (v+ScaleCharToQuantum(2))) && |
| 948 | ((MagickRealType) r[i] > v)) |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 949 | v+=ScaleCharToQuantum(1); |
| 950 | p[i]=(Quantum) v; |
| 951 | i++; |
| 952 | } |
| 953 | else |
| 954 | for (x=0; x < (ssize_t) columns; x++) |
| 955 | { |
cristy | c058afd | 2012-10-31 11:26:53 +0000 | [diff] [blame] | 956 | v=(MagickRealType) q[i]; |
| 957 | if (((MagickRealType) s[i] <= (v-ScaleCharToQuantum(2))) && |
| 958 | ((MagickRealType) r[i] < v)) |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 959 | v-=ScaleCharToQuantum(1); |
| 960 | p[i]=(Quantum) v; |
| 961 | i++; |
| 962 | } |
| 963 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 964 | } |
| 965 | |
| 966 | MagickExport Image *DespeckleImage(const Image *image,ExceptionInfo *exception) |
| 967 | { |
| 968 | #define DespeckleImageTag "Despeckle/Image" |
| 969 | |
cristy | 2407fc2 | 2009-09-11 00:55:25 +0000 | [diff] [blame] | 970 | CacheView |
| 971 | *despeckle_view, |
| 972 | *image_view; |
| 973 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 974 | Image |
| 975 | *despeckle_image; |
| 976 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 977 | MagickBooleanType |
| 978 | status; |
| 979 | |
cristy | 7d4aa38 | 2013-06-30 01:59:39 +0000 | [diff] [blame] | 980 | MemoryInfo |
| 981 | *buffer_info, |
| 982 | *pixel_info; |
| 983 | |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 984 | Quantum |
| 985 | *restrict buffer, |
| 986 | *restrict pixels; |
cristy | a63e4a9 | 2011-09-09 00:47:59 +0000 | [diff] [blame] | 987 | |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 988 | register ssize_t |
| 989 | i; |
| 990 | |
| 991 | size_t |
| 992 | length; |
cristy | 117ff17 | 2010-08-15 21:35:32 +0000 | [diff] [blame] | 993 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 994 | static const ssize_t |
cristy | 691a29e | 2009-09-11 00:44:10 +0000 | [diff] [blame] | 995 | X[4] = {0, 1, 1,-1}, |
| 996 | Y[4] = {1, 0, 1, 1}; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 997 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 998 | /* |
| 999 | Allocate despeckled image. |
| 1000 | */ |
| 1001 | assert(image != (const Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 1002 | assert(image->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1003 | if (image->debug != MagickFalse) |
| 1004 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 1005 | assert(exception != (ExceptionInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 1006 | assert(exception->signature == MagickCoreSignature); |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 1007 | despeckle_image=CloneImage(image,0,0,MagickTrue,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1008 | if (despeckle_image == (Image *) NULL) |
| 1009 | return((Image *) NULL); |
cristy | a63e4a9 | 2011-09-09 00:47:59 +0000 | [diff] [blame] | 1010 | status=SetImageStorageClass(despeckle_image,DirectClass,exception); |
| 1011 | if (status == MagickFalse) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1012 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1013 | despeckle_image=DestroyImage(despeckle_image); |
| 1014 | return((Image *) NULL); |
| 1015 | } |
| 1016 | /* |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 1017 | Allocate image buffer. |
| 1018 | */ |
| 1019 | length=(size_t) ((image->columns+2)*(image->rows+2)); |
cristy | 7d4aa38 | 2013-06-30 01:59:39 +0000 | [diff] [blame] | 1020 | pixel_info=AcquireVirtualMemory(length,sizeof(*pixels)); |
| 1021 | buffer_info=AcquireVirtualMemory(length,sizeof(*buffer)); |
| 1022 | if ((pixel_info == (MemoryInfo *) NULL) || |
| 1023 | (buffer_info == (MemoryInfo *) NULL)) |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 1024 | { |
cristy | 7d4aa38 | 2013-06-30 01:59:39 +0000 | [diff] [blame] | 1025 | if (buffer_info != (MemoryInfo *) NULL) |
| 1026 | buffer_info=RelinquishVirtualMemory(buffer_info); |
| 1027 | if (pixel_info != (MemoryInfo *) NULL) |
| 1028 | pixel_info=RelinquishVirtualMemory(pixel_info); |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 1029 | despeckle_image=DestroyImage(despeckle_image); |
| 1030 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 1031 | } |
cristy | 7d4aa38 | 2013-06-30 01:59:39 +0000 | [diff] [blame] | 1032 | pixels=(Quantum *) GetVirtualMemoryBlob(pixel_info); |
| 1033 | buffer=(Quantum *) GetVirtualMemoryBlob(buffer_info); |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 1034 | /* |
| 1035 | Reduce speckle in the image. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1036 | */ |
| 1037 | status=MagickTrue; |
cristy | 46ff267 | 2012-12-14 15:32:26 +0000 | [diff] [blame] | 1038 | image_view=AcquireVirtualCacheView(image,exception); |
| 1039 | despeckle_view=AcquireAuthenticCacheView(despeckle_image,exception); |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 1040 | for (i=0; i < (ssize_t) GetPixelChannels(image); i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1041 | { |
cristy | 633067b | 2013-02-21 01:15:12 +0000 | [diff] [blame] | 1042 | PixelChannel |
| 1043 | channel; |
| 1044 | |
| 1045 | PixelTrait |
| 1046 | despeckle_traits, |
| 1047 | traits; |
| 1048 | |
cristy | c1488b5 | 2011-02-19 18:54:15 +0000 | [diff] [blame] | 1049 | register ssize_t |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 1050 | k, |
cristy | f0ae776 | 2012-01-15 22:04:03 +0000 | [diff] [blame] | 1051 | x; |
cristy | c1488b5 | 2011-02-19 18:54:15 +0000 | [diff] [blame] | 1052 | |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 1053 | ssize_t |
| 1054 | j, |
| 1055 | y; |
| 1056 | |
cristy | 633067b | 2013-02-21 01:15:12 +0000 | [diff] [blame] | 1057 | if (status == MagickFalse) |
| 1058 | continue; |
| 1059 | channel=GetPixelChannelChannel(image,i); |
| 1060 | traits=GetPixelChannelTraits(image,channel); |
| 1061 | despeckle_traits=GetPixelChannelTraits(despeckle_image,channel); |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 1062 | if ((traits == UndefinedPixelTrait) || |
| 1063 | (despeckle_traits == UndefinedPixelTrait)) |
| 1064 | continue; |
| 1065 | if ((despeckle_traits & CopyPixelTrait) != 0) |
| 1066 | continue; |
| 1067 | (void) ResetMagickMemory(pixels,0,length*sizeof(*pixels)); |
| 1068 | j=(ssize_t) image->columns+2; |
| 1069 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | fc830f4 | 2012-01-15 02:45:06 +0000 | [diff] [blame] | 1070 | { |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 1071 | register const Quantum |
| 1072 | *restrict p; |
cristy | fc830f4 | 2012-01-15 02:45:06 +0000 | [diff] [blame] | 1073 | |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 1074 | p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception); |
| 1075 | if (p == (const Quantum *) NULL) |
cristy | f0ae776 | 2012-01-15 22:04:03 +0000 | [diff] [blame] | 1076 | { |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 1077 | status=MagickFalse; |
| 1078 | continue; |
cristy | f0ae776 | 2012-01-15 22:04:03 +0000 | [diff] [blame] | 1079 | } |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 1080 | j++; |
| 1081 | for (x=0; x < (ssize_t) image->columns; x++) |
| 1082 | { |
| 1083 | pixels[j++]=p[i]; |
| 1084 | p+=GetPixelChannels(image); |
cristy | fc830f4 | 2012-01-15 02:45:06 +0000 | [diff] [blame] | 1085 | } |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 1086 | j++; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1087 | } |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 1088 | (void) ResetMagickMemory(buffer,0,length*sizeof(*buffer)); |
| 1089 | for (k=0; k < 4; k++) |
| 1090 | { |
cristy | 4ee2b0c | 2012-05-15 00:30:35 +0000 | [diff] [blame] | 1091 | Hull(image,X[k],Y[k],image->columns,image->rows,1,pixels,buffer); |
| 1092 | Hull(image,-X[k],-Y[k],image->columns,image->rows,1,pixels,buffer); |
| 1093 | Hull(image,-X[k],-Y[k],image->columns,image->rows,-1,pixels,buffer); |
| 1094 | Hull(image,X[k],Y[k],image->columns,image->rows,-1,pixels,buffer); |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 1095 | } |
| 1096 | j=(ssize_t) image->columns+2; |
| 1097 | for (y=0; y < (ssize_t) image->rows; y++) |
| 1098 | { |
| 1099 | MagickBooleanType |
| 1100 | sync; |
| 1101 | |
| 1102 | register Quantum |
| 1103 | *restrict q; |
| 1104 | |
cristy | f7ba773 | 2013-01-22 22:16:21 +0000 | [diff] [blame] | 1105 | q=GetCacheViewAuthenticPixels(despeckle_view,0,y,despeckle_image->columns, |
| 1106 | 1,exception); |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 1107 | if (q == (Quantum *) NULL) |
| 1108 | { |
| 1109 | status=MagickFalse; |
| 1110 | continue; |
| 1111 | } |
| 1112 | j++; |
| 1113 | for (x=0; x < (ssize_t) image->columns; x++) |
| 1114 | { |
| 1115 | SetPixelChannel(despeckle_image,channel,pixels[j++],q); |
| 1116 | q+=GetPixelChannels(despeckle_image); |
| 1117 | } |
| 1118 | sync=SyncCacheViewAuthenticPixels(despeckle_view,exception); |
| 1119 | if (sync == MagickFalse) |
| 1120 | status=MagickFalse; |
| 1121 | j++; |
| 1122 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1123 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 1124 | { |
| 1125 | MagickBooleanType |
| 1126 | proceed; |
| 1127 | |
cristy | 5473bf0 | 2012-01-16 19:15:08 +0000 | [diff] [blame] | 1128 | proceed=SetImageProgress(image,DespeckleImageTag,(MagickOffsetType) i, |
| 1129 | GetPixelChannels(image)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1130 | if (proceed == MagickFalse) |
| 1131 | status=MagickFalse; |
| 1132 | } |
| 1133 | } |
| 1134 | despeckle_view=DestroyCacheView(despeckle_view); |
| 1135 | image_view=DestroyCacheView(image_view); |
cristy | 7d4aa38 | 2013-06-30 01:59:39 +0000 | [diff] [blame] | 1136 | buffer_info=RelinquishVirtualMemory(buffer_info); |
| 1137 | pixel_info=RelinquishVirtualMemory(pixel_info); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1138 | despeckle_image->type=image->type; |
| 1139 | if (status == MagickFalse) |
| 1140 | despeckle_image=DestroyImage(despeckle_image); |
| 1141 | return(despeckle_image); |
| 1142 | } |
| 1143 | |
| 1144 | /* |
| 1145 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1146 | % % |
| 1147 | % % |
| 1148 | % % |
| 1149 | % E d g e I m a g e % |
| 1150 | % % |
| 1151 | % % |
| 1152 | % % |
| 1153 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1154 | % |
| 1155 | % EdgeImage() finds edges in an image. Radius defines the radius of the |
| 1156 | % convolution filter. Use a radius of 0 and EdgeImage() selects a suitable |
| 1157 | % radius for you. |
| 1158 | % |
| 1159 | % The format of the EdgeImage method is: |
| 1160 | % |
| 1161 | % Image *EdgeImage(const Image *image,const double radius, |
cristy | 9dc4c51 | 2013-03-24 01:38:00 +0000 | [diff] [blame] | 1162 | % ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1163 | % |
| 1164 | % A description of each parameter follows: |
| 1165 | % |
| 1166 | % o image: the image. |
| 1167 | % |
| 1168 | % o radius: the radius of the pixel neighborhood. |
| 1169 | % |
| 1170 | % o exception: return any errors or warnings in this structure. |
| 1171 | % |
| 1172 | */ |
| 1173 | MagickExport Image *EdgeImage(const Image *image,const double radius, |
cristy | 9dc4c51 | 2013-03-24 01:38:00 +0000 | [diff] [blame] | 1174 | ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1175 | { |
cristy | 9ab5d04 | 2013-04-28 02:38:26 +0000 | [diff] [blame] | 1176 | Image |
| 1177 | *edge_image; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1178 | |
cristy | 41cbe68 | 2011-07-15 19:12:37 +0000 | [diff] [blame] | 1179 | KernelInfo |
| 1180 | *kernel_info; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1181 | |
cristy | 9ab5d04 | 2013-04-28 02:38:26 +0000 | [diff] [blame] | 1182 | register ssize_t |
| 1183 | i; |
| 1184 | |
| 1185 | size_t |
| 1186 | width; |
cristy | 41cbe68 | 2011-07-15 19:12:37 +0000 | [diff] [blame] | 1187 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1188 | assert(image != (const Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 1189 | assert(image->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1190 | if (image->debug != MagickFalse) |
| 1191 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 1192 | assert(exception != (ExceptionInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 1193 | assert(exception->signature == MagickCoreSignature); |
cristy | 9ab5d04 | 2013-04-28 02:38:26 +0000 | [diff] [blame] | 1194 | width=GetOptimalKernelWidth1D(radius,0.5); |
cristy | 2c57b74 | 2014-10-31 00:40:34 +0000 | [diff] [blame] | 1195 | kernel_info=AcquireKernelInfo((const char *) NULL,exception); |
cristy | 41cbe68 | 2011-07-15 19:12:37 +0000 | [diff] [blame] | 1196 | if (kernel_info == (KernelInfo *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1197 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
cristy | 9ab5d04 | 2013-04-28 02:38:26 +0000 | [diff] [blame] | 1198 | (void) ResetMagickMemory(kernel_info,0,sizeof(*kernel_info)); |
| 1199 | kernel_info->width=width; |
| 1200 | kernel_info->height=width; |
| 1201 | kernel_info->x=(ssize_t) (kernel_info->width-1)/2; |
| 1202 | kernel_info->y=(ssize_t) (kernel_info->height-1)/2; |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 1203 | kernel_info->signature=MagickCoreSignature; |
cristy | 9ab5d04 | 2013-04-28 02:38:26 +0000 | [diff] [blame] | 1204 | kernel_info->values=(MagickRealType *) MagickAssumeAligned( |
| 1205 | AcquireAlignedMemory(kernel_info->width,kernel_info->height* |
| 1206 | sizeof(*kernel_info->values))); |
| 1207 | if (kernel_info->values == (MagickRealType *) NULL) |
| 1208 | { |
| 1209 | kernel_info=DestroyKernelInfo(kernel_info); |
| 1210 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 1211 | } |
| 1212 | for (i=0; i < (ssize_t) (kernel_info->width*kernel_info->height); i++) |
| 1213 | kernel_info->values[i]=(-1.0); |
| 1214 | kernel_info->values[i/2]=(double) kernel_info->width*kernel_info->height-1.0; |
| 1215 | edge_image=MorphologyApply(image,ConvolveMorphology,1,kernel_info, |
cristy | 7f391ce | 2013-03-27 11:03:11 +0000 | [diff] [blame] | 1216 | UndefinedCompositeOp,0.0,exception); |
cristy | 41cbe68 | 2011-07-15 19:12:37 +0000 | [diff] [blame] | 1217 | kernel_info=DestroyKernelInfo(kernel_info); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1218 | return(edge_image); |
| 1219 | } |
| 1220 | |
| 1221 | /* |
| 1222 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1223 | % % |
| 1224 | % % |
| 1225 | % % |
| 1226 | % E m b o s s I m a g e % |
| 1227 | % % |
| 1228 | % % |
| 1229 | % % |
| 1230 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1231 | % |
| 1232 | % EmbossImage() returns a grayscale image with a three-dimensional effect. |
| 1233 | % We convolve the image with a Gaussian operator of the given radius and |
| 1234 | % standard deviation (sigma). For reasonable results, radius should be |
| 1235 | % larger than sigma. Use a radius of 0 and Emboss() selects a suitable |
| 1236 | % radius for you. |
| 1237 | % |
| 1238 | % The format of the EmbossImage method is: |
| 1239 | % |
| 1240 | % Image *EmbossImage(const Image *image,const double radius, |
| 1241 | % const double sigma,ExceptionInfo *exception) |
| 1242 | % |
| 1243 | % A description of each parameter follows: |
| 1244 | % |
| 1245 | % o image: the image. |
| 1246 | % |
| 1247 | % o radius: the radius of the pixel neighborhood. |
| 1248 | % |
| 1249 | % o sigma: the standard deviation of the Gaussian, in pixels. |
| 1250 | % |
| 1251 | % o exception: return any errors or warnings in this structure. |
| 1252 | % |
| 1253 | */ |
| 1254 | MagickExport Image *EmbossImage(const Image *image,const double radius, |
| 1255 | const double sigma,ExceptionInfo *exception) |
| 1256 | { |
cristy | 0cfd567 | 2013-03-26 14:34:25 +0000 | [diff] [blame] | 1257 | double |
| 1258 | gamma, |
| 1259 | normalize; |
| 1260 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1261 | Image |
| 1262 | *emboss_image; |
| 1263 | |
cristy | 41cbe68 | 2011-07-15 19:12:37 +0000 | [diff] [blame] | 1264 | KernelInfo |
| 1265 | *kernel_info; |
| 1266 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1267 | register ssize_t |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 1268 | i; |
| 1269 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1270 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1271 | width; |
| 1272 | |
cristy | 117ff17 | 2010-08-15 21:35:32 +0000 | [diff] [blame] | 1273 | ssize_t |
| 1274 | j, |
| 1275 | k, |
| 1276 | u, |
| 1277 | v; |
| 1278 | |
cristy | 41cbe68 | 2011-07-15 19:12:37 +0000 | [diff] [blame] | 1279 | assert(image != (const Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 1280 | assert(image->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1281 | if (image->debug != MagickFalse) |
| 1282 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 1283 | assert(exception != (ExceptionInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 1284 | assert(exception->signature == MagickCoreSignature); |
cristy | fc0ae53 | 2011-12-06 15:14:45 +0000 | [diff] [blame] | 1285 | width=GetOptimalKernelWidth1D(radius,sigma); |
cristy | 2c57b74 | 2014-10-31 00:40:34 +0000 | [diff] [blame] | 1286 | kernel_info=AcquireKernelInfo((const char *) NULL,exception); |
cristy | 41cbe68 | 2011-07-15 19:12:37 +0000 | [diff] [blame] | 1287 | if (kernel_info == (KernelInfo *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1288 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
cristy | 41cbe68 | 2011-07-15 19:12:37 +0000 | [diff] [blame] | 1289 | kernel_info->width=width; |
| 1290 | kernel_info->height=width; |
cristy | 6b51621 | 2013-03-22 19:20:32 +0000 | [diff] [blame] | 1291 | kernel_info->x=(ssize_t) (width-1)/2; |
| 1292 | kernel_info->y=(ssize_t) (width-1)/2; |
cristy | e42639a | 2012-08-23 01:53:24 +0000 | [diff] [blame] | 1293 | kernel_info->values=(MagickRealType *) MagickAssumeAligned( |
| 1294 | AcquireAlignedMemory(kernel_info->width,kernel_info->width* |
| 1295 | sizeof(*kernel_info->values))); |
cristy | d1e1c22 | 2012-08-13 01:13:28 +0000 | [diff] [blame] | 1296 | if (kernel_info->values == (MagickRealType *) NULL) |
cristy | 41cbe68 | 2011-07-15 19:12:37 +0000 | [diff] [blame] | 1297 | { |
| 1298 | kernel_info=DestroyKernelInfo(kernel_info); |
| 1299 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 1300 | } |
cristy | 35faaa7 | 2013-03-08 12:33:42 +0000 | [diff] [blame] | 1301 | j=(ssize_t) (kernel_info->width-1)/2; |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 1302 | k=j; |
| 1303 | i=0; |
| 1304 | for (v=(-j); v <= j; v++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1305 | { |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 1306 | for (u=(-j); u <= j; u++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1307 | { |
cristy | d1e1c22 | 2012-08-13 01:13:28 +0000 | [diff] [blame] | 1308 | kernel_info->values[i]=(MagickRealType) (((u < 0) || (v < 0) ? -8.0 : |
| 1309 | 8.0)*exp(-((double) u*u+v*v)/(2.0*MagickSigma*MagickSigma))/ |
cristy | 4205a3c | 2010-09-12 20:19:59 +0000 | [diff] [blame] | 1310 | (2.0*MagickPI*MagickSigma*MagickSigma)); |
cristy | 08ee72f | 2013-07-08 19:31:14 +0000 | [diff] [blame] | 1311 | if (u != k) |
| 1312 | kernel_info->values[i]=0.0; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1313 | i++; |
| 1314 | } |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 1315 | k--; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1316 | } |
cristy | 0cfd567 | 2013-03-26 14:34:25 +0000 | [diff] [blame] | 1317 | normalize=0.0; |
| 1318 | for (i=0; i < (ssize_t) (kernel_info->width*kernel_info->height); i++) |
| 1319 | normalize+=kernel_info->values[i]; |
| 1320 | gamma=PerceptibleReciprocal(normalize); |
| 1321 | for (i=0; i < (ssize_t) (kernel_info->width*kernel_info->height); i++) |
| 1322 | kernel_info->values[i]*=gamma; |
cristy | 7f391ce | 2013-03-27 11:03:11 +0000 | [diff] [blame] | 1323 | emboss_image=MorphologyApply(image,ConvolveMorphology,1,kernel_info, |
| 1324 | UndefinedCompositeOp,0.0,exception); |
cristy | 41cbe68 | 2011-07-15 19:12:37 +0000 | [diff] [blame] | 1325 | kernel_info=DestroyKernelInfo(kernel_info); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1326 | if (emboss_image != (Image *) NULL) |
cristy | 6d8c3d7 | 2011-08-22 01:20:01 +0000 | [diff] [blame] | 1327 | (void) EqualizeImage(emboss_image,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1328 | return(emboss_image); |
| 1329 | } |
| 1330 | |
| 1331 | /* |
| 1332 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1333 | % % |
| 1334 | % % |
| 1335 | % % |
| 1336 | % G a u s s i a n B l u r I m a g e % |
| 1337 | % % |
| 1338 | % % |
| 1339 | % % |
| 1340 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1341 | % |
| 1342 | % GaussianBlurImage() blurs an image. We convolve the image with a |
| 1343 | % Gaussian operator of the given radius and standard deviation (sigma). |
| 1344 | % For reasonable results, the radius should be larger than sigma. Use a |
| 1345 | % radius of 0 and GaussianBlurImage() selects a suitable radius for you |
| 1346 | % |
| 1347 | % The format of the GaussianBlurImage method is: |
| 1348 | % |
| 1349 | % Image *GaussianBlurImage(const Image *image,onst double radius, |
cristy | d89705a | 2012-01-20 02:52:24 +0000 | [diff] [blame] | 1350 | % const double sigma,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1351 | % |
| 1352 | % A description of each parameter follows: |
| 1353 | % |
| 1354 | % o image: the image. |
| 1355 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1356 | % o radius: the radius of the Gaussian, in pixels, not counting the center |
| 1357 | % pixel. |
| 1358 | % |
| 1359 | % o sigma: the standard deviation of the Gaussian, in pixels. |
| 1360 | % |
| 1361 | % o exception: return any errors or warnings in this structure. |
| 1362 | % |
| 1363 | */ |
cristy | 41cbe68 | 2011-07-15 19:12:37 +0000 | [diff] [blame] | 1364 | MagickExport Image *GaussianBlurImage(const Image *image,const double radius, |
cristy | d89705a | 2012-01-20 02:52:24 +0000 | [diff] [blame] | 1365 | const double sigma,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1366 | { |
cristy | e6bdb5e | 2013-03-23 18:39:24 +0000 | [diff] [blame] | 1367 | char |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 1368 | geometry[MagickPathExtent]; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1369 | |
cristy | 41cbe68 | 2011-07-15 19:12:37 +0000 | [diff] [blame] | 1370 | KernelInfo |
| 1371 | *kernel_info; |
| 1372 | |
cristy | e6bdb5e | 2013-03-23 18:39:24 +0000 | [diff] [blame] | 1373 | Image |
| 1374 | *blur_image; |
cristy | 117ff17 | 2010-08-15 21:35:32 +0000 | [diff] [blame] | 1375 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1376 | assert(image != (const Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 1377 | assert(image->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1378 | if (image->debug != MagickFalse) |
| 1379 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 1380 | assert(exception != (ExceptionInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 1381 | assert(exception->signature == MagickCoreSignature); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 1382 | (void) FormatLocaleString(geometry,MagickPathExtent,"gaussian:%.20gx%.20g", |
cristy | e6bdb5e | 2013-03-23 18:39:24 +0000 | [diff] [blame] | 1383 | radius,sigma); |
cristy | 2c57b74 | 2014-10-31 00:40:34 +0000 | [diff] [blame] | 1384 | kernel_info=AcquireKernelInfo(geometry,exception); |
cristy | 41cbe68 | 2011-07-15 19:12:37 +0000 | [diff] [blame] | 1385 | if (kernel_info == (KernelInfo *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1386 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
cristy | 7f391ce | 2013-03-27 11:03:11 +0000 | [diff] [blame] | 1387 | blur_image=MorphologyApply(image,ConvolveMorphology,1,kernel_info, |
| 1388 | UndefinedCompositeOp,0.0,exception); |
cristy | 41cbe68 | 2011-07-15 19:12:37 +0000 | [diff] [blame] | 1389 | kernel_info=DestroyKernelInfo(kernel_info); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1390 | return(blur_image); |
| 1391 | } |
| 1392 | |
| 1393 | /* |
| 1394 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1395 | % % |
| 1396 | % % |
| 1397 | % % |
cristy | 3b207f8 | 2014-09-27 14:21:20 +0000 | [diff] [blame] | 1398 | % K u w a h a r a I m a g e % |
| 1399 | % % |
| 1400 | % % |
| 1401 | % % |
| 1402 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1403 | % |
cristy | a7c7622 | 2014-09-30 09:53:07 +0000 | [diff] [blame] | 1404 | % KuwaharaImage() is an edge preserving noise reduction filter. |
cristy | 3b207f8 | 2014-09-27 14:21:20 +0000 | [diff] [blame] | 1405 | % |
| 1406 | % The format of the KuwaharaImage method is: |
| 1407 | % |
cristy | dea96f3 | 2014-10-05 23:27:21 +0000 | [diff] [blame] | 1408 | % Image *KuwaharaImage(const Image *image,const double radius, |
cristy | 3b207f8 | 2014-09-27 14:21:20 +0000 | [diff] [blame] | 1409 | % const double sigma,ExceptionInfo *exception) |
| 1410 | % |
| 1411 | % A description of each parameter follows: |
| 1412 | % |
| 1413 | % o image: the image. |
| 1414 | % |
cristy | dea96f3 | 2014-10-05 23:27:21 +0000 | [diff] [blame] | 1415 | % o radius: the square window radius. |
cristy | 3b207f8 | 2014-09-27 14:21:20 +0000 | [diff] [blame] | 1416 | % |
| 1417 | % o sigma: the standard deviation of the Gaussian, in pixels. |
| 1418 | % |
| 1419 | % o exception: return any errors or warnings in this structure. |
| 1420 | % |
| 1421 | */ |
cristy | e67edc3 | 2014-10-02 13:39:48 +0000 | [diff] [blame] | 1422 | |
| 1423 | static inline MagickRealType GetMeanLuma(const Image *restrict image, |
| 1424 | const double *restrict pixel) |
| 1425 | { |
| 1426 | if (image->colorspace == GRAYColorspace) |
| 1427 | return((MagickRealType) pixel[image->channel_map[GrayPixelChannel].offset]); |
| 1428 | return(0.212656f*pixel[image->channel_map[RedPixelChannel].offset]+ |
| 1429 | 0.715158f*pixel[image->channel_map[GreenPixelChannel].offset]+ |
| 1430 | 0.072186f*pixel[image->channel_map[BluePixelChannel].offset]); /* Rec709 */ |
| 1431 | } |
| 1432 | |
cristy | dea96f3 | 2014-10-05 23:27:21 +0000 | [diff] [blame] | 1433 | MagickExport Image *KuwaharaImage(const Image *image,const double radius, |
cristy | 3b207f8 | 2014-09-27 14:21:20 +0000 | [diff] [blame] | 1434 | const double sigma,ExceptionInfo *exception) |
| 1435 | { |
cristy | 51b20df | 2014-09-29 18:52:28 +0000 | [diff] [blame] | 1436 | #define KuwaharaImageTag "Kuwahara/Image" |
cristy | 3b207f8 | 2014-09-27 14:21:20 +0000 | [diff] [blame] | 1437 | |
cristy | 51b20df | 2014-09-29 18:52:28 +0000 | [diff] [blame] | 1438 | CacheView |
cristy | ee31ab8 | 2014-10-06 11:35:27 +0000 | [diff] [blame] | 1439 | *image_view, |
cristy | 51b20df | 2014-09-29 18:52:28 +0000 | [diff] [blame] | 1440 | *kuwahara_view; |
cristy | 3b207f8 | 2014-09-27 14:21:20 +0000 | [diff] [blame] | 1441 | |
| 1442 | Image |
cristy | 0562d77 | 2014-10-01 12:33:56 +0000 | [diff] [blame] | 1443 | *gaussian_image, |
cristy | 3b207f8 | 2014-09-27 14:21:20 +0000 | [diff] [blame] | 1444 | *kuwahara_image; |
| 1445 | |
cristy | 51b20df | 2014-09-29 18:52:28 +0000 | [diff] [blame] | 1446 | MagickBooleanType |
| 1447 | status; |
| 1448 | |
| 1449 | MagickOffsetType |
| 1450 | progress; |
| 1451 | |
cristy | a68a3bd | 2014-10-05 20:57:45 +0000 | [diff] [blame] | 1452 | size_t |
cristy | dea96f3 | 2014-10-05 23:27:21 +0000 | [diff] [blame] | 1453 | width; |
cristy | a68a3bd | 2014-10-05 20:57:45 +0000 | [diff] [blame] | 1454 | |
cristy | 51b20df | 2014-09-29 18:52:28 +0000 | [diff] [blame] | 1455 | ssize_t |
| 1456 | y; |
| 1457 | |
| 1458 | /* |
cristy | b4a9d38 | 2014-10-04 14:06:13 +0000 | [diff] [blame] | 1459 | Initialize Kuwahara image attributes. |
cristy | 51b20df | 2014-09-29 18:52:28 +0000 | [diff] [blame] | 1460 | */ |
| 1461 | assert(image != (Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 1462 | assert(image->signature == MagickCoreSignature); |
cristy | 3b207f8 | 2014-09-27 14:21:20 +0000 | [diff] [blame] | 1463 | if (image->debug != MagickFalse) |
| 1464 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 1465 | assert(exception != (ExceptionInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 1466 | assert(exception->signature == MagickCoreSignature); |
cristy | dea96f3 | 2014-10-05 23:27:21 +0000 | [diff] [blame] | 1467 | width=(size_t) radius+1; |
| 1468 | gaussian_image=BlurImage(image,radius,sigma,exception); |
cristy | c70ee66 | 2014-10-01 14:55:15 +0000 | [diff] [blame] | 1469 | if (gaussian_image == (Image *) NULL) |
cristy | 0562d77 | 2014-10-01 12:33:56 +0000 | [diff] [blame] | 1470 | return((Image *) NULL); |
cristy | 51b20df | 2014-09-29 18:52:28 +0000 | [diff] [blame] | 1471 | kuwahara_image=CloneImage(image,image->columns,image->rows,MagickTrue, |
| 1472 | exception); |
| 1473 | if (kuwahara_image == (Image *) NULL) |
cristy | 0562d77 | 2014-10-01 12:33:56 +0000 | [diff] [blame] | 1474 | { |
| 1475 | gaussian_image=DestroyImage(gaussian_image); |
| 1476 | return((Image *) NULL); |
| 1477 | } |
cristy | 51b20df | 2014-09-29 18:52:28 +0000 | [diff] [blame] | 1478 | if (SetImageStorageClass(kuwahara_image,DirectClass,exception) == MagickFalse) |
| 1479 | { |
cristy | 0562d77 | 2014-10-01 12:33:56 +0000 | [diff] [blame] | 1480 | gaussian_image=DestroyImage(gaussian_image); |
cristy | 51b20df | 2014-09-29 18:52:28 +0000 | [diff] [blame] | 1481 | kuwahara_image=DestroyImage(kuwahara_image); |
| 1482 | return((Image *) NULL); |
| 1483 | } |
| 1484 | /* |
cristy | d1bc64d | 2014-09-30 09:52:12 +0000 | [diff] [blame] | 1485 | Edge preserving noise reduction filter. |
cristy | 51b20df | 2014-09-29 18:52:28 +0000 | [diff] [blame] | 1486 | */ |
| 1487 | status=MagickTrue; |
| 1488 | progress=0; |
cristy | ee31ab8 | 2014-10-06 11:35:27 +0000 | [diff] [blame] | 1489 | image_view=AcquireVirtualCacheView(gaussian_image,exception); |
cristy | 51b20df | 2014-09-29 18:52:28 +0000 | [diff] [blame] | 1490 | kuwahara_view=AcquireAuthenticCacheView(kuwahara_image,exception); |
| 1491 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 1492 | #pragma omp parallel for schedule(static,4) shared(progress,status) \ |
| 1493 | magick_threads(image,kuwahara_image,image->rows,1) |
| 1494 | #endif |
| 1495 | for (y=0; y < (ssize_t) image->rows; y++) |
| 1496 | { |
| 1497 | register Quantum |
| 1498 | *restrict q; |
| 1499 | |
| 1500 | register ssize_t |
| 1501 | x; |
| 1502 | |
| 1503 | if (status == MagickFalse) |
| 1504 | continue; |
| 1505 | q=QueueCacheViewAuthenticPixels(kuwahara_view,0,y,kuwahara_image->columns,1, |
| 1506 | exception); |
| 1507 | if (q == (Quantum *) NULL) |
| 1508 | { |
| 1509 | status=MagickFalse; |
| 1510 | continue; |
| 1511 | } |
| 1512 | for (x=0; x < (ssize_t) image->columns; x++) |
| 1513 | { |
cristy | bc8db77 | 2014-09-29 20:57:24 +0000 | [diff] [blame] | 1514 | const Quantum |
cristy | ee31ab8 | 2014-10-06 11:35:27 +0000 | [diff] [blame] | 1515 | *restrict p; |
cristy | bc8db77 | 2014-09-29 20:57:24 +0000 | [diff] [blame] | 1516 | |
cristy | b480061 | 2014-09-29 22:30:01 +0000 | [diff] [blame] | 1517 | double |
cristy | bfcd1be | 2014-10-03 22:39:11 +0000 | [diff] [blame] | 1518 | min_variance; |
cristy | 7096502 | 2014-09-29 23:26:43 +0000 | [diff] [blame] | 1519 | |
cristy | bfcd1be | 2014-10-03 22:39:11 +0000 | [diff] [blame] | 1520 | RectangleInfo |
cristy | ee31ab8 | 2014-10-06 11:35:27 +0000 | [diff] [blame] | 1521 | quadrant, |
| 1522 | target; |
cristy | b480061 | 2014-09-29 22:30:01 +0000 | [diff] [blame] | 1523 | |
cristy | ee31ab8 | 2014-10-06 11:35:27 +0000 | [diff] [blame] | 1524 | register size_t |
| 1525 | i; |
| 1526 | |
cristy | ea71549 | 2014-10-03 16:27:53 +0000 | [diff] [blame] | 1527 | min_variance=MagickMaximumValue; |
cristy | ee31ab8 | 2014-10-06 11:35:27 +0000 | [diff] [blame] | 1528 | SetGeometry(gaussian_image,&target); |
| 1529 | quadrant.width=width; |
| 1530 | quadrant.height=width; |
cristy | b480061 | 2014-09-29 22:30:01 +0000 | [diff] [blame] | 1531 | for (i=0; i < 4; i++) |
| 1532 | { |
cristy | e67edc3 | 2014-10-02 13:39:48 +0000 | [diff] [blame] | 1533 | const Quantum |
| 1534 | *restrict k; |
| 1535 | |
cristy | b480061 | 2014-09-29 22:30:01 +0000 | [diff] [blame] | 1536 | double |
cristy | b480061 | 2014-09-29 22:30:01 +0000 | [diff] [blame] | 1537 | mean[MaxPixelChannels], |
cristy | 9e366d3 | 2014-09-30 18:45:56 +0000 | [diff] [blame] | 1538 | variance; |
cristy | b480061 | 2014-09-29 22:30:01 +0000 | [diff] [blame] | 1539 | |
cristy | ee31ab8 | 2014-10-06 11:35:27 +0000 | [diff] [blame] | 1540 | register ssize_t |
cristy | fa97125 | 2014-10-05 23:55:56 +0000 | [diff] [blame] | 1541 | n; |
cristy | b480061 | 2014-09-29 22:30:01 +0000 | [diff] [blame] | 1542 | |
cristy | ee31ab8 | 2014-10-06 11:35:27 +0000 | [diff] [blame] | 1543 | ssize_t |
| 1544 | j; |
| 1545 | |
| 1546 | quadrant.x=x; |
| 1547 | quadrant.y=y; |
| 1548 | switch (i) |
| 1549 | { |
| 1550 | case 0: |
| 1551 | { |
| 1552 | quadrant.x=x-(ssize_t) (width-1); |
| 1553 | quadrant.y=y-(ssize_t) (width-1); |
| 1554 | break; |
| 1555 | } |
| 1556 | case 1: |
| 1557 | { |
| 1558 | quadrant.y=y-(ssize_t) (width-1); |
| 1559 | break; |
| 1560 | } |
| 1561 | case 2: |
| 1562 | { |
| 1563 | quadrant.x=x-(ssize_t) (width-1); |
| 1564 | break; |
| 1565 | } |
| 1566 | case 3: |
| 1567 | default: |
| 1568 | break; |
| 1569 | } |
| 1570 | p=GetCacheViewVirtualPixels(image_view,quadrant.x,quadrant.y, |
| 1571 | quadrant.width,quadrant.height,exception); |
| 1572 | if (p == (const Quantum *) NULL) |
| 1573 | break; |
| 1574 | for (j=0; j < (ssize_t) GetPixelChannels(gaussian_image); j++) |
cristy | b480061 | 2014-09-29 22:30:01 +0000 | [diff] [blame] | 1575 | mean[j]=0.0; |
cristy | ee31ab8 | 2014-10-06 11:35:27 +0000 | [diff] [blame] | 1576 | k=p; |
cristy | fa97125 | 2014-10-05 23:55:56 +0000 | [diff] [blame] | 1577 | for (n=0; n < (ssize_t) (width*width); n++) |
cristy | e67edc3 | 2014-10-02 13:39:48 +0000 | [diff] [blame] | 1578 | { |
cristy | ee31ab8 | 2014-10-06 11:35:27 +0000 | [diff] [blame] | 1579 | for (j=0; j < (ssize_t) GetPixelChannels(gaussian_image); j++) |
cristy | e67edc3 | 2014-10-02 13:39:48 +0000 | [diff] [blame] | 1580 | mean[j]+=(double) k[j]; |
| 1581 | k+=GetPixelChannels(image); |
| 1582 | } |
cristy | ee31ab8 | 2014-10-06 11:35:27 +0000 | [diff] [blame] | 1583 | for (j=0; j < (ssize_t) GetPixelChannels(gaussian_image); j++) |
cristy | dea96f3 | 2014-10-05 23:27:21 +0000 | [diff] [blame] | 1584 | mean[j]/=(double) (width*width); |
cristy | ee31ab8 | 2014-10-06 11:35:27 +0000 | [diff] [blame] | 1585 | k=p; |
cristy | e67edc3 | 2014-10-02 13:39:48 +0000 | [diff] [blame] | 1586 | variance=0.0; |
cristy | fa97125 | 2014-10-05 23:55:56 +0000 | [diff] [blame] | 1587 | for (n=0; n < (ssize_t) (width*width); n++) |
cristy | b480061 | 2014-09-29 22:30:01 +0000 | [diff] [blame] | 1588 | { |
cristy | 9e366d3 | 2014-09-30 18:45:56 +0000 | [diff] [blame] | 1589 | double |
| 1590 | luma; |
| 1591 | |
cristy | ee31ab8 | 2014-10-06 11:35:27 +0000 | [diff] [blame] | 1592 | luma=GetPixelLuma(gaussian_image,k); |
cristy | e67edc3 | 2014-10-02 13:39:48 +0000 | [diff] [blame] | 1593 | variance+=(luma-GetMeanLuma(gaussian_image,mean))* |
| 1594 | (luma-GetMeanLuma(gaussian_image,mean)); |
| 1595 | k+=GetPixelChannels(image); |
cristy | 7096502 | 2014-09-29 23:26:43 +0000 | [diff] [blame] | 1596 | } |
cristy | 9e366d3 | 2014-09-30 18:45:56 +0000 | [diff] [blame] | 1597 | if (variance < min_variance) |
| 1598 | { |
| 1599 | min_variance=variance; |
cristy | ee31ab8 | 2014-10-06 11:35:27 +0000 | [diff] [blame] | 1600 | target=quadrant; |
cristy | 9e366d3 | 2014-09-30 18:45:56 +0000 | [diff] [blame] | 1601 | } |
cristy | b480061 | 2014-09-29 22:30:01 +0000 | [diff] [blame] | 1602 | } |
cristy | ee31ab8 | 2014-10-06 11:35:27 +0000 | [diff] [blame] | 1603 | if (i < 4) |
| 1604 | { |
| 1605 | status=MagickFalse; |
| 1606 | break; |
| 1607 | } |
| 1608 | status=InterpolatePixelChannels(gaussian_image,image_view,kuwahara_image, |
| 1609 | UndefinedInterpolatePixel,(double) target.x+target.width/2.0,(double) |
| 1610 | target.y+target.height/2.0,q,exception); |
cristy | 51b20df | 2014-09-29 18:52:28 +0000 | [diff] [blame] | 1611 | q+=GetPixelChannels(kuwahara_image); |
| 1612 | } |
| 1613 | if (SyncCacheViewAuthenticPixels(kuwahara_view,exception) == MagickFalse) |
| 1614 | status=MagickFalse; |
| 1615 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 1616 | { |
| 1617 | MagickBooleanType |
| 1618 | proceed; |
| 1619 | |
| 1620 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 1621 | #pragma omp critical (MagickCore_KuwaharaImage) |
| 1622 | #endif |
| 1623 | proceed=SetImageProgress(image,KuwaharaImageTag,progress++,image->rows); |
| 1624 | if (proceed == MagickFalse) |
| 1625 | status=MagickFalse; |
| 1626 | } |
| 1627 | } |
| 1628 | kuwahara_view=DestroyCacheView(kuwahara_view); |
cristy | ee31ab8 | 2014-10-06 11:35:27 +0000 | [diff] [blame] | 1629 | image_view=DestroyCacheView(image_view); |
cristy | 0562d77 | 2014-10-01 12:33:56 +0000 | [diff] [blame] | 1630 | gaussian_image=DestroyImage(gaussian_image); |
cristy | 51b20df | 2014-09-29 18:52:28 +0000 | [diff] [blame] | 1631 | if (status == MagickFalse) |
| 1632 | kuwahara_image=DestroyImage(kuwahara_image); |
cristy | 3b207f8 | 2014-09-27 14:21:20 +0000 | [diff] [blame] | 1633 | return(kuwahara_image); |
| 1634 | } |
| 1635 | |
| 1636 | /* |
| 1637 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1638 | % % |
| 1639 | % % |
| 1640 | % % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1641 | % M o t i o n B l u r I m a g e % |
| 1642 | % % |
| 1643 | % % |
| 1644 | % % |
| 1645 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1646 | % |
| 1647 | % MotionBlurImage() simulates motion blur. We convolve the image with a |
| 1648 | % Gaussian operator of the given radius and standard deviation (sigma). |
| 1649 | % For reasonable results, radius should be larger than sigma. Use a |
| 1650 | % radius of 0 and MotionBlurImage() selects a suitable radius for you. |
| 1651 | % Angle gives the angle of the blurring motion. |
| 1652 | % |
| 1653 | % Andrew Protano contributed this effect. |
| 1654 | % |
| 1655 | % The format of the MotionBlurImage method is: |
| 1656 | % |
| 1657 | % Image *MotionBlurImage(const Image *image,const double radius, |
cristy | aa2c16c | 2012-03-25 22:21:35 +0000 | [diff] [blame] | 1658 | % const double sigma,const double angle,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1659 | % |
| 1660 | % A description of each parameter follows: |
| 1661 | % |
| 1662 | % o image: the image. |
| 1663 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1664 | % o radius: the radius of the Gaussian, in pixels, not counting |
| 1665 | % the center pixel. |
| 1666 | % |
| 1667 | % o sigma: the standard deviation of the Gaussian, in pixels. |
| 1668 | % |
cristy | cee9711 | 2010-05-28 00:44:52 +0000 | [diff] [blame] | 1669 | % o angle: Apply the effect along this angle. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1670 | % |
| 1671 | % o exception: return any errors or warnings in this structure. |
| 1672 | % |
| 1673 | */ |
| 1674 | |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 1675 | static MagickRealType *GetMotionBlurKernel(const size_t width, |
| 1676 | const double sigma) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1677 | { |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 1678 | MagickRealType |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 1679 | *kernel, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1680 | normalize; |
| 1681 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1682 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1683 | i; |
| 1684 | |
| 1685 | /* |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 1686 | Generate a 1-D convolution kernel. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1687 | */ |
| 1688 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); |
cristy | e42639a | 2012-08-23 01:53:24 +0000 | [diff] [blame] | 1689 | kernel=(MagickRealType *) MagickAssumeAligned(AcquireAlignedMemory((size_t) |
| 1690 | width,sizeof(*kernel))); |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 1691 | if (kernel == (MagickRealType *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1692 | return(kernel); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1693 | normalize=0.0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1694 | for (i=0; i < (ssize_t) width; i++) |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 1695 | { |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 1696 | kernel[i]=(MagickRealType) (exp((-((double) i*i)/(double) (2.0*MagickSigma* |
cristy | 4205a3c | 2010-09-12 20:19:59 +0000 | [diff] [blame] | 1697 | MagickSigma)))/(MagickSQ2PI*MagickSigma)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1698 | normalize+=kernel[i]; |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 1699 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1700 | for (i=0; i < (ssize_t) width; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1701 | kernel[i]/=normalize; |
| 1702 | return(kernel); |
| 1703 | } |
| 1704 | |
cristy | a63e4a9 | 2011-09-09 00:47:59 +0000 | [diff] [blame] | 1705 | MagickExport Image *MotionBlurImage(const Image *image,const double radius, |
cristy | aa2c16c | 2012-03-25 22:21:35 +0000 | [diff] [blame] | 1706 | const double sigma,const double angle,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1707 | { |
cristy | 590c829 | 2013-02-21 01:37:36 +0000 | [diff] [blame] | 1708 | #define BlurImageTag "Blur/Image" |
| 1709 | |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 1710 | CacheView |
| 1711 | *blur_view, |
cristy | 8b49f38 | 2012-01-17 03:11:03 +0000 | [diff] [blame] | 1712 | *image_view, |
| 1713 | *motion_view; |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 1714 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1715 | Image |
| 1716 | *blur_image; |
| 1717 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1718 | MagickBooleanType |
| 1719 | status; |
| 1720 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1721 | MagickOffsetType |
| 1722 | progress; |
| 1723 | |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 1724 | MagickRealType |
| 1725 | *kernel; |
| 1726 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1727 | OffsetInfo |
| 1728 | *offset; |
| 1729 | |
| 1730 | PointInfo |
| 1731 | point; |
| 1732 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1733 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1734 | i; |
| 1735 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1736 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1737 | width; |
| 1738 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1739 | ssize_t |
| 1740 | y; |
| 1741 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1742 | assert(image != (Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 1743 | assert(image->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1744 | if (image->debug != MagickFalse) |
| 1745 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 1746 | assert(exception != (ExceptionInfo *) NULL); |
| 1747 | width=GetOptimalKernelWidth1D(radius,sigma); |
| 1748 | kernel=GetMotionBlurKernel(width,sigma); |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 1749 | if (kernel == (MagickRealType *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1750 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 1751 | offset=(OffsetInfo *) AcquireQuantumMemory(width,sizeof(*offset)); |
| 1752 | if (offset == (OffsetInfo *) NULL) |
| 1753 | { |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 1754 | kernel=(MagickRealType *) RelinquishAlignedMemory(kernel); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1755 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 1756 | } |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 1757 | blur_image=CloneImage(image,image->columns,image->rows,MagickTrue,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1758 | if (blur_image == (Image *) NULL) |
| 1759 | { |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 1760 | kernel=(MagickRealType *) RelinquishAlignedMemory(kernel); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1761 | offset=(OffsetInfo *) RelinquishMagickMemory(offset); |
| 1762 | return((Image *) NULL); |
| 1763 | } |
cristy | 574cc26 | 2011-08-05 01:23:58 +0000 | [diff] [blame] | 1764 | if (SetImageStorageClass(blur_image,DirectClass,exception) == MagickFalse) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1765 | { |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 1766 | kernel=(MagickRealType *) RelinquishAlignedMemory(kernel); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1767 | offset=(OffsetInfo *) RelinquishMagickMemory(offset); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1768 | blur_image=DestroyImage(blur_image); |
| 1769 | return((Image *) NULL); |
| 1770 | } |
| 1771 | point.x=(double) width*sin(DegreesToRadians(angle)); |
| 1772 | point.y=(double) width*cos(DegreesToRadians(angle)); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1773 | for (i=0; i < (ssize_t) width; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1774 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1775 | offset[i].x=(ssize_t) ceil((double) (i*point.y)/hypot(point.x,point.y)-0.5); |
| 1776 | 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] | 1777 | } |
| 1778 | /* |
| 1779 | Motion blur image. |
| 1780 | */ |
| 1781 | status=MagickTrue; |
| 1782 | progress=0; |
cristy | 46ff267 | 2012-12-14 15:32:26 +0000 | [diff] [blame] | 1783 | image_view=AcquireVirtualCacheView(image,exception); |
| 1784 | motion_view=AcquireVirtualCacheView(image,exception); |
| 1785 | blur_view=AcquireAuthenticCacheView(blur_image,exception); |
cristy | b557a15 | 2011-02-22 12:14:30 +0000 | [diff] [blame] | 1786 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | ac245f8 | 2012-05-05 17:13:57 +0000 | [diff] [blame] | 1787 | #pragma omp parallel for schedule(static,4) shared(progress,status) \ |
cristy | 5e6b259 | 2012-12-19 14:08:11 +0000 | [diff] [blame] | 1788 | magick_threads(image,blur_image,image->rows,1) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1789 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1790 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1791 | { |
cristy | f7ef025 | 2011-09-09 14:50:06 +0000 | [diff] [blame] | 1792 | register const Quantum |
| 1793 | *restrict p; |
| 1794 | |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 1795 | register Quantum |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 1796 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1797 | |
cristy | 117ff17 | 2010-08-15 21:35:32 +0000 | [diff] [blame] | 1798 | register ssize_t |
| 1799 | x; |
| 1800 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1801 | if (status == MagickFalse) |
| 1802 | continue; |
cristy | 8b49f38 | 2012-01-17 03:11:03 +0000 | [diff] [blame] | 1803 | p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception); |
| 1804 | q=QueueCacheViewAuthenticPixels(blur_view,0,y,blur_image->columns,1, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1805 | exception); |
cristy | f7ef025 | 2011-09-09 14:50:06 +0000 | [diff] [blame] | 1806 | if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1807 | { |
| 1808 | status=MagickFalse; |
| 1809 | continue; |
| 1810 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1811 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1812 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1813 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1814 | i; |
| 1815 | |
cristy | f7ef025 | 2011-09-09 14:50:06 +0000 | [diff] [blame] | 1816 | for (i=0; i < (ssize_t) GetPixelChannels(image); i++) |
| 1817 | { |
cristy | a19f1d7 | 2012-08-07 18:24:38 +0000 | [diff] [blame] | 1818 | double |
cristy | f7ef025 | 2011-09-09 14:50:06 +0000 | [diff] [blame] | 1819 | alpha, |
| 1820 | gamma, |
| 1821 | pixel; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1822 | |
cristy | 633067b | 2013-02-21 01:15:12 +0000 | [diff] [blame] | 1823 | PixelChannel |
| 1824 | channel; |
| 1825 | |
| 1826 | PixelTrait |
| 1827 | blur_traits, |
| 1828 | traits; |
| 1829 | |
cristy | f7ef025 | 2011-09-09 14:50:06 +0000 | [diff] [blame] | 1830 | register const Quantum |
| 1831 | *restrict r; |
| 1832 | |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 1833 | register MagickRealType |
cristy | f7ef025 | 2011-09-09 14:50:06 +0000 | [diff] [blame] | 1834 | *restrict k; |
| 1835 | |
| 1836 | register ssize_t |
| 1837 | j; |
| 1838 | |
cristy | 633067b | 2013-02-21 01:15:12 +0000 | [diff] [blame] | 1839 | channel=GetPixelChannelChannel(image,i); |
| 1840 | traits=GetPixelChannelTraits(image,channel); |
| 1841 | blur_traits=GetPixelChannelTraits(blur_image,channel); |
cristy | f7ef025 | 2011-09-09 14:50:06 +0000 | [diff] [blame] | 1842 | if ((traits == UndefinedPixelTrait) || |
| 1843 | (blur_traits == UndefinedPixelTrait)) |
| 1844 | continue; |
cristy | 1eced09 | 2012-08-10 23:10:56 +0000 | [diff] [blame] | 1845 | if (((blur_traits & CopyPixelTrait) != 0) || |
cristy | 883fde1 | 2013-04-08 00:50:13 +0000 | [diff] [blame] | 1846 | (GetPixelReadMask(image,p) == 0)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1847 | { |
cristy | 0beccfa | 2011-09-25 20:47:53 +0000 | [diff] [blame] | 1848 | SetPixelChannel(blur_image,channel,p[i],q); |
cristy | f7ef025 | 2011-09-09 14:50:06 +0000 | [diff] [blame] | 1849 | continue; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1850 | } |
cristy | f7ef025 | 2011-09-09 14:50:06 +0000 | [diff] [blame] | 1851 | k=kernel; |
cristy | aa2c16c | 2012-03-25 22:21:35 +0000 | [diff] [blame] | 1852 | pixel=0.0; |
cristy | f7ef025 | 2011-09-09 14:50:06 +0000 | [diff] [blame] | 1853 | if ((blur_traits & BlendPixelTrait) == 0) |
| 1854 | { |
| 1855 | for (j=0; j < (ssize_t) width; j++) |
| 1856 | { |
cristy | 8b49f38 | 2012-01-17 03:11:03 +0000 | [diff] [blame] | 1857 | r=GetCacheViewVirtualPixels(motion_view,x+offset[j].x,y+ |
cristy | f7ef025 | 2011-09-09 14:50:06 +0000 | [diff] [blame] | 1858 | offset[j].y,1,1,exception); |
| 1859 | if (r == (const Quantum *) NULL) |
| 1860 | { |
| 1861 | status=MagickFalse; |
| 1862 | continue; |
| 1863 | } |
| 1864 | pixel+=(*k)*r[i]; |
| 1865 | k++; |
| 1866 | } |
cristy | 0beccfa | 2011-09-25 20:47:53 +0000 | [diff] [blame] | 1867 | SetPixelChannel(blur_image,channel,ClampToQuantum(pixel),q); |
cristy | f7ef025 | 2011-09-09 14:50:06 +0000 | [diff] [blame] | 1868 | continue; |
| 1869 | } |
| 1870 | alpha=0.0; |
| 1871 | gamma=0.0; |
| 1872 | for (j=0; j < (ssize_t) width; j++) |
| 1873 | { |
cristy | 8b49f38 | 2012-01-17 03:11:03 +0000 | [diff] [blame] | 1874 | r=GetCacheViewVirtualPixels(motion_view,x+offset[j].x,y+offset[j].y,1, |
cristy | f7ef025 | 2011-09-09 14:50:06 +0000 | [diff] [blame] | 1875 | 1,exception); |
| 1876 | if (r == (const Quantum *) NULL) |
| 1877 | { |
| 1878 | status=MagickFalse; |
| 1879 | continue; |
| 1880 | } |
cristy | a19f1d7 | 2012-08-07 18:24:38 +0000 | [diff] [blame] | 1881 | alpha=(double) (QuantumScale*GetPixelAlpha(image,r)); |
cristy | f7ef025 | 2011-09-09 14:50:06 +0000 | [diff] [blame] | 1882 | pixel+=(*k)*alpha*r[i]; |
| 1883 | gamma+=(*k)*alpha; |
| 1884 | k++; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1885 | } |
cristy | 3e3ec3a | 2012-11-03 23:11:06 +0000 | [diff] [blame] | 1886 | gamma=PerceptibleReciprocal(gamma); |
cristy | 0beccfa | 2011-09-25 20:47:53 +0000 | [diff] [blame] | 1887 | SetPixelChannel(blur_image,channel,ClampToQuantum(gamma*pixel),q); |
cristy | f7ef025 | 2011-09-09 14:50:06 +0000 | [diff] [blame] | 1888 | } |
| 1889 | p+=GetPixelChannels(image); |
cristy | ed23157 | 2011-07-14 02:18:59 +0000 | [diff] [blame] | 1890 | q+=GetPixelChannels(blur_image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1891 | } |
| 1892 | if (SyncCacheViewAuthenticPixels(blur_view,exception) == MagickFalse) |
| 1893 | status=MagickFalse; |
| 1894 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 1895 | { |
| 1896 | MagickBooleanType |
| 1897 | proceed; |
| 1898 | |
cristy | b557a15 | 2011-02-22 12:14:30 +0000 | [diff] [blame] | 1899 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | f856154 | 2012-01-24 00:26:46 +0000 | [diff] [blame] | 1900 | #pragma omp critical (MagickCore_MotionBlurImage) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1901 | #endif |
| 1902 | proceed=SetImageProgress(image,BlurImageTag,progress++,image->rows); |
| 1903 | if (proceed == MagickFalse) |
| 1904 | status=MagickFalse; |
| 1905 | } |
| 1906 | } |
| 1907 | blur_view=DestroyCacheView(blur_view); |
cristy | 8b49f38 | 2012-01-17 03:11:03 +0000 | [diff] [blame] | 1908 | motion_view=DestroyCacheView(motion_view); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1909 | image_view=DestroyCacheView(image_view); |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 1910 | kernel=(MagickRealType *) RelinquishAlignedMemory(kernel); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1911 | offset=(OffsetInfo *) RelinquishMagickMemory(offset); |
| 1912 | if (status == MagickFalse) |
| 1913 | blur_image=DestroyImage(blur_image); |
| 1914 | return(blur_image); |
| 1915 | } |
| 1916 | |
| 1917 | /* |
| 1918 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1919 | % % |
| 1920 | % % |
| 1921 | % % |
| 1922 | % P r e v i e w I m a g e % |
| 1923 | % % |
| 1924 | % % |
| 1925 | % % |
| 1926 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1927 | % |
| 1928 | % PreviewImage() tiles 9 thumbnails of the specified image with an image |
| 1929 | % processing operation applied with varying parameters. This may be helpful |
| 1930 | % pin-pointing an appropriate parameter for a particular image processing |
| 1931 | % operation. |
| 1932 | % |
| 1933 | % The format of the PreviewImages method is: |
| 1934 | % |
| 1935 | % Image *PreviewImages(const Image *image,const PreviewType preview, |
| 1936 | % ExceptionInfo *exception) |
| 1937 | % |
| 1938 | % A description of each parameter follows: |
| 1939 | % |
| 1940 | % o image: the image. |
| 1941 | % |
| 1942 | % o preview: the image processing operation. |
| 1943 | % |
| 1944 | % o exception: return any errors or warnings in this structure. |
| 1945 | % |
| 1946 | */ |
| 1947 | MagickExport Image *PreviewImage(const Image *image,const PreviewType preview, |
| 1948 | ExceptionInfo *exception) |
| 1949 | { |
| 1950 | #define NumberTiles 9 |
| 1951 | #define PreviewImageTag "Preview/Image" |
| 1952 | #define DefaultPreviewGeometry "204x204+10+10" |
| 1953 | |
| 1954 | char |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 1955 | factor[MagickPathExtent], |
| 1956 | label[MagickPathExtent]; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1957 | |
| 1958 | double |
| 1959 | degrees, |
| 1960 | gamma, |
| 1961 | percentage, |
| 1962 | radius, |
| 1963 | sigma, |
| 1964 | threshold; |
| 1965 | |
cristy | bcdf567 | 2012-05-24 22:58:54 +0000 | [diff] [blame] | 1966 | extern const char |
| 1967 | DefaultTileFrame[]; |
| 1968 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1969 | Image |
| 1970 | *images, |
| 1971 | *montage_image, |
| 1972 | *preview_image, |
| 1973 | *thumbnail; |
| 1974 | |
| 1975 | ImageInfo |
| 1976 | *preview_info; |
| 1977 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1978 | MagickBooleanType |
| 1979 | proceed; |
| 1980 | |
| 1981 | MontageInfo |
| 1982 | *montage_info; |
| 1983 | |
| 1984 | QuantizeInfo |
| 1985 | quantize_info; |
| 1986 | |
| 1987 | RectangleInfo |
| 1988 | geometry; |
| 1989 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1990 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1991 | i, |
| 1992 | x; |
| 1993 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1994 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1995 | colors; |
| 1996 | |
cristy | 117ff17 | 2010-08-15 21:35:32 +0000 | [diff] [blame] | 1997 | ssize_t |
| 1998 | y; |
| 1999 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2000 | /* |
| 2001 | Open output image file. |
| 2002 | */ |
| 2003 | assert(image != (Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 2004 | assert(image->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2005 | if (image->debug != MagickFalse) |
| 2006 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 2007 | colors=2; |
| 2008 | degrees=0.0; |
| 2009 | gamma=(-0.2f); |
| 2010 | preview_info=AcquireImageInfo(); |
| 2011 | SetGeometry(image,&geometry); |
| 2012 | (void) ParseMetaGeometry(DefaultPreviewGeometry,&geometry.x,&geometry.y, |
| 2013 | &geometry.width,&geometry.height); |
| 2014 | images=NewImageList(); |
| 2015 | percentage=12.5; |
| 2016 | GetQuantizeInfo(&quantize_info); |
| 2017 | radius=0.0; |
| 2018 | sigma=1.0; |
| 2019 | threshold=0.0; |
| 2020 | x=0; |
| 2021 | y=0; |
| 2022 | for (i=0; i < NumberTiles; i++) |
| 2023 | { |
| 2024 | thumbnail=ThumbnailImage(image,geometry.width,geometry.height,exception); |
| 2025 | if (thumbnail == (Image *) NULL) |
| 2026 | break; |
| 2027 | (void) SetImageProgressMonitor(thumbnail,(MagickProgressMonitor) NULL, |
| 2028 | (void *) NULL); |
cristy | d15e659 | 2011-10-15 00:13:06 +0000 | [diff] [blame] | 2029 | (void) SetImageProperty(thumbnail,"label",DefaultTileLabel,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2030 | if (i == (NumberTiles/2)) |
| 2031 | { |
cristy | 9950d57 | 2011-10-01 18:22:35 +0000 | [diff] [blame] | 2032 | (void) QueryColorCompliance("#dfdfdf",AllCompliance, |
| 2033 | &thumbnail->matte_color,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2034 | AppendImageToList(&images,thumbnail); |
| 2035 | continue; |
| 2036 | } |
| 2037 | switch (preview) |
| 2038 | { |
| 2039 | case RotatePreview: |
| 2040 | { |
| 2041 | degrees+=45.0; |
| 2042 | preview_image=RotateImage(thumbnail,degrees,exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2043 | (void) FormatLocaleString(label,MagickPathExtent,"rotate %g",degrees); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2044 | break; |
| 2045 | } |
| 2046 | case ShearPreview: |
| 2047 | { |
| 2048 | degrees+=5.0; |
| 2049 | preview_image=ShearImage(thumbnail,degrees,degrees,exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2050 | (void) FormatLocaleString(label,MagickPathExtent,"shear %gx%g",degrees, |
cristy | d9fdd23 | 2013-01-19 00:14:59 +0000 | [diff] [blame] | 2051 | 2.0*degrees); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2052 | break; |
| 2053 | } |
| 2054 | case RollPreview: |
| 2055 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2056 | x=(ssize_t) ((i+1)*thumbnail->columns)/NumberTiles; |
| 2057 | y=(ssize_t) ((i+1)*thumbnail->rows)/NumberTiles; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2058 | preview_image=RollImage(thumbnail,x,y,exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2059 | (void) FormatLocaleString(label,MagickPathExtent,"roll %+.20gx%+.20g", |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 2060 | (double) x,(double) y); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2061 | break; |
| 2062 | } |
| 2063 | case HuePreview: |
| 2064 | { |
| 2065 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 2066 | if (preview_image == (Image *) NULL) |
| 2067 | break; |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2068 | (void) FormatLocaleString(factor,MagickPathExtent,"100,100,%g",2.0* |
cristy | d9fdd23 | 2013-01-19 00:14:59 +0000 | [diff] [blame] | 2069 | percentage); |
cristy | 33bd515 | 2011-08-24 01:42:24 +0000 | [diff] [blame] | 2070 | (void) ModulateImage(preview_image,factor,exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2071 | (void) FormatLocaleString(label,MagickPathExtent,"modulate %s",factor); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2072 | break; |
| 2073 | } |
| 2074 | case SaturationPreview: |
| 2075 | { |
| 2076 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 2077 | if (preview_image == (Image *) NULL) |
| 2078 | break; |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2079 | (void) FormatLocaleString(factor,MagickPathExtent,"100,%g",2.0*percentage); |
cristy | 33bd515 | 2011-08-24 01:42:24 +0000 | [diff] [blame] | 2080 | (void) ModulateImage(preview_image,factor,exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2081 | (void) FormatLocaleString(label,MagickPathExtent,"modulate %s",factor); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2082 | break; |
| 2083 | } |
| 2084 | case BrightnessPreview: |
| 2085 | { |
| 2086 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 2087 | if (preview_image == (Image *) NULL) |
| 2088 | break; |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2089 | (void) FormatLocaleString(factor,MagickPathExtent,"%g",2.0*percentage); |
cristy | 33bd515 | 2011-08-24 01:42:24 +0000 | [diff] [blame] | 2090 | (void) ModulateImage(preview_image,factor,exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2091 | (void) FormatLocaleString(label,MagickPathExtent,"modulate %s",factor); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2092 | break; |
| 2093 | } |
| 2094 | case GammaPreview: |
| 2095 | default: |
| 2096 | { |
| 2097 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 2098 | if (preview_image == (Image *) NULL) |
| 2099 | break; |
| 2100 | gamma+=0.4f; |
cristy | b3e7c6c | 2011-07-24 01:43:55 +0000 | [diff] [blame] | 2101 | (void) GammaImage(preview_image,gamma,exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2102 | (void) FormatLocaleString(label,MagickPathExtent,"gamma %g",gamma); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2103 | break; |
| 2104 | } |
| 2105 | case SpiffPreview: |
| 2106 | { |
| 2107 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 2108 | if (preview_image != (Image *) NULL) |
| 2109 | for (x=0; x < i; x++) |
cristy | e23ec9d | 2011-08-16 18:15:40 +0000 | [diff] [blame] | 2110 | (void) ContrastImage(preview_image,MagickTrue,exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2111 | (void) FormatLocaleString(label,MagickPathExtent,"contrast (%.20g)", |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 2112 | (double) i+1); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2113 | break; |
| 2114 | } |
| 2115 | case DullPreview: |
| 2116 | { |
| 2117 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 2118 | if (preview_image == (Image *) NULL) |
| 2119 | break; |
| 2120 | for (x=0; x < i; x++) |
cristy | e23ec9d | 2011-08-16 18:15:40 +0000 | [diff] [blame] | 2121 | (void) ContrastImage(preview_image,MagickFalse,exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2122 | (void) FormatLocaleString(label,MagickPathExtent,"+contrast (%.20g)", |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 2123 | (double) i+1); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2124 | break; |
| 2125 | } |
| 2126 | case GrayscalePreview: |
| 2127 | { |
| 2128 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 2129 | if (preview_image == (Image *) NULL) |
| 2130 | break; |
| 2131 | colors<<=1; |
| 2132 | quantize_info.number_colors=colors; |
| 2133 | quantize_info.colorspace=GRAYColorspace; |
cristy | 018f07f | 2011-09-04 21:15:19 +0000 | [diff] [blame] | 2134 | (void) QuantizeImage(&quantize_info,preview_image,exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2135 | (void) FormatLocaleString(label,MagickPathExtent, |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 2136 | "-colorspace gray -colors %.20g",(double) colors); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2137 | break; |
| 2138 | } |
| 2139 | case QuantizePreview: |
| 2140 | { |
| 2141 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 2142 | if (preview_image == (Image *) NULL) |
| 2143 | break; |
| 2144 | colors<<=1; |
| 2145 | quantize_info.number_colors=colors; |
cristy | 018f07f | 2011-09-04 21:15:19 +0000 | [diff] [blame] | 2146 | (void) QuantizeImage(&quantize_info,preview_image,exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2147 | (void) FormatLocaleString(label,MagickPathExtent,"colors %.20g",(double) |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 2148 | colors); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2149 | break; |
| 2150 | } |
| 2151 | case DespecklePreview: |
| 2152 | { |
| 2153 | for (x=0; x < (i-1); x++) |
| 2154 | { |
| 2155 | preview_image=DespeckleImage(thumbnail,exception); |
| 2156 | if (preview_image == (Image *) NULL) |
| 2157 | break; |
| 2158 | thumbnail=DestroyImage(thumbnail); |
| 2159 | thumbnail=preview_image; |
| 2160 | } |
| 2161 | preview_image=DespeckleImage(thumbnail,exception); |
| 2162 | if (preview_image == (Image *) NULL) |
| 2163 | break; |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2164 | (void) FormatLocaleString(label,MagickPathExtent,"despeckle (%.20g)", |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 2165 | (double) i+1); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2166 | break; |
| 2167 | } |
| 2168 | case ReduceNoisePreview: |
| 2169 | { |
cristy | 95c3834 | 2011-03-18 22:39:51 +0000 | [diff] [blame] | 2170 | preview_image=StatisticImage(thumbnail,NonpeakStatistic,(size_t) radius, |
| 2171 | (size_t) radius,exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2172 | (void) FormatLocaleString(label,MagickPathExtent,"noise %g",radius); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2173 | break; |
| 2174 | } |
| 2175 | case AddNoisePreview: |
| 2176 | { |
| 2177 | switch ((int) i) |
| 2178 | { |
| 2179 | case 0: |
| 2180 | { |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2181 | (void) CopyMagickString(factor,"uniform",MagickPathExtent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2182 | break; |
| 2183 | } |
| 2184 | case 1: |
| 2185 | { |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2186 | (void) CopyMagickString(factor,"gaussian",MagickPathExtent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2187 | break; |
| 2188 | } |
| 2189 | case 2: |
| 2190 | { |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2191 | (void) CopyMagickString(factor,"multiplicative",MagickPathExtent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2192 | break; |
| 2193 | } |
| 2194 | case 3: |
| 2195 | { |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2196 | (void) CopyMagickString(factor,"impulse",MagickPathExtent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2197 | break; |
| 2198 | } |
cristy | f2a82ee | 2014-05-26 17:49:54 +0000 | [diff] [blame] | 2199 | case 5: |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2200 | { |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2201 | (void) CopyMagickString(factor,"laplacian",MagickPathExtent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2202 | break; |
| 2203 | } |
cristy | f2a82ee | 2014-05-26 17:49:54 +0000 | [diff] [blame] | 2204 | case 6: |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2205 | { |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2206 | (void) CopyMagickString(factor,"Poisson",MagickPathExtent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2207 | break; |
| 2208 | } |
| 2209 | default: |
| 2210 | { |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2211 | (void) CopyMagickString(thumbnail->magick,"NULL",MagickPathExtent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2212 | break; |
| 2213 | } |
| 2214 | } |
cristy | d76c51e | 2011-03-26 00:21:26 +0000 | [diff] [blame] | 2215 | preview_image=StatisticImage(thumbnail,NonpeakStatistic,(size_t) i, |
| 2216 | (size_t) i,exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2217 | (void) FormatLocaleString(label,MagickPathExtent,"+noise %s",factor); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2218 | break; |
| 2219 | } |
| 2220 | case SharpenPreview: |
| 2221 | { |
cristy | aa2c16c | 2012-03-25 22:21:35 +0000 | [diff] [blame] | 2222 | preview_image=SharpenImage(thumbnail,radius,sigma,exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2223 | (void) FormatLocaleString(label,MagickPathExtent,"sharpen %gx%g",radius, |
cristy | d9fdd23 | 2013-01-19 00:14:59 +0000 | [diff] [blame] | 2224 | sigma); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2225 | break; |
| 2226 | } |
| 2227 | case BlurPreview: |
| 2228 | { |
cristy | aa2c16c | 2012-03-25 22:21:35 +0000 | [diff] [blame] | 2229 | preview_image=BlurImage(thumbnail,radius,sigma,exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2230 | (void) FormatLocaleString(label,MagickPathExtent,"blur %gx%g",radius, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2231 | sigma); |
| 2232 | break; |
| 2233 | } |
| 2234 | case ThresholdPreview: |
| 2235 | { |
| 2236 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 2237 | if (preview_image == (Image *) NULL) |
| 2238 | break; |
cristy | a19f1d7 | 2012-08-07 18:24:38 +0000 | [diff] [blame] | 2239 | (void) BilevelImage(thumbnail,(double) (percentage*((double) |
cristy | e941a75 | 2011-10-15 01:52:48 +0000 | [diff] [blame] | 2240 | QuantumRange+1.0))/100.0,exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2241 | (void) FormatLocaleString(label,MagickPathExtent,"threshold %g",(double) |
cristy | d9fdd23 | 2013-01-19 00:14:59 +0000 | [diff] [blame] | 2242 | (percentage*((double) QuantumRange+1.0))/100.0); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2243 | break; |
| 2244 | } |
| 2245 | case EdgeDetectPreview: |
| 2246 | { |
cristy | 9dc4c51 | 2013-03-24 01:38:00 +0000 | [diff] [blame] | 2247 | preview_image=EdgeImage(thumbnail,radius,exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2248 | (void) FormatLocaleString(label,MagickPathExtent,"edge %g",radius); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2249 | break; |
| 2250 | } |
| 2251 | case SpreadPreview: |
| 2252 | { |
Cristy | cc332e3 | 2015-08-09 12:15:50 -0400 | [diff] [blame] | 2253 | preview_image=SpreadImage(thumbnail,radius,exception); |
| 2254 | (void) FormatLocaleString(label,MagickPathExtent,"spread %g", |
| 2255 | radius+0.5); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2256 | break; |
| 2257 | } |
| 2258 | case SolarizePreview: |
| 2259 | { |
| 2260 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 2261 | if (preview_image == (Image *) NULL) |
| 2262 | break; |
cristy | d9fdd23 | 2013-01-19 00:14:59 +0000 | [diff] [blame] | 2263 | (void) SolarizeImage(preview_image,(double) QuantumRange*percentage/ |
| 2264 | 100.0,exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2265 | (void) FormatLocaleString(label,MagickPathExtent,"solarize %g", |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2266 | (QuantumRange*percentage)/100.0); |
| 2267 | break; |
| 2268 | } |
| 2269 | case ShadePreview: |
| 2270 | { |
| 2271 | degrees+=10.0; |
| 2272 | preview_image=ShadeImage(thumbnail,MagickTrue,degrees,degrees, |
| 2273 | exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2274 | (void) FormatLocaleString(label,MagickPathExtent,"shade %gx%g",degrees, |
cristy | d9fdd23 | 2013-01-19 00:14:59 +0000 | [diff] [blame] | 2275 | degrees); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2276 | break; |
| 2277 | } |
| 2278 | case RaisePreview: |
| 2279 | { |
| 2280 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 2281 | if (preview_image == (Image *) NULL) |
| 2282 | break; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2283 | geometry.width=(size_t) (2*i+2); |
| 2284 | geometry.height=(size_t) (2*i+2); |
cristy | 6b51621 | 2013-03-22 19:20:32 +0000 | [diff] [blame] | 2285 | geometry.x=(i-1)/2; |
| 2286 | geometry.y=(i-1)/2; |
cristy | 6170ac3 | 2011-08-28 14:15:37 +0000 | [diff] [blame] | 2287 | (void) RaiseImage(preview_image,&geometry,MagickTrue,exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2288 | (void) FormatLocaleString(label,MagickPathExtent, |
cristy | 6d8abba | 2010-06-03 01:10:47 +0000 | [diff] [blame] | 2289 | "raise %.20gx%.20g%+.20g%+.20g",(double) geometry.width,(double) |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 2290 | geometry.height,(double) geometry.x,(double) geometry.y); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2291 | break; |
| 2292 | } |
| 2293 | case SegmentPreview: |
| 2294 | { |
| 2295 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 2296 | if (preview_image == (Image *) NULL) |
| 2297 | break; |
| 2298 | threshold+=0.4f; |
cristy | c511e88 | 2012-04-16 21:11:14 +0000 | [diff] [blame] | 2299 | (void) SegmentImage(preview_image,sRGBColorspace,MagickFalse,threshold, |
cristy | 018f07f | 2011-09-04 21:15:19 +0000 | [diff] [blame] | 2300 | threshold,exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2301 | (void) FormatLocaleString(label,MagickPathExtent,"segment %gx%g", |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2302 | threshold,threshold); |
| 2303 | break; |
| 2304 | } |
| 2305 | case SwirlPreview: |
| 2306 | { |
cristy | 76f512e | 2011-09-12 01:26:56 +0000 | [diff] [blame] | 2307 | preview_image=SwirlImage(thumbnail,degrees,image->interpolate, |
| 2308 | exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2309 | (void) FormatLocaleString(label,MagickPathExtent,"swirl %g",degrees); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2310 | degrees+=45.0; |
| 2311 | break; |
| 2312 | } |
| 2313 | case ImplodePreview: |
| 2314 | { |
| 2315 | degrees+=0.1f; |
cristy | 76f512e | 2011-09-12 01:26:56 +0000 | [diff] [blame] | 2316 | preview_image=ImplodeImage(thumbnail,degrees,image->interpolate, |
| 2317 | exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2318 | (void) FormatLocaleString(label,MagickPathExtent,"implode %g",degrees); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2319 | break; |
| 2320 | } |
| 2321 | case WavePreview: |
| 2322 | { |
| 2323 | degrees+=5.0f; |
cristy | 5c4e258 | 2011-09-11 19:21:03 +0000 | [diff] [blame] | 2324 | preview_image=WaveImage(thumbnail,0.5*degrees,2.0*degrees, |
| 2325 | image->interpolate,exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2326 | (void) FormatLocaleString(label,MagickPathExtent,"wave %gx%g",0.5*degrees, |
cristy | d9fdd23 | 2013-01-19 00:14:59 +0000 | [diff] [blame] | 2327 | 2.0*degrees); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2328 | break; |
| 2329 | } |
| 2330 | case OilPaintPreview: |
| 2331 | { |
cristy | 14973ba | 2011-08-27 23:48:07 +0000 | [diff] [blame] | 2332 | preview_image=OilPaintImage(thumbnail,(double) radius,(double) sigma, |
| 2333 | exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2334 | (void) FormatLocaleString(label,MagickPathExtent,"charcoal %gx%g",radius, |
cristy | d9fdd23 | 2013-01-19 00:14:59 +0000 | [diff] [blame] | 2335 | sigma); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2336 | break; |
| 2337 | } |
| 2338 | case CharcoalDrawingPreview: |
| 2339 | { |
| 2340 | preview_image=CharcoalImage(thumbnail,(double) radius,(double) sigma, |
cristy | aa2c16c | 2012-03-25 22:21:35 +0000 | [diff] [blame] | 2341 | exception); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2342 | (void) FormatLocaleString(label,MagickPathExtent,"charcoal %gx%g",radius, |
cristy | d9fdd23 | 2013-01-19 00:14:59 +0000 | [diff] [blame] | 2343 | sigma); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2344 | break; |
| 2345 | } |
| 2346 | case JPEGPreview: |
| 2347 | { |
| 2348 | char |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2349 | filename[MagickPathExtent]; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2350 | |
| 2351 | int |
| 2352 | file; |
| 2353 | |
| 2354 | MagickBooleanType |
| 2355 | status; |
| 2356 | |
| 2357 | preview_image=CloneImage(thumbnail,0,0,MagickTrue,exception); |
| 2358 | if (preview_image == (Image *) NULL) |
| 2359 | break; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2360 | preview_info->quality=(size_t) percentage; |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2361 | (void) FormatLocaleString(factor,MagickPathExtent,"%.20g",(double) |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 2362 | preview_info->quality); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2363 | file=AcquireUniqueFileResource(filename); |
| 2364 | if (file != -1) |
| 2365 | file=close(file)-1; |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2366 | (void) FormatLocaleString(preview_image->filename,MagickPathExtent, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2367 | "jpeg:%s",filename); |
cristy | 6f9e0d3 | 2011-08-28 16:32:09 +0000 | [diff] [blame] | 2368 | status=WriteImage(preview_info,preview_image,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2369 | if (status != MagickFalse) |
| 2370 | { |
| 2371 | Image |
| 2372 | *quality_image; |
| 2373 | |
| 2374 | (void) CopyMagickString(preview_info->filename, |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2375 | preview_image->filename,MagickPathExtent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2376 | quality_image=ReadImage(preview_info,exception); |
| 2377 | if (quality_image != (Image *) NULL) |
| 2378 | { |
| 2379 | preview_image=DestroyImage(preview_image); |
| 2380 | preview_image=quality_image; |
| 2381 | } |
| 2382 | } |
| 2383 | (void) RelinquishUniqueFileResource(preview_image->filename); |
| 2384 | if ((GetBlobSize(preview_image)/1024) >= 1024) |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2385 | (void) FormatLocaleString(label,MagickPathExtent,"quality %s\n%gmb ", |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2386 | factor,(double) ((MagickOffsetType) GetBlobSize(preview_image))/ |
| 2387 | 1024.0/1024.0); |
| 2388 | else |
| 2389 | if (GetBlobSize(preview_image) >= 1024) |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2390 | (void) FormatLocaleString(label,MagickPathExtent, |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 2391 | "quality %s\n%gkb ",factor,(double) ((MagickOffsetType) |
cristy | 8cd5b31 | 2010-01-07 01:10:24 +0000 | [diff] [blame] | 2392 | GetBlobSize(preview_image))/1024.0); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2393 | else |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2394 | (void) FormatLocaleString(label,MagickPathExtent,"quality %s\n%.20gb ", |
cristy | 54ea573 | 2011-06-10 12:39:53 +0000 | [diff] [blame] | 2395 | factor,(double) ((MagickOffsetType) GetBlobSize(thumbnail))); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2396 | break; |
| 2397 | } |
| 2398 | } |
| 2399 | thumbnail=DestroyImage(thumbnail); |
| 2400 | percentage+=12.5; |
| 2401 | radius+=0.5; |
| 2402 | sigma+=0.25; |
| 2403 | if (preview_image == (Image *) NULL) |
| 2404 | break; |
| 2405 | (void) DeleteImageProperty(preview_image,"label"); |
cristy | d15e659 | 2011-10-15 00:13:06 +0000 | [diff] [blame] | 2406 | (void) SetImageProperty(preview_image,"label",label,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2407 | AppendImageToList(&images,preview_image); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2408 | proceed=SetImageProgress(image,PreviewImageTag,(MagickOffsetType) i, |
| 2409 | NumberTiles); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2410 | if (proceed == MagickFalse) |
| 2411 | break; |
| 2412 | } |
| 2413 | if (images == (Image *) NULL) |
| 2414 | { |
| 2415 | preview_info=DestroyImageInfo(preview_info); |
| 2416 | return((Image *) NULL); |
| 2417 | } |
| 2418 | /* |
| 2419 | Create the montage. |
| 2420 | */ |
| 2421 | montage_info=CloneMontageInfo(preview_info,(MontageInfo *) NULL); |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2422 | (void) CopyMagickString(montage_info->filename,image->filename,MagickPathExtent); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2423 | montage_info->shadow=MagickTrue; |
| 2424 | (void) CloneString(&montage_info->tile,"3x3"); |
| 2425 | (void) CloneString(&montage_info->geometry,DefaultPreviewGeometry); |
| 2426 | (void) CloneString(&montage_info->frame,DefaultTileFrame); |
| 2427 | montage_image=MontageImages(images,montage_info,exception); |
| 2428 | montage_info=DestroyMontageInfo(montage_info); |
| 2429 | images=DestroyImageList(images); |
| 2430 | if (montage_image == (Image *) NULL) |
| 2431 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 2432 | if (montage_image->montage != (char *) NULL) |
| 2433 | { |
| 2434 | /* |
| 2435 | Free image directory. |
| 2436 | */ |
| 2437 | montage_image->montage=(char *) RelinquishMagickMemory( |
| 2438 | montage_image->montage); |
| 2439 | if (image->directory != (char *) NULL) |
| 2440 | montage_image->directory=(char *) RelinquishMagickMemory( |
| 2441 | montage_image->directory); |
| 2442 | } |
| 2443 | preview_info=DestroyImageInfo(preview_info); |
| 2444 | return(montage_image); |
| 2445 | } |
| 2446 | |
| 2447 | /* |
| 2448 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 2449 | % % |
| 2450 | % % |
| 2451 | % % |
dirk | 6d612cf | 2014-03-13 21:17:23 +0000 | [diff] [blame] | 2452 | % R o t a t i o n a l B l u r I m a g e % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2453 | % % |
| 2454 | % % |
| 2455 | % % |
| 2456 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 2457 | % |
dirk | 6d612cf | 2014-03-13 21:17:23 +0000 | [diff] [blame] | 2458 | % RotationalBlurImage() applies a radial blur to the image. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2459 | % |
| 2460 | % Andrew Protano contributed this effect. |
| 2461 | % |
dirk | 6d612cf | 2014-03-13 21:17:23 +0000 | [diff] [blame] | 2462 | % The format of the RotationalBlurImage method is: |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2463 | % |
dirk | 6d612cf | 2014-03-13 21:17:23 +0000 | [diff] [blame] | 2464 | % Image *RotationalBlurImage(const Image *image,const double angle, |
cristy | aa2c16c | 2012-03-25 22:21:35 +0000 | [diff] [blame] | 2465 | % ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2466 | % |
| 2467 | % A description of each parameter follows: |
| 2468 | % |
| 2469 | % o image: the image. |
| 2470 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2471 | % o angle: the angle of the radial blur. |
| 2472 | % |
cristy | 6435bd9 | 2011-09-10 02:10:07 +0000 | [diff] [blame] | 2473 | % o blur: the blur. |
| 2474 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2475 | % o exception: return any errors or warnings in this structure. |
| 2476 | % |
| 2477 | */ |
dirk | 6d612cf | 2014-03-13 21:17:23 +0000 | [diff] [blame] | 2478 | MagickExport Image *RotationalBlurImage(const Image *image,const double angle, |
cristy | aa2c16c | 2012-03-25 22:21:35 +0000 | [diff] [blame] | 2479 | ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2480 | { |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 2481 | CacheView |
| 2482 | *blur_view, |
cristy | 8b49f38 | 2012-01-17 03:11:03 +0000 | [diff] [blame] | 2483 | *image_view, |
| 2484 | *radial_view; |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 2485 | |
cristy | adc349b | 2014-12-06 21:40:39 +0000 | [diff] [blame] | 2486 | double |
| 2487 | blur_radius, |
| 2488 | *cos_theta, |
| 2489 | offset, |
| 2490 | *sin_theta, |
| 2491 | theta; |
| 2492 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2493 | Image |
| 2494 | *blur_image; |
| 2495 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2496 | MagickBooleanType |
| 2497 | status; |
| 2498 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2499 | MagickOffsetType |
| 2500 | progress; |
| 2501 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2502 | PointInfo |
| 2503 | blur_center; |
| 2504 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2505 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2506 | i; |
| 2507 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2508 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2509 | n; |
| 2510 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2511 | ssize_t |
| 2512 | y; |
| 2513 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2514 | /* |
| 2515 | Allocate blur image. |
| 2516 | */ |
| 2517 | assert(image != (Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 2518 | assert(image->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2519 | if (image->debug != MagickFalse) |
| 2520 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 2521 | assert(exception != (ExceptionInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 2522 | assert(exception->signature == MagickCoreSignature); |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2523 | blur_image=CloneImage(image,image->columns,image->rows,MagickTrue,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2524 | if (blur_image == (Image *) NULL) |
| 2525 | return((Image *) NULL); |
cristy | 574cc26 | 2011-08-05 01:23:58 +0000 | [diff] [blame] | 2526 | if (SetImageStorageClass(blur_image,DirectClass,exception) == MagickFalse) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2527 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2528 | blur_image=DestroyImage(blur_image); |
| 2529 | return((Image *) NULL); |
| 2530 | } |
cristy | 6b51621 | 2013-03-22 19:20:32 +0000 | [diff] [blame] | 2531 | blur_center.x=(double) (image->columns-1)/2.0; |
| 2532 | blur_center.y=(double) (image->rows-1)/2.0; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2533 | blur_radius=hypot(blur_center.x,blur_center.y); |
cristy | 117ff17 | 2010-08-15 21:35:32 +0000 | [diff] [blame] | 2534 | n=(size_t) fabs(4.0*DegreesToRadians(angle)*sqrt((double) blur_radius)+2UL); |
cristy | a19f1d7 | 2012-08-07 18:24:38 +0000 | [diff] [blame] | 2535 | theta=DegreesToRadians(angle)/(double) (n-1); |
| 2536 | cos_theta=(double *) AcquireQuantumMemory((size_t) n, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2537 | sizeof(*cos_theta)); |
cristy | a19f1d7 | 2012-08-07 18:24:38 +0000 | [diff] [blame] | 2538 | sin_theta=(double *) AcquireQuantumMemory((size_t) n, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2539 | sizeof(*sin_theta)); |
cristy | a19f1d7 | 2012-08-07 18:24:38 +0000 | [diff] [blame] | 2540 | if ((cos_theta == (double *) NULL) || |
| 2541 | (sin_theta == (double *) NULL)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2542 | { |
| 2543 | blur_image=DestroyImage(blur_image); |
| 2544 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 2545 | } |
cristy | a19f1d7 | 2012-08-07 18:24:38 +0000 | [diff] [blame] | 2546 | offset=theta*(double) (n-1)/2.0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2547 | for (i=0; i < (ssize_t) n; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2548 | { |
| 2549 | cos_theta[i]=cos((double) (theta*i-offset)); |
| 2550 | sin_theta[i]=sin((double) (theta*i-offset)); |
| 2551 | } |
| 2552 | /* |
| 2553 | Radial blur image. |
| 2554 | */ |
| 2555 | status=MagickTrue; |
| 2556 | progress=0; |
cristy | 46ff267 | 2012-12-14 15:32:26 +0000 | [diff] [blame] | 2557 | image_view=AcquireVirtualCacheView(image,exception); |
| 2558 | radial_view=AcquireVirtualCacheView(image,exception); |
| 2559 | blur_view=AcquireAuthenticCacheView(blur_image,exception); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 2560 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | ac245f8 | 2012-05-05 17:13:57 +0000 | [diff] [blame] | 2561 | #pragma omp parallel for schedule(static,4) shared(progress,status) \ |
cristy | 5e6b259 | 2012-12-19 14:08:11 +0000 | [diff] [blame] | 2562 | magick_threads(image,blur_image,image->rows,1) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2563 | #endif |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2564 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2565 | { |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2566 | register const Quantum |
| 2567 | *restrict p; |
| 2568 | |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 2569 | register Quantum |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 2570 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2571 | |
cristy | 117ff17 | 2010-08-15 21:35:32 +0000 | [diff] [blame] | 2572 | register ssize_t |
| 2573 | x; |
| 2574 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2575 | if (status == MagickFalse) |
| 2576 | continue; |
cristy | 8b49f38 | 2012-01-17 03:11:03 +0000 | [diff] [blame] | 2577 | p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception); |
| 2578 | q=QueueCacheViewAuthenticPixels(blur_view,0,y,blur_image->columns,1, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2579 | exception); |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2580 | if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2581 | { |
| 2582 | status=MagickFalse; |
| 2583 | continue; |
| 2584 | } |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2585 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2586 | { |
cristy | a19f1d7 | 2012-08-07 18:24:38 +0000 | [diff] [blame] | 2587 | double |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2588 | radius; |
| 2589 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2590 | PointInfo |
| 2591 | center; |
| 2592 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2593 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2594 | i; |
| 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 | step; |
| 2598 | |
| 2599 | center.x=(double) x-blur_center.x; |
| 2600 | center.y=(double) y-blur_center.y; |
| 2601 | radius=hypot((double) center.x,center.y); |
| 2602 | if (radius == 0) |
| 2603 | step=1; |
| 2604 | else |
| 2605 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2606 | step=(size_t) (blur_radius/radius); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2607 | if (step == 0) |
| 2608 | step=1; |
| 2609 | else |
| 2610 | if (step >= n) |
| 2611 | step=n-1; |
| 2612 | } |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2613 | for (i=0; i < (ssize_t) GetPixelChannels(image); i++) |
| 2614 | { |
cristy | a19f1d7 | 2012-08-07 18:24:38 +0000 | [diff] [blame] | 2615 | double |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2616 | gamma, |
| 2617 | pixel; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2618 | |
cristy | 633067b | 2013-02-21 01:15:12 +0000 | [diff] [blame] | 2619 | PixelChannel |
| 2620 | channel; |
| 2621 | |
| 2622 | PixelTrait |
| 2623 | blur_traits, |
| 2624 | traits; |
| 2625 | |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2626 | register const Quantum |
| 2627 | *restrict r; |
| 2628 | |
| 2629 | register ssize_t |
| 2630 | j; |
| 2631 | |
cristy | 633067b | 2013-02-21 01:15:12 +0000 | [diff] [blame] | 2632 | channel=GetPixelChannelChannel(image,i); |
| 2633 | traits=GetPixelChannelTraits(image,channel); |
| 2634 | blur_traits=GetPixelChannelTraits(blur_image,channel); |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2635 | if ((traits == UndefinedPixelTrait) || |
| 2636 | (blur_traits == UndefinedPixelTrait)) |
| 2637 | continue; |
cristy | 1eced09 | 2012-08-10 23:10:56 +0000 | [diff] [blame] | 2638 | if (((blur_traits & CopyPixelTrait) != 0) || |
cristy | 883fde1 | 2013-04-08 00:50:13 +0000 | [diff] [blame] | 2639 | (GetPixelReadMask(image,p) == 0)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2640 | { |
cristy | 0beccfa | 2011-09-25 20:47:53 +0000 | [diff] [blame] | 2641 | SetPixelChannel(blur_image,channel,p[i],q); |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2642 | continue; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2643 | } |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2644 | gamma=0.0; |
cristy | aa2c16c | 2012-03-25 22:21:35 +0000 | [diff] [blame] | 2645 | pixel=0.0; |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2646 | if ((blur_traits & BlendPixelTrait) == 0) |
| 2647 | { |
| 2648 | for (j=0; j < (ssize_t) n; j+=(ssize_t) step) |
| 2649 | { |
cristy | 8b49f38 | 2012-01-17 03:11:03 +0000 | [diff] [blame] | 2650 | r=GetCacheViewVirtualPixels(radial_view, (ssize_t) (blur_center.x+ |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2651 | center.x*cos_theta[j]-center.y*sin_theta[j]+0.5),(ssize_t) |
| 2652 | (blur_center.y+center.x*sin_theta[j]+center.y*cos_theta[j]+0.5), |
| 2653 | 1,1,exception); |
| 2654 | if (r == (const Quantum *) NULL) |
| 2655 | { |
| 2656 | status=MagickFalse; |
| 2657 | continue; |
| 2658 | } |
| 2659 | pixel+=r[i]; |
| 2660 | gamma++; |
| 2661 | } |
cristy | 3e3ec3a | 2012-11-03 23:11:06 +0000 | [diff] [blame] | 2662 | gamma=PerceptibleReciprocal(gamma); |
cristy | 0beccfa | 2011-09-25 20:47:53 +0000 | [diff] [blame] | 2663 | SetPixelChannel(blur_image,channel,ClampToQuantum(gamma*pixel),q); |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2664 | continue; |
| 2665 | } |
| 2666 | for (j=0; j < (ssize_t) n; j+=(ssize_t) step) |
| 2667 | { |
cristy | 8b49f38 | 2012-01-17 03:11:03 +0000 | [diff] [blame] | 2668 | r=GetCacheViewVirtualPixels(radial_view, (ssize_t) (blur_center.x+ |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2669 | center.x*cos_theta[j]-center.y*sin_theta[j]+0.5),(ssize_t) |
| 2670 | (blur_center.y+center.x*sin_theta[j]+center.y*cos_theta[j]+0.5), |
| 2671 | 1,1,exception); |
| 2672 | if (r == (const Quantum *) NULL) |
| 2673 | { |
| 2674 | status=MagickFalse; |
| 2675 | continue; |
| 2676 | } |
| 2677 | pixel+=GetPixelAlpha(image,r)*r[i]; |
| 2678 | gamma+=GetPixelAlpha(image,r); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2679 | } |
cristy | 3e3ec3a | 2012-11-03 23:11:06 +0000 | [diff] [blame] | 2680 | gamma=PerceptibleReciprocal(gamma); |
cristy | 0beccfa | 2011-09-25 20:47:53 +0000 | [diff] [blame] | 2681 | SetPixelChannel(blur_image,channel,ClampToQuantum(gamma*pixel),q); |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2682 | } |
| 2683 | p+=GetPixelChannels(image); |
cristy | ed23157 | 2011-07-14 02:18:59 +0000 | [diff] [blame] | 2684 | q+=GetPixelChannels(blur_image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2685 | } |
| 2686 | if (SyncCacheViewAuthenticPixels(blur_view,exception) == MagickFalse) |
| 2687 | status=MagickFalse; |
| 2688 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 2689 | { |
| 2690 | MagickBooleanType |
| 2691 | proceed; |
| 2692 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 2693 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
dirk | 6d612cf | 2014-03-13 21:17:23 +0000 | [diff] [blame] | 2694 | #pragma omp critical (MagickCore_RotationalBlurImage) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2695 | #endif |
| 2696 | proceed=SetImageProgress(image,BlurImageTag,progress++,image->rows); |
| 2697 | if (proceed == MagickFalse) |
| 2698 | status=MagickFalse; |
| 2699 | } |
| 2700 | } |
| 2701 | blur_view=DestroyCacheView(blur_view); |
cristy | 8b49f38 | 2012-01-17 03:11:03 +0000 | [diff] [blame] | 2702 | radial_view=DestroyCacheView(radial_view); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2703 | image_view=DestroyCacheView(image_view); |
cristy | a19f1d7 | 2012-08-07 18:24:38 +0000 | [diff] [blame] | 2704 | cos_theta=(double *) RelinquishMagickMemory(cos_theta); |
| 2705 | sin_theta=(double *) RelinquishMagickMemory(sin_theta); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2706 | if (status == MagickFalse) |
| 2707 | blur_image=DestroyImage(blur_image); |
| 2708 | return(blur_image); |
| 2709 | } |
| 2710 | |
| 2711 | /* |
| 2712 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 2713 | % % |
| 2714 | % % |
| 2715 | % % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2716 | % S e l e c t i v e B l u r I m a g e % |
| 2717 | % % |
| 2718 | % % |
| 2719 | % % |
| 2720 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 2721 | % |
| 2722 | % SelectiveBlurImage() selectively blur pixels within a contrast threshold. |
| 2723 | % It is similar to the unsharpen mask that sharpens everything with contrast |
| 2724 | % above a certain threshold. |
| 2725 | % |
| 2726 | % The format of the SelectiveBlurImage method is: |
| 2727 | % |
| 2728 | % Image *SelectiveBlurImage(const Image *image,const double radius, |
cristy | aa2c16c | 2012-03-25 22:21:35 +0000 | [diff] [blame] | 2729 | % const double sigma,const double threshold,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2730 | % |
| 2731 | % A description of each parameter follows: |
| 2732 | % |
| 2733 | % o image: the image. |
| 2734 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2735 | % o radius: the radius of the Gaussian, in pixels, not counting the center |
| 2736 | % pixel. |
| 2737 | % |
| 2738 | % o sigma: the standard deviation of the Gaussian, in pixels. |
| 2739 | % |
| 2740 | % o threshold: only pixels within this contrast threshold are included |
| 2741 | % in the blur operation. |
| 2742 | % |
| 2743 | % o exception: return any errors or warnings in this structure. |
| 2744 | % |
| 2745 | */ |
cristy | 4282c70 | 2011-11-21 00:01:06 +0000 | [diff] [blame] | 2746 | MagickExport Image *SelectiveBlurImage(const Image *image,const double radius, |
cristy | aa2c16c | 2012-03-25 22:21:35 +0000 | [diff] [blame] | 2747 | const double sigma,const double threshold,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2748 | { |
| 2749 | #define SelectiveBlurImageTag "SelectiveBlur/Image" |
| 2750 | |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 2751 | CacheView |
| 2752 | *blur_view, |
cristy | 9c7cf37 | 2012-08-08 22:58:27 +0000 | [diff] [blame] | 2753 | *image_view, |
| 2754 | *luminance_view; |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 2755 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2756 | Image |
cristy | 9c7cf37 | 2012-08-08 22:58:27 +0000 | [diff] [blame] | 2757 | *blur_image, |
| 2758 | *luminance_image; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2759 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2760 | MagickBooleanType |
| 2761 | status; |
| 2762 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2763 | MagickOffsetType |
| 2764 | progress; |
| 2765 | |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 2766 | MagickRealType |
| 2767 | *kernel; |
| 2768 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2769 | register ssize_t |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 2770 | i; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2771 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2772 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2773 | width; |
| 2774 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2775 | ssize_t |
cristy | c8523c1 | 2011-09-13 00:02:53 +0000 | [diff] [blame] | 2776 | center, |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2777 | j, |
| 2778 | u, |
| 2779 | v, |
| 2780 | y; |
| 2781 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2782 | /* |
| 2783 | Initialize blur image attributes. |
| 2784 | */ |
| 2785 | assert(image != (Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 2786 | assert(image->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2787 | if (image->debug != MagickFalse) |
| 2788 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 2789 | assert(exception != (ExceptionInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 2790 | assert(exception->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2791 | width=GetOptimalKernelWidth1D(radius,sigma); |
cristy | e42639a | 2012-08-23 01:53:24 +0000 | [diff] [blame] | 2792 | kernel=(MagickRealType *) MagickAssumeAligned(AcquireAlignedMemory((size_t) |
| 2793 | width,width*sizeof(*kernel))); |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 2794 | if (kernel == (MagickRealType *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2795 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
cristy | 6b51621 | 2013-03-22 19:20:32 +0000 | [diff] [blame] | 2796 | j=(ssize_t) (width-1)/2; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2797 | i=0; |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 2798 | for (v=(-j); v <= j; v++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2799 | { |
cristy | 47e0050 | 2009-12-17 19:19:57 +0000 | [diff] [blame] | 2800 | for (u=(-j); u <= j; u++) |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 2801 | kernel[i++]=(MagickRealType) (exp(-((double) u*u+v*v)/(2.0*MagickSigma* |
cristy | 4205a3c | 2010-09-12 20:19:59 +0000 | [diff] [blame] | 2802 | MagickSigma))/(2.0*MagickPI*MagickSigma*MagickSigma)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2803 | } |
| 2804 | if (image->debug != MagickFalse) |
| 2805 | { |
| 2806 | char |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2807 | format[MagickPathExtent], |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2808 | *message; |
| 2809 | |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 2810 | register const MagickRealType |
cristy | 117ff17 | 2010-08-15 21:35:32 +0000 | [diff] [blame] | 2811 | *k; |
| 2812 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2813 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2814 | u, |
| 2815 | v; |
| 2816 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2817 | (void) LogMagickEvent(TransformEvent,GetMagickModule(), |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 2818 | " SelectiveBlurImage with %.20gx%.20g kernel:",(double) width,(double) |
| 2819 | width); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2820 | message=AcquireString(""); |
| 2821 | k=kernel; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2822 | for (v=0; v < (ssize_t) width; v++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2823 | { |
| 2824 | *message='\0'; |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2825 | (void) FormatLocaleString(format,MagickPathExtent,"%.20g: ",(double) v); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2826 | (void) ConcatenateString(&message,format); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2827 | for (u=0; u < (ssize_t) width; u++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2828 | { |
cristy | 151b66d | 2015-04-15 10:50:31 +0000 | [diff] [blame] | 2829 | (void) FormatLocaleString(format,MagickPathExtent,"%+f ",(double) *k++); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2830 | (void) ConcatenateString(&message,format); |
| 2831 | } |
| 2832 | (void) LogMagickEvent(TransformEvent,GetMagickModule(),"%s",message); |
| 2833 | } |
| 2834 | message=DestroyString(message); |
| 2835 | } |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2836 | blur_image=CloneImage(image,image->columns,image->rows,MagickTrue,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2837 | if (blur_image == (Image *) NULL) |
| 2838 | return((Image *) NULL); |
cristy | 574cc26 | 2011-08-05 01:23:58 +0000 | [diff] [blame] | 2839 | if (SetImageStorageClass(blur_image,DirectClass,exception) == MagickFalse) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2840 | { |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2841 | blur_image=DestroyImage(blur_image); |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 2842 | kernel=(MagickRealType *) RelinquishAlignedMemory(kernel); |
cristy | 9c7cf37 | 2012-08-08 22:58:27 +0000 | [diff] [blame] | 2843 | return((Image *) NULL); |
| 2844 | } |
| 2845 | luminance_image=CloneImage(image,0,0,MagickTrue,exception); |
| 2846 | if (luminance_image == (Image *) NULL) |
| 2847 | { |
| 2848 | blur_image=DestroyImage(blur_image); |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 2849 | kernel=(MagickRealType *) RelinquishAlignedMemory(kernel); |
cristy | 9c7cf37 | 2012-08-08 22:58:27 +0000 | [diff] [blame] | 2850 | return((Image *) NULL); |
| 2851 | } |
| 2852 | status=TransformImageColorspace(luminance_image,GRAYColorspace,exception); |
| 2853 | if (status == MagickFalse) |
| 2854 | { |
| 2855 | luminance_image=DestroyImage(luminance_image); |
| 2856 | blur_image=DestroyImage(blur_image); |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 2857 | kernel=(MagickRealType *) RelinquishAlignedMemory(kernel); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2858 | return((Image *) NULL); |
| 2859 | } |
| 2860 | /* |
| 2861 | Threshold blur image. |
| 2862 | */ |
| 2863 | status=MagickTrue; |
| 2864 | progress=0; |
cristy | 6b51621 | 2013-03-22 19:20:32 +0000 | [diff] [blame] | 2865 | center=(ssize_t) (GetPixelChannels(image)*(image->columns+width)* |
| 2866 | ((width-1)/2L)+GetPixelChannels(image)*((width-1)/2L)); |
cristy | 46ff267 | 2012-12-14 15:32:26 +0000 | [diff] [blame] | 2867 | image_view=AcquireVirtualCacheView(image,exception); |
| 2868 | luminance_view=AcquireVirtualCacheView(luminance_image,exception); |
| 2869 | blur_view=AcquireAuthenticCacheView(blur_image,exception); |
cristy | 5a691dc | 2012-08-23 22:56:49 +0000 | [diff] [blame] | 2870 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | ac245f8 | 2012-05-05 17:13:57 +0000 | [diff] [blame] | 2871 | #pragma omp parallel for schedule(static,4) shared(progress,status) \ |
cristy | 5e6b259 | 2012-12-19 14:08:11 +0000 | [diff] [blame] | 2872 | magick_threads(image,blur_image,image->rows,1) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2873 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2874 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2875 | { |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 2876 | double |
| 2877 | contrast; |
| 2878 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2879 | MagickBooleanType |
| 2880 | sync; |
| 2881 | |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 2882 | register const Quantum |
cristy | 9c7cf37 | 2012-08-08 22:58:27 +0000 | [diff] [blame] | 2883 | *restrict l, |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 2884 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2885 | |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 2886 | register Quantum |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 2887 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2888 | |
cristy | 117ff17 | 2010-08-15 21:35:32 +0000 | [diff] [blame] | 2889 | register ssize_t |
| 2890 | x; |
| 2891 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2892 | if (status == MagickFalse) |
| 2893 | continue; |
cristy | 6b51621 | 2013-03-22 19:20:32 +0000 | [diff] [blame] | 2894 | p=GetCacheViewVirtualPixels(image_view,-((ssize_t) (width-1)/2L),y-(ssize_t) |
| 2895 | ((width-1)/2L),image->columns+width,width,exception); |
| 2896 | l=GetCacheViewVirtualPixels(luminance_view,-((ssize_t) (width-1)/2L),y- |
| 2897 | (ssize_t) ((width-1)/2L),luminance_image->columns+width,width,exception); |
cristy | 8b49f38 | 2012-01-17 03:11:03 +0000 | [diff] [blame] | 2898 | q=QueueCacheViewAuthenticPixels(blur_view,0,y,blur_image->columns,1, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2899 | exception); |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 2900 | if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2901 | { |
| 2902 | status=MagickFalse; |
| 2903 | continue; |
| 2904 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2905 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2906 | { |
cristy | 9c7cf37 | 2012-08-08 22:58:27 +0000 | [diff] [blame] | 2907 | double |
| 2908 | intensity; |
| 2909 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2910 | register ssize_t |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2911 | i; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2912 | |
cristy | f13c594 | 2012-08-08 23:50:11 +0000 | [diff] [blame] | 2913 | intensity=GetPixelIntensity(image,p+center); |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2914 | for (i=0; i < (ssize_t) GetPixelChannels(image); i++) |
| 2915 | { |
cristy | a19f1d7 | 2012-08-07 18:24:38 +0000 | [diff] [blame] | 2916 | double |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2917 | alpha, |
| 2918 | gamma, |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2919 | pixel; |
cristy | 117ff17 | 2010-08-15 21:35:32 +0000 | [diff] [blame] | 2920 | |
cristy | 633067b | 2013-02-21 01:15:12 +0000 | [diff] [blame] | 2921 | PixelChannel |
| 2922 | channel; |
| 2923 | |
| 2924 | PixelTrait |
| 2925 | blur_traits, |
| 2926 | traits; |
| 2927 | |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 2928 | register const MagickRealType |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2929 | *restrict k; |
| 2930 | |
| 2931 | register const Quantum |
cristy | 9c7cf37 | 2012-08-08 22:58:27 +0000 | [diff] [blame] | 2932 | *restrict luminance_pixels, |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2933 | *restrict pixels; |
| 2934 | |
| 2935 | register ssize_t |
| 2936 | u; |
| 2937 | |
| 2938 | ssize_t |
| 2939 | v; |
| 2940 | |
cristy | 633067b | 2013-02-21 01:15:12 +0000 | [diff] [blame] | 2941 | channel=GetPixelChannelChannel(image,i); |
| 2942 | traits=GetPixelChannelTraits(image,channel); |
| 2943 | blur_traits=GetPixelChannelTraits(blur_image,channel); |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2944 | if ((traits == UndefinedPixelTrait) || |
| 2945 | (blur_traits == UndefinedPixelTrait)) |
| 2946 | continue; |
cristy | 1eced09 | 2012-08-10 23:10:56 +0000 | [diff] [blame] | 2947 | if (((blur_traits & CopyPixelTrait) != 0) || |
cristy | 883fde1 | 2013-04-08 00:50:13 +0000 | [diff] [blame] | 2948 | (GetPixelReadMask(image,p+center) == 0)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2949 | { |
cristy | 0beccfa | 2011-09-25 20:47:53 +0000 | [diff] [blame] | 2950 | SetPixelChannel(blur_image,channel,p[center+i],q); |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2951 | continue; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2952 | } |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2953 | k=kernel; |
cristy | aa2c16c | 2012-03-25 22:21:35 +0000 | [diff] [blame] | 2954 | pixel=0.0; |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2955 | pixels=p; |
cristy | 9c7cf37 | 2012-08-08 22:58:27 +0000 | [diff] [blame] | 2956 | luminance_pixels=l; |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2957 | gamma=0.0; |
| 2958 | if ((blur_traits & BlendPixelTrait) == 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2959 | { |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2960 | for (v=0; v < (ssize_t) width; v++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2961 | { |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2962 | for (u=0; u < (ssize_t) width; u++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2963 | { |
cristy | f13c594 | 2012-08-08 23:50:11 +0000 | [diff] [blame] | 2964 | contrast=GetPixelIntensity(luminance_image,luminance_pixels)- |
| 2965 | intensity; |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2966 | if (fabs(contrast) < threshold) |
| 2967 | { |
| 2968 | pixel+=(*k)*pixels[i]; |
| 2969 | gamma+=(*k); |
| 2970 | } |
| 2971 | k++; |
| 2972 | pixels+=GetPixelChannels(image); |
cristy | 9c7cf37 | 2012-08-08 22:58:27 +0000 | [diff] [blame] | 2973 | luminance_pixels+=GetPixelChannels(luminance_image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2974 | } |
cristy | adc349b | 2014-12-06 21:40:39 +0000 | [diff] [blame] | 2975 | pixels+=GetPixelChannels(image)*image->columns; |
| 2976 | luminance_pixels+=GetPixelChannels(luminance_image)* |
| 2977 | luminance_image->columns; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2978 | } |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2979 | if (fabs((double) gamma) < MagickEpsilon) |
| 2980 | { |
cristy | 0beccfa | 2011-09-25 20:47:53 +0000 | [diff] [blame] | 2981 | SetPixelChannel(blur_image,channel,p[center+i],q); |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2982 | continue; |
| 2983 | } |
cristy | 3e3ec3a | 2012-11-03 23:11:06 +0000 | [diff] [blame] | 2984 | gamma=PerceptibleReciprocal(gamma); |
cristy | 0beccfa | 2011-09-25 20:47:53 +0000 | [diff] [blame] | 2985 | SetPixelChannel(blur_image,channel,ClampToQuantum(gamma*pixel),q); |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2986 | continue; |
| 2987 | } |
| 2988 | for (v=0; v < (ssize_t) width; v++) |
| 2989 | { |
| 2990 | for (u=0; u < (ssize_t) width; u++) |
| 2991 | { |
| 2992 | contrast=GetPixelIntensity(image,pixels)-intensity; |
| 2993 | if (fabs(contrast) < threshold) |
| 2994 | { |
cristy | 60dc90c | 2013-02-09 18:33:21 +0000 | [diff] [blame] | 2995 | alpha=(double) (QuantumScale*GetPixelAlpha(image,pixels)); |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 2996 | pixel+=(*k)*alpha*pixels[i]; |
| 2997 | gamma+=(*k)*alpha; |
| 2998 | } |
| 2999 | k++; |
| 3000 | pixels+=GetPixelChannels(image); |
cristy | 9c7cf37 | 2012-08-08 22:58:27 +0000 | [diff] [blame] | 3001 | luminance_pixels+=GetPixelChannels(luminance_image); |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 3002 | } |
cristy | adc349b | 2014-12-06 21:40:39 +0000 | [diff] [blame] | 3003 | pixels+=GetPixelChannels(image)*image->columns; |
| 3004 | luminance_pixels+=GetPixelChannels(luminance_image)* |
| 3005 | luminance_image->columns; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3006 | } |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 3007 | if (fabs((double) gamma) < MagickEpsilon) |
| 3008 | { |
cristy | 0beccfa | 2011-09-25 20:47:53 +0000 | [diff] [blame] | 3009 | SetPixelChannel(blur_image,channel,p[center+i],q); |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 3010 | continue; |
| 3011 | } |
cristy | 3e3ec3a | 2012-11-03 23:11:06 +0000 | [diff] [blame] | 3012 | gamma=PerceptibleReciprocal(gamma); |
cristy | 0beccfa | 2011-09-25 20:47:53 +0000 | [diff] [blame] | 3013 | SetPixelChannel(blur_image,channel,ClampToQuantum(gamma*pixel),q); |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 3014 | } |
cristy | ed23157 | 2011-07-14 02:18:59 +0000 | [diff] [blame] | 3015 | p+=GetPixelChannels(image); |
cristy | 9c7cf37 | 2012-08-08 22:58:27 +0000 | [diff] [blame] | 3016 | l+=GetPixelChannels(luminance_image); |
cristy | ed23157 | 2011-07-14 02:18:59 +0000 | [diff] [blame] | 3017 | q+=GetPixelChannels(blur_image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3018 | } |
| 3019 | sync=SyncCacheViewAuthenticPixels(blur_view,exception); |
| 3020 | if (sync == MagickFalse) |
| 3021 | status=MagickFalse; |
| 3022 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 3023 | { |
| 3024 | MagickBooleanType |
| 3025 | proceed; |
| 3026 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 3027 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | f856154 | 2012-01-24 00:26:46 +0000 | [diff] [blame] | 3028 | #pragma omp critical (MagickCore_SelectiveBlurImage) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3029 | #endif |
| 3030 | proceed=SetImageProgress(image,SelectiveBlurImageTag,progress++, |
| 3031 | image->rows); |
| 3032 | if (proceed == MagickFalse) |
| 3033 | status=MagickFalse; |
| 3034 | } |
| 3035 | } |
| 3036 | blur_image->type=image->type; |
| 3037 | blur_view=DestroyCacheView(blur_view); |
| 3038 | image_view=DestroyCacheView(image_view); |
cristy | 9c7cf37 | 2012-08-08 22:58:27 +0000 | [diff] [blame] | 3039 | luminance_image=DestroyImage(luminance_image); |
cristy | 0a887dc | 2012-08-15 22:58:36 +0000 | [diff] [blame] | 3040 | kernel=(MagickRealType *) RelinquishAlignedMemory(kernel); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3041 | if (status == MagickFalse) |
| 3042 | blur_image=DestroyImage(blur_image); |
| 3043 | return(blur_image); |
| 3044 | } |
| 3045 | |
| 3046 | /* |
| 3047 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3048 | % % |
| 3049 | % % |
| 3050 | % % |
| 3051 | % S h a d e I m a g e % |
| 3052 | % % |
| 3053 | % % |
| 3054 | % % |
| 3055 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3056 | % |
| 3057 | % ShadeImage() shines a distant light on an image to create a |
| 3058 | % three-dimensional effect. You control the positioning of the light with |
| 3059 | % azimuth and elevation; azimuth is measured in degrees off the x axis |
| 3060 | % and elevation is measured in pixels above the Z axis. |
| 3061 | % |
| 3062 | % The format of the ShadeImage method is: |
| 3063 | % |
| 3064 | % Image *ShadeImage(const Image *image,const MagickBooleanType gray, |
| 3065 | % const double azimuth,const double elevation,ExceptionInfo *exception) |
| 3066 | % |
| 3067 | % A description of each parameter follows: |
| 3068 | % |
| 3069 | % o image: the image. |
| 3070 | % |
| 3071 | % o gray: A value other than zero shades the intensity of each pixel. |
| 3072 | % |
| 3073 | % o azimuth, elevation: Define the light source direction. |
| 3074 | % |
| 3075 | % o exception: return any errors or warnings in this structure. |
| 3076 | % |
| 3077 | */ |
| 3078 | MagickExport Image *ShadeImage(const Image *image,const MagickBooleanType gray, |
| 3079 | const double azimuth,const double elevation,ExceptionInfo *exception) |
| 3080 | { |
| 3081 | #define ShadeImageTag "Shade/Image" |
| 3082 | |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 3083 | CacheView |
| 3084 | *image_view, |
| 3085 | *shade_view; |
| 3086 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3087 | Image |
cristy | 7d9d8ca | 2012-12-20 17:11:08 +0000 | [diff] [blame] | 3088 | *linear_image, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3089 | *shade_image; |
| 3090 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3091 | MagickBooleanType |
| 3092 | status; |
| 3093 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3094 | MagickOffsetType |
| 3095 | progress; |
| 3096 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3097 | PrimaryInfo |
| 3098 | light; |
| 3099 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3100 | ssize_t |
| 3101 | y; |
| 3102 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3103 | /* |
| 3104 | Initialize shaded image attributes. |
| 3105 | */ |
| 3106 | assert(image != (const Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 3107 | assert(image->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3108 | if (image->debug != MagickFalse) |
| 3109 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 3110 | assert(exception != (ExceptionInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 3111 | assert(exception->signature == MagickCoreSignature); |
cristy | 7d9d8ca | 2012-12-20 17:11:08 +0000 | [diff] [blame] | 3112 | linear_image=CloneImage(image,0,0,MagickTrue,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3113 | shade_image=CloneImage(image,image->columns,image->rows,MagickTrue,exception); |
cristy | 7d9d8ca | 2012-12-20 17:11:08 +0000 | [diff] [blame] | 3114 | if ((linear_image == (Image *) NULL) || (shade_image == (Image *) NULL)) |
| 3115 | { |
| 3116 | if (linear_image != (Image *) NULL) |
| 3117 | linear_image=DestroyImage(linear_image); |
| 3118 | if (shade_image != (Image *) NULL) |
| 3119 | shade_image=DestroyImage(shade_image); |
| 3120 | return((Image *) NULL); |
| 3121 | } |
cristy | 574cc26 | 2011-08-05 01:23:58 +0000 | [diff] [blame] | 3122 | if (SetImageStorageClass(shade_image,DirectClass,exception) == MagickFalse) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3123 | { |
cristy | 7d9d8ca | 2012-12-20 17:11:08 +0000 | [diff] [blame] | 3124 | linear_image=DestroyImage(linear_image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3125 | shade_image=DestroyImage(shade_image); |
| 3126 | return((Image *) NULL); |
| 3127 | } |
| 3128 | /* |
| 3129 | Compute the light vector. |
| 3130 | */ |
| 3131 | light.x=(double) QuantumRange*cos(DegreesToRadians(azimuth))* |
| 3132 | cos(DegreesToRadians(elevation)); |
| 3133 | light.y=(double) QuantumRange*sin(DegreesToRadians(azimuth))* |
| 3134 | cos(DegreesToRadians(elevation)); |
| 3135 | light.z=(double) QuantumRange*sin(DegreesToRadians(elevation)); |
| 3136 | /* |
| 3137 | Shade image. |
| 3138 | */ |
| 3139 | status=MagickTrue; |
| 3140 | progress=0; |
cristy | 7d9d8ca | 2012-12-20 17:11:08 +0000 | [diff] [blame] | 3141 | image_view=AcquireVirtualCacheView(linear_image,exception); |
cristy | 46ff267 | 2012-12-14 15:32:26 +0000 | [diff] [blame] | 3142 | shade_view=AcquireAuthenticCacheView(shade_image,exception); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 3143 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | ac245f8 | 2012-05-05 17:13:57 +0000 | [diff] [blame] | 3144 | #pragma omp parallel for schedule(static,4) shared(progress,status) \ |
cristy | 7d9d8ca | 2012-12-20 17:11:08 +0000 | [diff] [blame] | 3145 | magick_threads(linear_image,shade_image,linear_image->rows,1) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3146 | #endif |
cristy | 7d9d8ca | 2012-12-20 17:11:08 +0000 | [diff] [blame] | 3147 | for (y=0; y < (ssize_t) linear_image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3148 | { |
cristy | a19f1d7 | 2012-08-07 18:24:38 +0000 | [diff] [blame] | 3149 | double |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3150 | distance, |
| 3151 | normal_distance, |
| 3152 | shade; |
| 3153 | |
| 3154 | PrimaryInfo |
| 3155 | normal; |
| 3156 | |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 3157 | register const Quantum |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 3158 | *restrict center, |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 3159 | *restrict p, |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 3160 | *restrict post, |
| 3161 | *restrict pre; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3162 | |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 3163 | register Quantum |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 3164 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3165 | |
cristy | 117ff17 | 2010-08-15 21:35:32 +0000 | [diff] [blame] | 3166 | register ssize_t |
| 3167 | x; |
| 3168 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3169 | if (status == MagickFalse) |
| 3170 | continue; |
cristy | 7d9d8ca | 2012-12-20 17:11:08 +0000 | [diff] [blame] | 3171 | p=GetCacheViewVirtualPixels(image_view,-1,y-1,linear_image->columns+2,3, |
| 3172 | exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3173 | q=QueueCacheViewAuthenticPixels(shade_view,0,y,shade_image->columns,1, |
| 3174 | exception); |
cristy | 4c08aed | 2011-07-01 19:47:50 +0000 | [diff] [blame] | 3175 | if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3176 | { |
| 3177 | status=MagickFalse; |
| 3178 | continue; |
| 3179 | } |
| 3180 | /* |
| 3181 | Shade this row of pixels. |
| 3182 | */ |
| 3183 | normal.z=2.0*(double) QuantumRange; /* constant Z of surface normal */ |
cristy | 7d9d8ca | 2012-12-20 17:11:08 +0000 | [diff] [blame] | 3184 | pre=p+GetPixelChannels(linear_image); |
| 3185 | center=pre+(linear_image->columns+2)*GetPixelChannels(linear_image); |
| 3186 | post=center+(linear_image->columns+2)*GetPixelChannels(linear_image); |
| 3187 | for (x=0; x < (ssize_t) linear_image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3188 | { |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 3189 | register ssize_t |
| 3190 | i; |
| 3191 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3192 | /* |
| 3193 | Determine the surface normal and compute shading. |
| 3194 | */ |
cristy | 7d9d8ca | 2012-12-20 17:11:08 +0000 | [diff] [blame] | 3195 | normal.x=(double) ( |
| 3196 | GetPixelIntensity(linear_image,pre-GetPixelChannels(linear_image))+ |
| 3197 | GetPixelIntensity(linear_image,center-GetPixelChannels(linear_image))+ |
| 3198 | GetPixelIntensity(linear_image,post-GetPixelChannels(linear_image))- |
| 3199 | GetPixelIntensity(linear_image,pre+GetPixelChannels(linear_image))- |
| 3200 | GetPixelIntensity(linear_image,center+GetPixelChannels(linear_image))- |
| 3201 | GetPixelIntensity(linear_image,post+GetPixelChannels(linear_image))); |
| 3202 | normal.y=(double) ( |
| 3203 | GetPixelIntensity(linear_image,post-GetPixelChannels(linear_image))+ |
| 3204 | GetPixelIntensity(linear_image,post)+ |
| 3205 | GetPixelIntensity(linear_image,post+GetPixelChannels(linear_image))- |
| 3206 | GetPixelIntensity(linear_image,pre-GetPixelChannels(linear_image))- |
| 3207 | GetPixelIntensity(linear_image,pre)- |
| 3208 | GetPixelIntensity(linear_image,pre+GetPixelChannels(linear_image))); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3209 | if ((normal.x == 0.0) && (normal.y == 0.0)) |
| 3210 | shade=light.z; |
| 3211 | else |
| 3212 | { |
| 3213 | shade=0.0; |
| 3214 | distance=normal.x*light.x+normal.y*light.y+normal.z*light.z; |
| 3215 | if (distance > MagickEpsilon) |
| 3216 | { |
cristy | 7d9d8ca | 2012-12-20 17:11:08 +0000 | [diff] [blame] | 3217 | normal_distance=normal.x*normal.x+normal.y*normal.y+ |
| 3218 | normal.z*normal.z; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3219 | if (normal_distance > (MagickEpsilon*MagickEpsilon)) |
| 3220 | shade=distance/sqrt((double) normal_distance); |
| 3221 | } |
| 3222 | } |
cristy | 7d9d8ca | 2012-12-20 17:11:08 +0000 | [diff] [blame] | 3223 | for (i=0; i < (ssize_t) GetPixelChannels(linear_image); i++) |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 3224 | { |
cristy | 633067b | 2013-02-21 01:15:12 +0000 | [diff] [blame] | 3225 | PixelChannel |
| 3226 | channel; |
| 3227 | |
| 3228 | PixelTrait |
| 3229 | shade_traits, |
| 3230 | traits; |
| 3231 | |
| 3232 | channel=GetPixelChannelChannel(linear_image,i); |
| 3233 | traits=GetPixelChannelTraits(linear_image,channel); |
| 3234 | shade_traits=GetPixelChannelTraits(shade_image,channel); |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 3235 | if ((traits == UndefinedPixelTrait) || |
| 3236 | (shade_traits == UndefinedPixelTrait)) |
| 3237 | continue; |
cristy | 1eced09 | 2012-08-10 23:10:56 +0000 | [diff] [blame] | 3238 | if (((shade_traits & CopyPixelTrait) != 0) || |
cristy | 883fde1 | 2013-04-08 00:50:13 +0000 | [diff] [blame] | 3239 | (GetPixelReadMask(linear_image,center) == 0)) |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 3240 | { |
cristy | 0beccfa | 2011-09-25 20:47:53 +0000 | [diff] [blame] | 3241 | SetPixelChannel(shade_image,channel,center[i],q); |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 3242 | continue; |
| 3243 | } |
cristy | 2835003 | 2014-11-16 01:19:51 +0000 | [diff] [blame] | 3244 | if ((traits & UpdatePixelTrait) == 0) |
| 3245 | { |
| 3246 | SetPixelChannel(shade_image,channel,center[i],q); |
| 3247 | continue; |
| 3248 | } |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 3249 | if (gray != MagickFalse) |
| 3250 | { |
cristy | 0beccfa | 2011-09-25 20:47:53 +0000 | [diff] [blame] | 3251 | SetPixelChannel(shade_image,channel,ClampToQuantum(shade),q); |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 3252 | continue; |
| 3253 | } |
cristy | 0beccfa | 2011-09-25 20:47:53 +0000 | [diff] [blame] | 3254 | SetPixelChannel(shade_image,channel,ClampToQuantum(QuantumScale*shade* |
| 3255 | center[i]),q); |
cristy | 1e7aa31 | 2011-09-10 20:01:36 +0000 | [diff] [blame] | 3256 | } |
cristy | 7d9d8ca | 2012-12-20 17:11:08 +0000 | [diff] [blame] | 3257 | pre+=GetPixelChannels(linear_image); |
| 3258 | center+=GetPixelChannels(linear_image); |
| 3259 | post+=GetPixelChannels(linear_image); |
cristy | ed23157 | 2011-07-14 02:18:59 +0000 | [diff] [blame] | 3260 | q+=GetPixelChannels(shade_image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3261 | } |
| 3262 | if (SyncCacheViewAuthenticPixels(shade_view,exception) == MagickFalse) |
| 3263 | status=MagickFalse; |
| 3264 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 3265 | { |
| 3266 | MagickBooleanType |
| 3267 | proceed; |
| 3268 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 3269 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | f856154 | 2012-01-24 00:26:46 +0000 | [diff] [blame] | 3270 | #pragma omp critical (MagickCore_ShadeImage) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3271 | #endif |
| 3272 | proceed=SetImageProgress(image,ShadeImageTag,progress++,image->rows); |
| 3273 | if (proceed == MagickFalse) |
| 3274 | status=MagickFalse; |
| 3275 | } |
| 3276 | } |
| 3277 | shade_view=DestroyCacheView(shade_view); |
| 3278 | image_view=DestroyCacheView(image_view); |
cristy | 7d9d8ca | 2012-12-20 17:11:08 +0000 | [diff] [blame] | 3279 | linear_image=DestroyImage(linear_image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3280 | if (status == MagickFalse) |
| 3281 | shade_image=DestroyImage(shade_image); |
| 3282 | return(shade_image); |
| 3283 | } |
| 3284 | |
| 3285 | /* |
| 3286 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3287 | % % |
| 3288 | % % |
| 3289 | % % |
| 3290 | % S h a r p e n I m a g e % |
| 3291 | % % |
| 3292 | % % |
| 3293 | % % |
| 3294 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3295 | % |
| 3296 | % SharpenImage() sharpens the image. We convolve the image with a Gaussian |
| 3297 | % operator of the given radius and standard deviation (sigma). For |
| 3298 | % reasonable results, radius should be larger than sigma. Use a radius of 0 |
| 3299 | % and SharpenImage() selects a suitable radius for you. |
| 3300 | % |
| 3301 | % Using a separable kernel would be faster, but the negative weights cancel |
| 3302 | % out on the corners of the kernel producing often undesirable ringing in the |
| 3303 | % filtered result; this can be avoided by using a 2D gaussian shaped image |
| 3304 | % sharpening kernel instead. |
| 3305 | % |
| 3306 | % The format of the SharpenImage method is: |
| 3307 | % |
| 3308 | % Image *SharpenImage(const Image *image,const double radius, |
cristy | aa2c16c | 2012-03-25 22:21:35 +0000 | [diff] [blame] | 3309 | % const double sigma,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3310 | % |
| 3311 | % A description of each parameter follows: |
| 3312 | % |
| 3313 | % o image: the image. |
| 3314 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3315 | % o radius: the radius of the Gaussian, in pixels, not counting the center |
| 3316 | % pixel. |
| 3317 | % |
| 3318 | % o sigma: the standard deviation of the Laplacian, in pixels. |
| 3319 | % |
| 3320 | % o exception: return any errors or warnings in this structure. |
| 3321 | % |
| 3322 | */ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3323 | MagickExport Image *SharpenImage(const Image *image,const double radius, |
cristy | aa2c16c | 2012-03-25 22:21:35 +0000 | [diff] [blame] | 3324 | const double sigma,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3325 | { |
cristy | 09dbb82 | 2013-03-24 23:25:21 +0000 | [diff] [blame] | 3326 | double |
cristy | 0cfd567 | 2013-03-26 14:34:25 +0000 | [diff] [blame] | 3327 | gamma, |
cristy | 09dbb82 | 2013-03-24 23:25:21 +0000 | [diff] [blame] | 3328 | normalize; |
| 3329 | |
| 3330 | Image |
| 3331 | *sharp_image; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3332 | |
cristy | 41cbe68 | 2011-07-15 19:12:37 +0000 | [diff] [blame] | 3333 | KernelInfo |
| 3334 | *kernel_info; |
| 3335 | |
cristy | 09dbb82 | 2013-03-24 23:25:21 +0000 | [diff] [blame] | 3336 | register ssize_t |
| 3337 | i; |
| 3338 | |
| 3339 | size_t |
| 3340 | width; |
| 3341 | |
| 3342 | ssize_t |
| 3343 | j, |
| 3344 | u, |
| 3345 | v; |
cristy | 117ff17 | 2010-08-15 21:35:32 +0000 | [diff] [blame] | 3346 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3347 | assert(image != (const Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 3348 | assert(image->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3349 | if (image->debug != MagickFalse) |
| 3350 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 3351 | assert(exception != (ExceptionInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 3352 | assert(exception->signature == MagickCoreSignature); |
cristy | 09dbb82 | 2013-03-24 23:25:21 +0000 | [diff] [blame] | 3353 | width=GetOptimalKernelWidth2D(radius,sigma); |
cristy | 2c57b74 | 2014-10-31 00:40:34 +0000 | [diff] [blame] | 3354 | kernel_info=AcquireKernelInfo((const char *) NULL,exception); |
cristy | 41cbe68 | 2011-07-15 19:12:37 +0000 | [diff] [blame] | 3355 | if (kernel_info == (KernelInfo *) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3356 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
cristy | 09dbb82 | 2013-03-24 23:25:21 +0000 | [diff] [blame] | 3357 | (void) ResetMagickMemory(kernel_info,0,sizeof(*kernel_info)); |
| 3358 | kernel_info->width=width; |
| 3359 | kernel_info->height=width; |
cristy | f130711 | 2013-03-25 22:16:57 +0000 | [diff] [blame] | 3360 | kernel_info->x=(ssize_t) (width-1)/2; |
| 3361 | kernel_info->y=(ssize_t) (width-1)/2; |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 3362 | kernel_info->signature=MagickCoreSignature; |
cristy | 09dbb82 | 2013-03-24 23:25:21 +0000 | [diff] [blame] | 3363 | kernel_info->values=(MagickRealType *) MagickAssumeAligned( |
cristy | 39a5afb | 2013-03-26 19:09:41 +0000 | [diff] [blame] | 3364 | AcquireAlignedMemory(kernel_info->width,kernel_info->height* |
cristy | 09dbb82 | 2013-03-24 23:25:21 +0000 | [diff] [blame] | 3365 | sizeof(*kernel_info->values))); |
| 3366 | if (kernel_info->values == (MagickRealType *) NULL) |
| 3367 | { |
| 3368 | kernel_info=DestroyKernelInfo(kernel_info); |
| 3369 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 3370 | } |
| 3371 | normalize=0.0; |
| 3372 | j=(ssize_t) (kernel_info->width-1)/2; |
| 3373 | i=0; |
| 3374 | for (v=(-j); v <= j; v++) |
| 3375 | { |
| 3376 | for (u=(-j); u <= j; u++) |
| 3377 | { |
| 3378 | kernel_info->values[i]=(MagickRealType) (-exp(-((double) u*u+v*v)/(2.0* |
| 3379 | MagickSigma*MagickSigma))/(2.0*MagickPI*MagickSigma*MagickSigma)); |
| 3380 | normalize+=kernel_info->values[i]; |
| 3381 | i++; |
| 3382 | } |
| 3383 | } |
| 3384 | kernel_info->values[i/2]=(double) ((-2.0)*normalize); |
cristy | 78bfb0f | 2013-03-26 13:18:48 +0000 | [diff] [blame] | 3385 | normalize=0.0; |
cristy | 0cfd567 | 2013-03-26 14:34:25 +0000 | [diff] [blame] | 3386 | for (i=0; i < (ssize_t) (kernel_info->width*kernel_info->height); i++) |
cristy | 78bfb0f | 2013-03-26 13:18:48 +0000 | [diff] [blame] | 3387 | normalize+=kernel_info->values[i]; |
cristy | 0cfd567 | 2013-03-26 14:34:25 +0000 | [diff] [blame] | 3388 | gamma=PerceptibleReciprocal(normalize); |
| 3389 | for (i=0; i < (ssize_t) (kernel_info->width*kernel_info->height); i++) |
| 3390 | kernel_info->values[i]*=gamma; |
cristy | 7f391ce | 2013-03-27 11:03:11 +0000 | [diff] [blame] | 3391 | sharp_image=MorphologyApply(image,ConvolveMorphology,1,kernel_info, |
| 3392 | UndefinedCompositeOp,0.0,exception); |
cristy | 41cbe68 | 2011-07-15 19:12:37 +0000 | [diff] [blame] | 3393 | kernel_info=DestroyKernelInfo(kernel_info); |
cristy | 9dc4c51 | 2013-03-24 01:38:00 +0000 | [diff] [blame] | 3394 | return(sharp_image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3395 | } |
| 3396 | |
| 3397 | /* |
| 3398 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3399 | % % |
| 3400 | % % |
| 3401 | % % |
| 3402 | % S p r e a d I m a g e % |
| 3403 | % % |
| 3404 | % % |
| 3405 | % % |
| 3406 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3407 | % |
| 3408 | % SpreadImage() is a special effects method that randomly displaces each |
| 3409 | % pixel in a block defined by the radius parameter. |
| 3410 | % |
| 3411 | % The format of the SpreadImage method is: |
| 3412 | % |
| 3413 | % Image *SpreadImage(const Image *image,const double radius, |
Cristy | cc332e3 | 2015-08-09 12:15:50 -0400 | [diff] [blame] | 3414 | % ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3415 | % |
| 3416 | % A description of each parameter follows: |
| 3417 | % |
| 3418 | % o image: the image. |
| 3419 | % |
cristy | 5c4e258 | 2011-09-11 19:21:03 +0000 | [diff] [blame] | 3420 | % o radius: choose a random pixel in a neighborhood of this extent. |
| 3421 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3422 | % o exception: return any errors or warnings in this structure. |
| 3423 | % |
| 3424 | */ |
Cristy | cc332e3 | 2015-08-09 12:15:50 -0400 | [diff] [blame] | 3425 | |
| 3426 | static void inline SwapPixelComponent(Quantum *p,Quantum *q) |
| 3427 | { |
| 3428 | Quantum |
| 3429 | pixel; |
| 3430 | |
| 3431 | pixel=(*p); |
| 3432 | (*p)=(*q); |
| 3433 | (*q)=pixel; |
| 3434 | } |
| 3435 | |
Cristy | 1c03a24 | 2015-08-11 06:22:22 -0400 | [diff] [blame] | 3436 | static Image *InterpolateSpreadImage(const Image *image, |
| 3437 | const PixelInterpolateMethod method,const double radius, |
| 3438 | ExceptionInfo *exception) |
| 3439 | { |
| 3440 | #define SpreadImageTag "Spread/Image" |
| 3441 | |
| 3442 | CacheView |
| 3443 | *image_view, |
| 3444 | *spread_view; |
| 3445 | |
| 3446 | Image |
| 3447 | *spread_image; |
| 3448 | |
| 3449 | MagickBooleanType |
| 3450 | status; |
| 3451 | |
| 3452 | MagickOffsetType |
| 3453 | progress; |
| 3454 | |
| 3455 | RandomInfo |
| 3456 | **restrict random_info; |
| 3457 | |
| 3458 | size_t |
| 3459 | width; |
| 3460 | |
| 3461 | ssize_t |
| 3462 | y; |
| 3463 | |
| 3464 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 3465 | unsigned long |
| 3466 | key; |
| 3467 | #endif |
| 3468 | |
| 3469 | /* |
| 3470 | Initialize spread image attributes. |
| 3471 | */ |
| 3472 | assert(image != (Image *) NULL); |
| 3473 | assert(image->signature == MagickCoreSignature); |
| 3474 | if (image->debug != MagickFalse) |
| 3475 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 3476 | assert(exception != (ExceptionInfo *) NULL); |
| 3477 | assert(exception->signature == MagickCoreSignature); |
| 3478 | spread_image=CloneImage(image,image->columns,image->rows,MagickTrue, |
| 3479 | exception); |
| 3480 | if (spread_image == (Image *) NULL) |
| 3481 | return((Image *) NULL); |
| 3482 | if (SetImageStorageClass(spread_image,DirectClass,exception) == MagickFalse) |
| 3483 | { |
| 3484 | spread_image=DestroyImage(spread_image); |
| 3485 | return((Image *) NULL); |
| 3486 | } |
| 3487 | /* |
| 3488 | Spread image. |
| 3489 | */ |
| 3490 | status=MagickTrue; |
| 3491 | progress=0; |
| 3492 | width=GetOptimalKernelWidth1D(radius,0.5); |
| 3493 | random_info=AcquireRandomInfoThreadSet(); |
| 3494 | image_view=AcquireVirtualCacheView(image,exception); |
| 3495 | spread_view=AcquireAuthenticCacheView(spread_image,exception); |
| 3496 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 3497 | key=GetRandomSecretKey(random_info[0]); |
| 3498 | #pragma omp parallel for schedule(static,4) shared(progress,status) \ |
| 3499 | magick_threads(image,spread_image,image->rows,key == ~0UL) |
| 3500 | #endif |
| 3501 | for (y=0; y < (ssize_t) image->rows; y++) |
| 3502 | { |
| 3503 | const int |
| 3504 | id = GetOpenMPThreadId(); |
| 3505 | |
| 3506 | register Quantum |
| 3507 | *restrict q; |
| 3508 | |
| 3509 | register ssize_t |
| 3510 | x; |
| 3511 | |
| 3512 | if (status == MagickFalse) |
| 3513 | continue; |
| 3514 | q=QueueCacheViewAuthenticPixels(spread_view,0,y,spread_image->columns,1, |
| 3515 | exception); |
| 3516 | if (q == (Quantum *) NULL) |
| 3517 | { |
| 3518 | status=MagickFalse; |
| 3519 | continue; |
| 3520 | } |
| 3521 | for (x=0; x < (ssize_t) image->columns; x++) |
| 3522 | { |
| 3523 | PointInfo |
| 3524 | point; |
| 3525 | |
| 3526 | point.x=GetPseudoRandomValue(random_info[id]); |
| 3527 | point.y=GetPseudoRandomValue(random_info[id]); |
| 3528 | status=InterpolatePixelChannels(image,image_view,spread_image,method, |
| 3529 | (double) x+width*(point.x-0.5),(double) y+width*(point.y-0.5),q, |
| 3530 | exception); |
| 3531 | q+=GetPixelChannels(spread_image); |
| 3532 | } |
| 3533 | if (SyncCacheViewAuthenticPixels(spread_view,exception) == MagickFalse) |
| 3534 | status=MagickFalse; |
| 3535 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 3536 | { |
| 3537 | MagickBooleanType |
| 3538 | proceed; |
| 3539 | |
| 3540 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 3541 | #pragma omp critical (MagickCore_SpreadImage) |
| 3542 | #endif |
| 3543 | proceed=SetImageProgress(image,SpreadImageTag,progress++,image->rows); |
| 3544 | if (proceed == MagickFalse) |
| 3545 | status=MagickFalse; |
| 3546 | } |
| 3547 | } |
| 3548 | spread_view=DestroyCacheView(spread_view); |
| 3549 | image_view=DestroyCacheView(image_view); |
| 3550 | random_info=DestroyRandomInfoThreadSet(random_info); |
| 3551 | if (status == MagickFalse) |
| 3552 | spread_image=DestroyImage(spread_image); |
| 3553 | return(spread_image); |
| 3554 | } |
| 3555 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3556 | MagickExport Image *SpreadImage(const Image *image,const double radius, |
Cristy | cc332e3 | 2015-08-09 12:15:50 -0400 | [diff] [blame] | 3557 | ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3558 | { |
| 3559 | #define SpreadImageTag "Spread/Image" |
| 3560 | |
cristy | fa11211 | 2010-01-04 17:48:07 +0000 | [diff] [blame] | 3561 | CacheView |
cristy | 9f7e7cb | 2011-03-26 00:49:57 +0000 | [diff] [blame] | 3562 | *image_view, |
| 3563 | *spread_view; |
cristy | fa11211 | 2010-01-04 17:48:07 +0000 | [diff] [blame] | 3564 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3565 | Image |
| 3566 | *spread_image; |
| 3567 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3568 | MagickBooleanType |
| 3569 | status; |
| 3570 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3571 | MagickOffsetType |
| 3572 | progress; |
| 3573 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3574 | RandomInfo |
Cristy | cc332e3 | 2015-08-09 12:15:50 -0400 | [diff] [blame] | 3575 | *restrict random_info; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3576 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3577 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3578 | width; |
| 3579 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3580 | ssize_t |
| 3581 | y; |
| 3582 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3583 | /* |
| 3584 | Initialize spread image attributes. |
| 3585 | */ |
| 3586 | assert(image != (Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 3587 | assert(image->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3588 | if (image->debug != MagickFalse) |
| 3589 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 3590 | assert(exception != (ExceptionInfo *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 3591 | assert(exception->signature == MagickCoreSignature); |
Cristy | 43b536b | 2015-08-20 20:04:04 -0400 | [diff] [blame^] | 3592 | if (image->interpolate != NearestInterpolatePixel) |
Cristy | 1c03a24 | 2015-08-11 06:22:22 -0400 | [diff] [blame] | 3593 | return(InterpolateSpreadImage(image,image->interpolate,radius,exception)); |
Cristy | cc332e3 | 2015-08-09 12:15:50 -0400 | [diff] [blame] | 3594 | spread_image=CloneImage(image,0,0,MagickTrue,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3595 | if (spread_image == (Image *) NULL) |
| 3596 | return((Image *) NULL); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3597 | /* |
| 3598 | Spread image. |
| 3599 | */ |
| 3600 | status=MagickTrue; |
| 3601 | progress=0; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3602 | width=GetOptimalKernelWidth1D(radius,0.5); |
Cristy | cc332e3 | 2015-08-09 12:15:50 -0400 | [diff] [blame] | 3603 | random_info=AcquireRandomInfo(); |
| 3604 | image_view=AcquireAuthenticCacheView(spread_image,exception); |
cristy | 46ff267 | 2012-12-14 15:32:26 +0000 | [diff] [blame] | 3605 | spread_view=AcquireAuthenticCacheView(spread_image,exception); |
cristy | be82ad5 | 2011-09-06 01:17:20 +0000 | [diff] [blame] | 3606 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3607 | { |
cristy | 117ff17 | 2010-08-15 21:35:32 +0000 | [diff] [blame] | 3608 | register ssize_t |
| 3609 | x; |
| 3610 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3611 | if (status == MagickFalse) |
| 3612 | continue; |
cristy | be82ad5 | 2011-09-06 01:17:20 +0000 | [diff] [blame] | 3613 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3614 | { |
Cristy | cc332e3 | 2015-08-09 12:15:50 -0400 | [diff] [blame] | 3615 | register Quantum |
| 3616 | *restrict p, |
| 3617 | *restrict q; |
cristy | be82ad5 | 2011-09-06 01:17:20 +0000 | [diff] [blame] | 3618 | |
Cristy | cc332e3 | 2015-08-09 12:15:50 -0400 | [diff] [blame] | 3619 | register ssize_t |
| 3620 | i; |
| 3621 | |
| 3622 | ssize_t |
| 3623 | x_offset, |
| 3624 | y_offset; |
| 3625 | |
| 3626 | for ( ; ; ) |
| 3627 | { |
Cristy | 4d8aeb1 | 2015-08-09 19:18:56 -0400 | [diff] [blame] | 3628 | x_offset=(ssize_t) floor((double) x+width* |
Cristy | b4e15f2 | 2015-08-10 06:29:20 -0400 | [diff] [blame] | 3629 | (GetPseudoRandomValue(random_info)-0.5)); |
Cristy | 4d8aeb1 | 2015-08-09 19:18:56 -0400 | [diff] [blame] | 3630 | y_offset=(ssize_t) floor((double) y+width* |
Cristy | b4e15f2 | 2015-08-10 06:29:20 -0400 | [diff] [blame] | 3631 | (GetPseudoRandomValue(random_info)-0.5)); |
Cristy | a049d38 | 2015-08-11 06:24:26 -0400 | [diff] [blame] | 3632 | if ((x_offset >= 0) && (x_offset < (ssize_t) image->columns) && |
| 3633 | (y_offset >= 0) && (y_offset < (ssize_t) image->rows)) |
Cristy | cc332e3 | 2015-08-09 12:15:50 -0400 | [diff] [blame] | 3634 | break; |
| 3635 | } |
| 3636 | p=GetCacheViewAuthenticPixels(image_view,x_offset,y_offset,1,1,exception); |
| 3637 | q=GetCacheViewAuthenticPixels(spread_view,x,y,1,1,exception); |
| 3638 | if ((p == (Quantum *) NULL) || (q == (Quantum *) NULL)) |
| 3639 | { |
| 3640 | status=MagickFalse; |
| 3641 | continue; |
| 3642 | } |
| 3643 | for (i=0; i < (ssize_t) GetPixelChannels(spread_image); i++) |
| 3644 | SwapPixelComponent(p+i,q+i); |
| 3645 | if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse) |
| 3646 | status=MagickFalse; |
| 3647 | if (SyncCacheViewAuthenticPixels(spread_view,exception) == MagickFalse) |
| 3648 | status=MagickFalse; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3649 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3650 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 3651 | { |
| 3652 | MagickBooleanType |
| 3653 | proceed; |
| 3654 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3655 | proceed=SetImageProgress(image,SpreadImageTag,progress++,image->rows); |
| 3656 | if (proceed == MagickFalse) |
| 3657 | status=MagickFalse; |
| 3658 | } |
| 3659 | } |
cristy | 9f7e7cb | 2011-03-26 00:49:57 +0000 | [diff] [blame] | 3660 | spread_view=DestroyCacheView(spread_view); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3661 | image_view=DestroyCacheView(image_view); |
Cristy | cc332e3 | 2015-08-09 12:15:50 -0400 | [diff] [blame] | 3662 | random_info=DestroyRandomInfo(random_info); |
cristy | 14aa8b9 | 2012-12-13 20:37:52 +0000 | [diff] [blame] | 3663 | if (status == MagickFalse) |
| 3664 | spread_image=DestroyImage(spread_image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3665 | return(spread_image); |
| 3666 | } |
| 3667 | |
| 3668 | /* |
| 3669 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3670 | % % |
| 3671 | % % |
| 3672 | % % |
| 3673 | % U n s h a r p M a s k I m a g e % |
| 3674 | % % |
| 3675 | % % |
| 3676 | % % |
| 3677 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3678 | % |
| 3679 | % UnsharpMaskImage() sharpens one or more image channels. We convolve the |
| 3680 | % image with a Gaussian operator of the given radius and standard deviation |
| 3681 | % (sigma). For reasonable results, radius should be larger than sigma. Use a |
| 3682 | % radius of 0 and UnsharpMaskImage() selects a suitable radius for you. |
| 3683 | % |
| 3684 | % The format of the UnsharpMaskImage method is: |
| 3685 | % |
| 3686 | % Image *UnsharpMaskImage(const Image *image,const double radius, |
cristy | 3afd401 | 2013-03-25 11:30:44 +0000 | [diff] [blame] | 3687 | % const double sigma,const double amount,const double threshold, |
| 3688 | % ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3689 | % |
| 3690 | % A description of each parameter follows: |
| 3691 | % |
| 3692 | % o image: the image. |
| 3693 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3694 | % o radius: the radius of the Gaussian, in pixels, not counting the center |
| 3695 | % pixel. |
| 3696 | % |
| 3697 | % o sigma: the standard deviation of the Gaussian, in pixels. |
| 3698 | % |
cristy | 2fd9be6 | 2013-03-23 20:44:18 +0000 | [diff] [blame] | 3699 | % o gain: the percentage of the difference between the original and the |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3700 | % blur image that is added back into the original. |
| 3701 | % |
cristy | 3afd401 | 2013-03-25 11:30:44 +0000 | [diff] [blame] | 3702 | % o threshold: the threshold in pixels needed to apply the diffence gain. |
| 3703 | % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3704 | % o exception: return any errors or warnings in this structure. |
| 3705 | % |
| 3706 | */ |
cristy | 31bb627 | 2011-11-20 23:57:25 +0000 | [diff] [blame] | 3707 | MagickExport Image *UnsharpMaskImage(const Image *image,const double radius, |
cristy | 3afd401 | 2013-03-25 11:30:44 +0000 | [diff] [blame] | 3708 | const double sigma,const double gain,const double threshold, |
| 3709 | ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3710 | { |
cristy | 3afd401 | 2013-03-25 11:30:44 +0000 | [diff] [blame] | 3711 | #define SharpenImageTag "Sharpen/Image" |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3712 | |
cristy | 3afd401 | 2013-03-25 11:30:44 +0000 | [diff] [blame] | 3713 | CacheView |
| 3714 | *image_view, |
| 3715 | *unsharp_view; |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 3716 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3717 | Image |
| 3718 | *unsharp_image; |
| 3719 | |
cristy | 3afd401 | 2013-03-25 11:30:44 +0000 | [diff] [blame] | 3720 | MagickBooleanType |
| 3721 | status; |
| 3722 | |
| 3723 | MagickOffsetType |
| 3724 | progress; |
| 3725 | |
| 3726 | double |
| 3727 | quantum_threshold; |
| 3728 | |
| 3729 | ssize_t |
| 3730 | y; |
| 3731 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3732 | assert(image != (const Image *) NULL); |
cristy | e1c94d9 | 2015-06-28 12:16:33 +0000 | [diff] [blame] | 3733 | assert(image->signature == MagickCoreSignature); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3734 | if (image->debug != MagickFalse) |
| 3735 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 3736 | assert(exception != (ExceptionInfo *) NULL); |
cristy | 3afd401 | 2013-03-25 11:30:44 +0000 | [diff] [blame] | 3737 | unsharp_image=BlurImage(image,radius,sigma,exception); |
| 3738 | if (unsharp_image == (Image *) NULL) |
| 3739 | return((Image *) NULL); |
| 3740 | quantum_threshold=(double) QuantumRange*threshold; |
| 3741 | /* |
| 3742 | Unsharp-mask image. |
| 3743 | */ |
| 3744 | status=MagickTrue; |
| 3745 | progress=0; |
| 3746 | image_view=AcquireVirtualCacheView(image,exception); |
| 3747 | unsharp_view=AcquireAuthenticCacheView(unsharp_image,exception); |
| 3748 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 3749 | #pragma omp parallel for schedule(static,4) shared(progress,status) \ |
| 3750 | magick_threads(image,unsharp_image,image->rows,1) |
| 3751 | #endif |
| 3752 | for (y=0; y < (ssize_t) image->rows; y++) |
| 3753 | { |
| 3754 | register const Quantum |
| 3755 | *restrict p; |
| 3756 | |
| 3757 | register Quantum |
| 3758 | *restrict q; |
| 3759 | |
| 3760 | register ssize_t |
| 3761 | x; |
| 3762 | |
| 3763 | if (status == MagickFalse) |
| 3764 | continue; |
| 3765 | p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception); |
| 3766 | q=QueueCacheViewAuthenticPixels(unsharp_view,0,y,unsharp_image->columns,1, |
| 3767 | exception); |
| 3768 | if ((p == (const Quantum *) NULL) || (q == (Quantum *) NULL)) |
| 3769 | { |
| 3770 | status=MagickFalse; |
| 3771 | continue; |
| 3772 | } |
| 3773 | for (x=0; x < (ssize_t) image->columns; x++) |
| 3774 | { |
| 3775 | register ssize_t |
| 3776 | i; |
| 3777 | |
| 3778 | for (i=0; i < (ssize_t) GetPixelChannels(image); i++) |
| 3779 | { |
| 3780 | double |
| 3781 | pixel; |
| 3782 | |
| 3783 | PixelChannel |
| 3784 | channel; |
| 3785 | |
| 3786 | PixelTrait |
| 3787 | traits, |
| 3788 | unsharp_traits; |
| 3789 | |
| 3790 | channel=GetPixelChannelChannel(image,i); |
| 3791 | traits=GetPixelChannelTraits(image,channel); |
| 3792 | unsharp_traits=GetPixelChannelTraits(unsharp_image,channel); |
| 3793 | if ((traits == UndefinedPixelTrait) || |
| 3794 | (unsharp_traits == UndefinedPixelTrait)) |
| 3795 | continue; |
| 3796 | if (((unsharp_traits & CopyPixelTrait) != 0) || |
dirk | 05d33c9 | 2014-09-04 21:03:28 +0000 | [diff] [blame] | 3797 | (GetPixelReadMask(image,p) == 0)) |
cristy | 3afd401 | 2013-03-25 11:30:44 +0000 | [diff] [blame] | 3798 | { |
| 3799 | SetPixelChannel(unsharp_image,channel,p[i],q); |
| 3800 | continue; |
| 3801 | } |
| 3802 | pixel=p[i]-(double) GetPixelChannel(unsharp_image,channel,q); |
| 3803 | if (fabs(2.0*pixel) < quantum_threshold) |
| 3804 | pixel=(double) p[i]; |
| 3805 | else |
| 3806 | pixel=(double) p[i]+gain*pixel; |
| 3807 | SetPixelChannel(unsharp_image,channel,ClampToQuantum(pixel),q); |
| 3808 | } |
| 3809 | p+=GetPixelChannels(image); |
| 3810 | q+=GetPixelChannels(unsharp_image); |
| 3811 | } |
| 3812 | if (SyncCacheViewAuthenticPixels(unsharp_view,exception) == MagickFalse) |
| 3813 | status=MagickFalse; |
| 3814 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 3815 | { |
| 3816 | MagickBooleanType |
| 3817 | proceed; |
| 3818 | |
| 3819 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 3820 | #pragma omp critical (MagickCore_UnsharpMaskImage) |
| 3821 | #endif |
| 3822 | proceed=SetImageProgress(image,SharpenImageTag,progress++,image->rows); |
| 3823 | if (proceed == MagickFalse) |
| 3824 | status=MagickFalse; |
| 3825 | } |
| 3826 | } |
| 3827 | unsharp_image->type=image->type; |
| 3828 | unsharp_view=DestroyCacheView(unsharp_view); |
| 3829 | image_view=DestroyCacheView(image_view); |
| 3830 | if (status == MagickFalse) |
| 3831 | unsharp_image=DestroyImage(unsharp_image); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3832 | return(unsharp_image); |
| 3833 | } |