cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1 | /* |
| 2 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3 | % % |
| 4 | % % |
| 5 | % % |
| 6 | % FFFFF X X % |
| 7 | % F X X % |
| 8 | % FFF X % |
| 9 | % F X X % |
| 10 | % F X X % |
| 11 | % % |
| 12 | % % |
| 13 | % MagickCore Image Special Effects Methods % |
| 14 | % % |
| 15 | % Software Design % |
| 16 | % John Cristy % |
| 17 | % October 1996 % |
| 18 | % % |
| 19 | % % |
cristy | 16af1cb | 2009-12-11 21:38:29 +0000 | [diff] [blame] | 20 | % Copyright 1999-2010 ImageMagick Studio LLC, a non-profit organization % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 21 | % dedicated to making software imaging solutions freely available. % |
| 22 | % % |
| 23 | % You may not use this file except in compliance with the License. You may % |
| 24 | % obtain a copy of the License at % |
| 25 | % % |
| 26 | % http://www.imagemagick.org/script/license.php % |
| 27 | % % |
| 28 | % Unless required by applicable law or agreed to in writing, software % |
| 29 | % distributed under the License is distributed on an "AS IS" BASIS, % |
| 30 | % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % |
| 31 | % See the License for the specific language governing permissions and % |
| 32 | % limitations under the License. % |
| 33 | % % |
| 34 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 35 | % |
| 36 | % |
| 37 | % |
| 38 | */ |
| 39 | |
| 40 | /* |
| 41 | Include declarations. |
| 42 | */ |
| 43 | #include "magick/studio.h" |
| 44 | #include "magick/annotate.h" |
| 45 | #include "magick/artifact.h" |
cristy | cd22010 | 2009-10-14 19:39:10 +0000 | [diff] [blame] | 46 | #include "magick/attribute.h" |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 47 | #include "magick/cache.h" |
| 48 | #include "magick/cache-view.h" |
| 49 | #include "magick/color.h" |
| 50 | #include "magick/color-private.h" |
| 51 | #include "magick/composite.h" |
| 52 | #include "magick/decorate.h" |
| 53 | #include "magick/draw.h" |
| 54 | #include "magick/effect.h" |
| 55 | #include "magick/enhance.h" |
| 56 | #include "magick/exception.h" |
| 57 | #include "magick/exception-private.h" |
| 58 | #include "magick/fx.h" |
| 59 | #include "magick/fx-private.h" |
| 60 | #include "magick/gem.h" |
| 61 | #include "magick/geometry.h" |
| 62 | #include "magick/layer.h" |
| 63 | #include "magick/list.h" |
| 64 | #include "magick/log.h" |
| 65 | #include "magick/image.h" |
| 66 | #include "magick/image-private.h" |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 67 | #include "magick/magick.h" |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 68 | #include "magick/memory_.h" |
| 69 | #include "magick/monitor.h" |
| 70 | #include "magick/monitor-private.h" |
| 71 | #include "magick/option.h" |
| 72 | #include "magick/pixel-private.h" |
| 73 | #include "magick/property.h" |
| 74 | #include "magick/quantum.h" |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 75 | #include "magick/quantum-private.h" |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 76 | #include "magick/random_.h" |
| 77 | #include "magick/random-private.h" |
| 78 | #include "magick/resample.h" |
| 79 | #include "magick/resample-private.h" |
| 80 | #include "magick/resize.h" |
| 81 | #include "magick/shear.h" |
| 82 | #include "magick/splay-tree.h" |
| 83 | #include "magick/statistic.h" |
| 84 | #include "magick/string_.h" |
cristy | f2f2727 | 2009-12-17 14:48:46 +0000 | [diff] [blame] | 85 | #include "magick/string-private.h" |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 86 | #include "magick/thread-private.h" |
| 87 | #include "magick/transform.h" |
| 88 | #include "magick/utility.h" |
| 89 | |
| 90 | /* |
| 91 | Define declarations. |
| 92 | */ |
| 93 | #define LeftShiftOperator 0xf5 |
| 94 | #define RightShiftOperator 0xf6 |
| 95 | #define LessThanEqualOperator 0xf7 |
| 96 | #define GreaterThanEqualOperator 0xf8 |
| 97 | #define EqualOperator 0xf9 |
| 98 | #define NotEqualOperator 0xfa |
| 99 | #define LogicalAndOperator 0xfb |
| 100 | #define LogicalOrOperator 0xfc |
cristy | 116af16 | 2010-08-13 01:25:47 +0000 | [diff] [blame] | 101 | #define ExponentialNotation 0xfd |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 102 | |
| 103 | struct _FxInfo |
| 104 | { |
| 105 | const Image |
| 106 | *images; |
| 107 | |
| 108 | MagickBooleanType |
| 109 | matte; |
| 110 | |
| 111 | char |
| 112 | *expression; |
| 113 | |
| 114 | FILE |
| 115 | *file; |
| 116 | |
| 117 | SplayTreeInfo |
| 118 | *colors, |
| 119 | *symbols; |
| 120 | |
| 121 | ResampleFilter |
| 122 | **resample_filter; |
| 123 | |
| 124 | RandomInfo |
| 125 | *random_info; |
| 126 | |
| 127 | ExceptionInfo |
| 128 | *exception; |
| 129 | }; |
| 130 | |
| 131 | /* |
| 132 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 133 | % % |
| 134 | % % |
| 135 | % % |
| 136 | + A c q u i r e F x I n f o % |
| 137 | % % |
| 138 | % % |
| 139 | % % |
| 140 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 141 | % |
| 142 | % AcquireFxInfo() allocates the FxInfo structure. |
| 143 | % |
| 144 | % The format of the AcquireFxInfo method is: |
| 145 | % |
| 146 | % FxInfo *AcquireFxInfo(Image *image,const char *expression) |
| 147 | % A description of each parameter follows: |
| 148 | % |
| 149 | % o image: the image. |
| 150 | % |
| 151 | % o expression: the expression. |
| 152 | % |
| 153 | */ |
| 154 | MagickExport FxInfo *AcquireFxInfo(const Image *image,const char *expression) |
| 155 | { |
| 156 | char |
| 157 | fx_op[2]; |
| 158 | |
| 159 | FxInfo |
| 160 | *fx_info; |
| 161 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 162 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 163 | i; |
| 164 | |
cristy | 9082321 | 2009-12-12 20:48:33 +0000 | [diff] [blame] | 165 | fx_info=(FxInfo *) AcquireAlignedMemory(1,sizeof(*fx_info)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 166 | if (fx_info == (FxInfo *) NULL) |
| 167 | ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed"); |
| 168 | (void) ResetMagickMemory(fx_info,0,sizeof(*fx_info)); |
| 169 | fx_info->exception=AcquireExceptionInfo(); |
| 170 | fx_info->images=image; |
| 171 | fx_info->matte=image->matte; |
| 172 | fx_info->colors=NewSplayTree(CompareSplayTreeString,RelinquishMagickMemory, |
| 173 | RelinquishMagickMemory); |
| 174 | fx_info->symbols=NewSplayTree(CompareSplayTreeString,RelinquishMagickMemory, |
| 175 | RelinquishMagickMemory); |
| 176 | fx_info->resample_filter=(ResampleFilter **) AcquireQuantumMemory( |
| 177 | GetImageListLength(fx_info->images),sizeof(*fx_info->resample_filter)); |
| 178 | if (fx_info->resample_filter == (ResampleFilter **) NULL) |
| 179 | ThrowFatalException(ResourceLimitFatalError,"MemoryAllocationFailed"); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 180 | for (i=0; i < (ssize_t) GetImageListLength(fx_info->images); i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 181 | { |
| 182 | fx_info->resample_filter[i]=AcquireResampleFilter(GetImageFromList( |
| 183 | fx_info->images,i),fx_info->exception); |
| 184 | SetResampleFilter(fx_info->resample_filter[i],PointFilter,1.0); |
| 185 | } |
| 186 | fx_info->random_info=AcquireRandomInfo(); |
| 187 | fx_info->expression=ConstantString(expression); |
| 188 | fx_info->file=stderr; |
| 189 | (void) SubstituteString(&fx_info->expression," ",""); /* compact string */ |
| 190 | if ((strstr(fx_info->expression,"e+") != (char *) NULL) || |
| 191 | (strstr(fx_info->expression,"e-") != (char *) NULL)) |
| 192 | { |
| 193 | /* |
cristy | 116af16 | 2010-08-13 01:25:47 +0000 | [diff] [blame] | 194 | Convert scientific notation. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 195 | */ |
cristy | 116af16 | 2010-08-13 01:25:47 +0000 | [diff] [blame] | 196 | (void) SubstituteString(&fx_info->expression,"0e+","0**10^"); |
| 197 | (void) SubstituteString(&fx_info->expression,"1e+","1**10^"); |
| 198 | (void) SubstituteString(&fx_info->expression,"2e+","2**10^"); |
| 199 | (void) SubstituteString(&fx_info->expression,"3e+","3**10^"); |
| 200 | (void) SubstituteString(&fx_info->expression,"4e+","4**10^"); |
| 201 | (void) SubstituteString(&fx_info->expression,"5e+","5**10^"); |
| 202 | (void) SubstituteString(&fx_info->expression,"6e+","6**10^"); |
| 203 | (void) SubstituteString(&fx_info->expression,"7e+","7**10^"); |
| 204 | (void) SubstituteString(&fx_info->expression,"8e+","8**10^"); |
| 205 | (void) SubstituteString(&fx_info->expression,"9e+","9**10^"); |
| 206 | (void) SubstituteString(&fx_info->expression,"0e-","0**10^-"); |
| 207 | (void) SubstituteString(&fx_info->expression,"1e-","1**10^-"); |
| 208 | (void) SubstituteString(&fx_info->expression,"2e-","2**10^-"); |
| 209 | (void) SubstituteString(&fx_info->expression,"3e-","3**10^-"); |
| 210 | (void) SubstituteString(&fx_info->expression,"4e-","4**10^-"); |
| 211 | (void) SubstituteString(&fx_info->expression,"5e-","5**10^-"); |
| 212 | (void) SubstituteString(&fx_info->expression,"6e-","6**10^-"); |
| 213 | (void) SubstituteString(&fx_info->expression,"7e-","7**10^-"); |
| 214 | (void) SubstituteString(&fx_info->expression,"8e-","8**10^-"); |
| 215 | (void) SubstituteString(&fx_info->expression,"9e-","9**10^-"); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 216 | } |
| 217 | /* |
| 218 | Convert complex to simple operators. |
| 219 | */ |
| 220 | fx_op[1]='\0'; |
| 221 | *fx_op=(char) LeftShiftOperator; |
| 222 | (void) SubstituteString(&fx_info->expression,"<<",fx_op); |
| 223 | *fx_op=(char) RightShiftOperator; |
| 224 | (void) SubstituteString(&fx_info->expression,">>",fx_op); |
| 225 | *fx_op=(char) LessThanEqualOperator; |
| 226 | (void) SubstituteString(&fx_info->expression,"<=",fx_op); |
| 227 | *fx_op=(char) GreaterThanEqualOperator; |
| 228 | (void) SubstituteString(&fx_info->expression,">=",fx_op); |
| 229 | *fx_op=(char) EqualOperator; |
| 230 | (void) SubstituteString(&fx_info->expression,"==",fx_op); |
| 231 | *fx_op=(char) NotEqualOperator; |
| 232 | (void) SubstituteString(&fx_info->expression,"!=",fx_op); |
| 233 | *fx_op=(char) LogicalAndOperator; |
| 234 | (void) SubstituteString(&fx_info->expression,"&&",fx_op); |
| 235 | *fx_op=(char) LogicalOrOperator; |
| 236 | (void) SubstituteString(&fx_info->expression,"||",fx_op); |
cristy | 116af16 | 2010-08-13 01:25:47 +0000 | [diff] [blame] | 237 | *fx_op=(char) ExponentialNotation; |
| 238 | (void) SubstituteString(&fx_info->expression,"**",fx_op); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 239 | return(fx_info); |
| 240 | } |
| 241 | |
| 242 | /* |
| 243 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 244 | % % |
| 245 | % % |
| 246 | % % |
| 247 | % A d d N o i s e I m a g e % |
| 248 | % % |
| 249 | % % |
| 250 | % % |
| 251 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 252 | % |
| 253 | % AddNoiseImage() adds random noise to the image. |
| 254 | % |
| 255 | % The format of the AddNoiseImage method is: |
| 256 | % |
| 257 | % Image *AddNoiseImage(const Image *image,const NoiseType noise_type, |
| 258 | % ExceptionInfo *exception) |
| 259 | % Image *AddNoiseImageChannel(const Image *image,const ChannelType channel, |
| 260 | % const NoiseType noise_type,ExceptionInfo *exception) |
| 261 | % |
| 262 | % A description of each parameter follows: |
| 263 | % |
| 264 | % o image: the image. |
| 265 | % |
| 266 | % o channel: the channel type. |
| 267 | % |
| 268 | % o noise_type: The type of noise: Uniform, Gaussian, Multiplicative, |
| 269 | % Impulse, Laplacian, or Poisson. |
| 270 | % |
| 271 | % o exception: return any errors or warnings in this structure. |
| 272 | % |
| 273 | */ |
| 274 | MagickExport Image *AddNoiseImage(const Image *image,const NoiseType noise_type, |
| 275 | ExceptionInfo *exception) |
| 276 | { |
| 277 | Image |
| 278 | *noise_image; |
| 279 | |
| 280 | noise_image=AddNoiseImageChannel(image,DefaultChannels,noise_type,exception); |
| 281 | return(noise_image); |
| 282 | } |
| 283 | |
| 284 | MagickExport Image *AddNoiseImageChannel(const Image *image, |
| 285 | const ChannelType channel,const NoiseType noise_type,ExceptionInfo *exception) |
| 286 | { |
| 287 | #define AddNoiseImageTag "AddNoise/Image" |
| 288 | |
cristy | fa11211 | 2010-01-04 17:48:07 +0000 | [diff] [blame] | 289 | CacheView |
| 290 | *image_view, |
| 291 | *noise_view; |
| 292 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 293 | const char |
| 294 | *option; |
| 295 | |
| 296 | Image |
| 297 | *noise_image; |
| 298 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 299 | MagickBooleanType |
| 300 | status; |
| 301 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 302 | MagickOffsetType |
| 303 | progress; |
| 304 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 305 | MagickRealType |
| 306 | attenuate; |
| 307 | |
| 308 | RandomInfo |
cristy | fa11211 | 2010-01-04 17:48:07 +0000 | [diff] [blame] | 309 | **restrict random_info; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 310 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 311 | ssize_t |
| 312 | y; |
| 313 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 314 | /* |
| 315 | Initialize noise image attributes. |
| 316 | */ |
| 317 | assert(image != (const Image *) NULL); |
| 318 | assert(image->signature == MagickSignature); |
| 319 | if (image->debug != MagickFalse) |
| 320 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 321 | assert(exception != (ExceptionInfo *) NULL); |
| 322 | assert(exception->signature == MagickSignature); |
| 323 | noise_image=CloneImage(image,0,0,MagickTrue,exception); |
| 324 | if (noise_image == (Image *) NULL) |
| 325 | return((Image *) NULL); |
| 326 | if (SetImageStorageClass(noise_image,DirectClass) == MagickFalse) |
| 327 | { |
| 328 | InheritException(exception,&noise_image->exception); |
| 329 | noise_image=DestroyImage(noise_image); |
| 330 | return((Image *) NULL); |
| 331 | } |
| 332 | /* |
| 333 | Add noise in each row. |
| 334 | */ |
| 335 | attenuate=1.0; |
| 336 | option=GetImageArtifact(image,"attenuate"); |
| 337 | if (option != (char *) NULL) |
cristy | f2f2727 | 2009-12-17 14:48:46 +0000 | [diff] [blame] | 338 | attenuate=StringToDouble(option); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 339 | status=MagickTrue; |
| 340 | progress=0; |
| 341 | random_info=AcquireRandomInfoThreadSet(); |
| 342 | image_view=AcquireCacheView(image); |
| 343 | noise_view=AcquireCacheView(noise_image); |
cristy | 319a1e7 | 2010-02-21 15:13:11 +0000 | [diff] [blame] | 344 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 345 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 346 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 347 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 348 | { |
cristy | 6ebe97c | 2010-07-03 01:17:28 +0000 | [diff] [blame] | 349 | int |
| 350 | id; |
| 351 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 352 | MagickBooleanType |
| 353 | sync; |
| 354 | |
| 355 | register const IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 356 | *restrict indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 357 | |
| 358 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 359 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 360 | |
| 361 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 362 | *restrict noise_indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 363 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 364 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 365 | x; |
| 366 | |
| 367 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 368 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 369 | |
| 370 | if (status == MagickFalse) |
| 371 | continue; |
| 372 | p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception); |
| 373 | q=GetCacheViewAuthenticPixels(noise_view,0,y,noise_image->columns,1, |
| 374 | exception); |
| 375 | if ((p == (PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 376 | { |
| 377 | status=MagickFalse; |
| 378 | continue; |
| 379 | } |
| 380 | indexes=GetCacheViewVirtualIndexQueue(image_view); |
| 381 | noise_indexes=GetCacheViewAuthenticIndexQueue(noise_view); |
| 382 | id=GetOpenMPThreadId(); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 383 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 384 | { |
| 385 | if ((channel & RedChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 386 | q->red=ClampToQuantum(GenerateDifferentialNoise(random_info[id], |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 387 | p->red,noise_type,attenuate)); |
| 388 | if ((channel & GreenChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 389 | q->green=ClampToQuantum(GenerateDifferentialNoise(random_info[id], |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 390 | p->green,noise_type,attenuate)); |
| 391 | if ((channel & BlueChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 392 | q->blue=ClampToQuantum(GenerateDifferentialNoise(random_info[id], |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 393 | p->blue,noise_type,attenuate)); |
| 394 | if ((channel & OpacityChannel) != 0) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 395 | q->opacity=ClampToQuantum(GenerateDifferentialNoise(random_info[id], |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 396 | p->opacity,noise_type,attenuate)); |
| 397 | if (((channel & IndexChannel) != 0) && |
| 398 | (image->colorspace == CMYKColorspace)) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 399 | noise_indexes[x]=(IndexPacket) ClampToQuantum(GenerateDifferentialNoise( |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 400 | random_info[id],indexes[x],noise_type,attenuate)); |
| 401 | p++; |
| 402 | q++; |
| 403 | } |
| 404 | sync=SyncCacheViewAuthenticPixels(noise_view,exception); |
| 405 | if (sync == MagickFalse) |
| 406 | status=MagickFalse; |
| 407 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 408 | { |
| 409 | MagickBooleanType |
| 410 | proceed; |
| 411 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 412 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 319a1e7 | 2010-02-21 15:13:11 +0000 | [diff] [blame] | 413 | #pragma omp critical (MagickCore_AddNoiseImage) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 414 | #endif |
| 415 | proceed=SetImageProgress(image,AddNoiseImageTag,progress++, |
| 416 | image->rows); |
| 417 | if (proceed == MagickFalse) |
| 418 | status=MagickFalse; |
| 419 | } |
| 420 | } |
| 421 | noise_view=DestroyCacheView(noise_view); |
| 422 | image_view=DestroyCacheView(image_view); |
| 423 | random_info=DestroyRandomInfoThreadSet(random_info); |
| 424 | if (status == MagickFalse) |
| 425 | noise_image=DestroyImage(noise_image); |
| 426 | return(noise_image); |
| 427 | } |
| 428 | |
| 429 | /* |
| 430 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 431 | % % |
| 432 | % % |
| 433 | % % |
| 434 | % B l u e S h i f t I m a g e % |
| 435 | % % |
| 436 | % % |
| 437 | % % |
| 438 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 439 | % |
| 440 | % BlueShiftImage() mutes the colors of the image to simulate a scene at |
| 441 | % nighttime in the moonlight. |
| 442 | % |
| 443 | % The format of the BlueShiftImage method is: |
| 444 | % |
| 445 | % Image *BlueShiftImage(const Image *image,const double factor, |
| 446 | % ExceptionInfo *exception) |
| 447 | % |
| 448 | % A description of each parameter follows: |
| 449 | % |
| 450 | % o image: the image. |
| 451 | % |
| 452 | % o factor: the shift factor. |
| 453 | % |
| 454 | % o exception: return any errors or warnings in this structure. |
| 455 | % |
| 456 | */ |
| 457 | MagickExport Image *BlueShiftImage(const Image *image,const double factor, |
| 458 | ExceptionInfo *exception) |
| 459 | { |
| 460 | #define BlueShiftImageTag "BlueShift/Image" |
| 461 | |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 462 | CacheView |
| 463 | *image_view, |
| 464 | *shift_view; |
| 465 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 466 | Image |
| 467 | *shift_image; |
| 468 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 469 | MagickBooleanType |
| 470 | status; |
| 471 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 472 | MagickOffsetType |
| 473 | progress; |
| 474 | |
| 475 | ssize_t |
| 476 | y; |
| 477 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 478 | /* |
| 479 | Allocate blue shift image. |
| 480 | */ |
| 481 | assert(image != (const Image *) NULL); |
| 482 | assert(image->signature == MagickSignature); |
| 483 | if (image->debug != MagickFalse) |
| 484 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 485 | assert(exception != (ExceptionInfo *) NULL); |
| 486 | assert(exception->signature == MagickSignature); |
| 487 | shift_image=CloneImage(image,image->columns,image->rows,MagickTrue, |
| 488 | exception); |
| 489 | if (shift_image == (Image *) NULL) |
| 490 | return((Image *) NULL); |
| 491 | if (SetImageStorageClass(shift_image,DirectClass) == MagickFalse) |
| 492 | { |
| 493 | InheritException(exception,&shift_image->exception); |
| 494 | shift_image=DestroyImage(shift_image); |
| 495 | return((Image *) NULL); |
| 496 | } |
| 497 | /* |
| 498 | Blue-shift DirectClass image. |
| 499 | */ |
| 500 | status=MagickTrue; |
| 501 | progress=0; |
| 502 | image_view=AcquireCacheView(image); |
| 503 | shift_view=AcquireCacheView(shift_image); |
cristy | 319a1e7 | 2010-02-21 15:13:11 +0000 | [diff] [blame] | 504 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 505 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 506 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 507 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 508 | { |
| 509 | MagickBooleanType |
| 510 | sync; |
| 511 | |
| 512 | MagickPixelPacket |
| 513 | pixel; |
| 514 | |
| 515 | Quantum |
| 516 | quantum; |
| 517 | |
| 518 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 519 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 520 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 521 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 522 | x; |
| 523 | |
| 524 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 525 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 526 | |
| 527 | if (status == MagickFalse) |
| 528 | continue; |
| 529 | p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception); |
| 530 | q=QueueCacheViewAuthenticPixels(shift_view,0,y,shift_image->columns,1, |
| 531 | exception); |
| 532 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 533 | { |
| 534 | status=MagickFalse; |
| 535 | continue; |
| 536 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 537 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 538 | { |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 539 | quantum=GetRedPixelComponent(p); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 540 | if (p->green < quantum) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 541 | quantum=GetGreenPixelComponent(p); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 542 | if (p->blue < quantum) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 543 | quantum=GetBluePixelComponent(p); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 544 | pixel.red=0.5*(p->red+factor*quantum); |
| 545 | pixel.green=0.5*(p->green+factor*quantum); |
| 546 | pixel.blue=0.5*(p->blue+factor*quantum); |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 547 | quantum=GetRedPixelComponent(p); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 548 | if (p->green > quantum) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 549 | quantum=GetGreenPixelComponent(p); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 550 | if (p->blue > quantum) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 551 | quantum=GetBluePixelComponent(p); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 552 | pixel.red=0.5*(pixel.red+factor*quantum); |
| 553 | pixel.green=0.5*(pixel.green+factor*quantum); |
| 554 | pixel.blue=0.5*(pixel.blue+factor*quantum); |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 555 | SetRedPixelComponent(q,ClampRedPixelComponent(&pixel)); |
| 556 | SetGreenPixelComponent(q,ClampGreenPixelComponent(&pixel)); |
| 557 | SetBluePixelComponent(q,ClampBluePixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 558 | p++; |
| 559 | q++; |
| 560 | } |
| 561 | sync=SyncCacheViewAuthenticPixels(shift_view,exception); |
| 562 | if (sync == MagickFalse) |
| 563 | status=MagickFalse; |
| 564 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 565 | { |
| 566 | MagickBooleanType |
| 567 | proceed; |
| 568 | |
cristy | 319a1e7 | 2010-02-21 15:13:11 +0000 | [diff] [blame] | 569 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 570 | #pragma omp critical (MagickCore_BlueShiftImage) |
| 571 | #endif |
| 572 | proceed=SetImageProgress(image,BlueShiftImageTag,progress++, |
| 573 | image->rows); |
| 574 | if (proceed == MagickFalse) |
| 575 | status=MagickFalse; |
| 576 | } |
| 577 | } |
| 578 | image_view=DestroyCacheView(image_view); |
| 579 | shift_view=DestroyCacheView(shift_view); |
| 580 | if (status == MagickFalse) |
| 581 | shift_image=DestroyImage(shift_image); |
| 582 | return(shift_image); |
| 583 | } |
| 584 | |
| 585 | /* |
| 586 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 587 | % % |
| 588 | % % |
| 589 | % % |
| 590 | % C h a r c o a l I m a g e % |
| 591 | % % |
| 592 | % % |
| 593 | % % |
| 594 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 595 | % |
| 596 | % CharcoalImage() creates a new image that is a copy of an existing one with |
| 597 | % the edge highlighted. It allocates the memory necessary for the new Image |
| 598 | % structure and returns a pointer to the new image. |
| 599 | % |
| 600 | % The format of the CharcoalImage method is: |
| 601 | % |
| 602 | % Image *CharcoalImage(const Image *image,const double radius, |
| 603 | % const double sigma,ExceptionInfo *exception) |
| 604 | % |
| 605 | % A description of each parameter follows: |
| 606 | % |
| 607 | % o image: the image. |
| 608 | % |
| 609 | % o radius: the radius of the pixel neighborhood. |
| 610 | % |
| 611 | % o sigma: the standard deviation of the Gaussian, in pixels. |
| 612 | % |
| 613 | % o exception: return any errors or warnings in this structure. |
| 614 | % |
| 615 | */ |
| 616 | MagickExport Image *CharcoalImage(const Image *image,const double radius, |
| 617 | const double sigma,ExceptionInfo *exception) |
| 618 | { |
| 619 | Image |
| 620 | *charcoal_image, |
| 621 | *clone_image, |
| 622 | *edge_image; |
| 623 | |
| 624 | assert(image != (Image *) NULL); |
| 625 | assert(image->signature == MagickSignature); |
| 626 | if (image->debug != MagickFalse) |
| 627 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 628 | assert(exception != (ExceptionInfo *) NULL); |
| 629 | assert(exception->signature == MagickSignature); |
| 630 | clone_image=CloneImage(image,0,0,MagickTrue,exception); |
| 631 | if (clone_image == (Image *) NULL) |
| 632 | return((Image *) NULL); |
| 633 | (void) SetImageType(clone_image,GrayscaleType); |
| 634 | edge_image=EdgeImage(clone_image,radius,exception); |
| 635 | clone_image=DestroyImage(clone_image); |
| 636 | if (edge_image == (Image *) NULL) |
| 637 | return((Image *) NULL); |
| 638 | charcoal_image=BlurImage(edge_image,radius,sigma,exception); |
| 639 | edge_image=DestroyImage(edge_image); |
| 640 | if (charcoal_image == (Image *) NULL) |
| 641 | return((Image *) NULL); |
| 642 | (void) NormalizeImage(charcoal_image); |
| 643 | (void) NegateImage(charcoal_image,MagickFalse); |
| 644 | (void) SetImageType(charcoal_image,GrayscaleType); |
| 645 | return(charcoal_image); |
| 646 | } |
| 647 | |
| 648 | /* |
| 649 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 650 | % % |
| 651 | % % |
| 652 | % % |
| 653 | % C o l o r i z e I m a g e % |
| 654 | % % |
| 655 | % % |
| 656 | % % |
| 657 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 658 | % |
| 659 | % ColorizeImage() blends the fill color with each pixel in the image. |
| 660 | % A percentage blend is specified with opacity. Control the application |
| 661 | % of different color components by specifying a different percentage for |
| 662 | % each component (e.g. 90/100/10 is 90% red, 100% green, and 10% blue). |
| 663 | % |
| 664 | % The format of the ColorizeImage method is: |
| 665 | % |
| 666 | % Image *ColorizeImage(const Image *image,const char *opacity, |
| 667 | % const PixelPacket colorize,ExceptionInfo *exception) |
| 668 | % |
| 669 | % A description of each parameter follows: |
| 670 | % |
| 671 | % o image: the image. |
| 672 | % |
| 673 | % o opacity: A character string indicating the level of opacity as a |
| 674 | % percentage. |
| 675 | % |
| 676 | % o colorize: A color value. |
| 677 | % |
| 678 | % o exception: return any errors or warnings in this structure. |
| 679 | % |
| 680 | */ |
| 681 | MagickExport Image *ColorizeImage(const Image *image,const char *opacity, |
| 682 | const PixelPacket colorize,ExceptionInfo *exception) |
| 683 | { |
| 684 | #define ColorizeImageTag "Colorize/Image" |
| 685 | |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 686 | CacheView |
| 687 | *colorize_view, |
| 688 | *image_view; |
| 689 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 690 | GeometryInfo |
| 691 | geometry_info; |
| 692 | |
| 693 | Image |
| 694 | *colorize_image; |
| 695 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 696 | MagickBooleanType |
| 697 | status; |
| 698 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 699 | MagickOffsetType |
| 700 | progress; |
| 701 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 702 | MagickPixelPacket |
| 703 | pixel; |
| 704 | |
| 705 | MagickStatusType |
| 706 | flags; |
| 707 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 708 | ssize_t |
| 709 | y; |
| 710 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 711 | /* |
| 712 | Allocate colorized image. |
| 713 | */ |
| 714 | assert(image != (const Image *) NULL); |
| 715 | assert(image->signature == MagickSignature); |
| 716 | if (image->debug != MagickFalse) |
| 717 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 718 | assert(exception != (ExceptionInfo *) NULL); |
| 719 | assert(exception->signature == MagickSignature); |
| 720 | colorize_image=CloneImage(image,image->columns,image->rows,MagickTrue, |
| 721 | exception); |
| 722 | if (colorize_image == (Image *) NULL) |
| 723 | return((Image *) NULL); |
| 724 | if (SetImageStorageClass(colorize_image,DirectClass) == MagickFalse) |
| 725 | { |
| 726 | InheritException(exception,&colorize_image->exception); |
| 727 | colorize_image=DestroyImage(colorize_image); |
| 728 | return((Image *) NULL); |
| 729 | } |
| 730 | if (opacity == (const char *) NULL) |
| 731 | return(colorize_image); |
| 732 | /* |
| 733 | Determine RGB values of the pen color. |
| 734 | */ |
| 735 | flags=ParseGeometry(opacity,&geometry_info); |
| 736 | pixel.red=geometry_info.rho; |
| 737 | pixel.green=geometry_info.rho; |
| 738 | pixel.blue=geometry_info.rho; |
| 739 | pixel.opacity=(MagickRealType) OpaqueOpacity; |
| 740 | if ((flags & SigmaValue) != 0) |
| 741 | pixel.green=geometry_info.sigma; |
| 742 | if ((flags & XiValue) != 0) |
| 743 | pixel.blue=geometry_info.xi; |
| 744 | if ((flags & PsiValue) != 0) |
| 745 | pixel.opacity=geometry_info.psi; |
| 746 | /* |
| 747 | Colorize DirectClass image. |
| 748 | */ |
| 749 | status=MagickTrue; |
| 750 | progress=0; |
| 751 | image_view=AcquireCacheView(image); |
| 752 | colorize_view=AcquireCacheView(colorize_image); |
cristy | 319a1e7 | 2010-02-21 15:13:11 +0000 | [diff] [blame] | 753 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 754 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 755 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 756 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 757 | { |
| 758 | MagickBooleanType |
| 759 | sync; |
| 760 | |
| 761 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 762 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 763 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 764 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 765 | x; |
| 766 | |
| 767 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 768 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 769 | |
| 770 | if (status == MagickFalse) |
| 771 | continue; |
| 772 | p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception); |
| 773 | q=QueueCacheViewAuthenticPixels(colorize_view,0,y,colorize_image->columns,1, |
| 774 | exception); |
| 775 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 776 | { |
| 777 | status=MagickFalse; |
| 778 | continue; |
| 779 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 780 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 781 | { |
| 782 | q->red=(Quantum) ((p->red*(100.0-pixel.red)+ |
| 783 | colorize.red*pixel.red)/100.0); |
| 784 | q->green=(Quantum) ((p->green*(100.0-pixel.green)+ |
| 785 | colorize.green*pixel.green)/100.0); |
| 786 | q->blue=(Quantum) ((p->blue*(100.0-pixel.blue)+ |
| 787 | colorize.blue*pixel.blue)/100.0); |
| 788 | q->opacity=(Quantum) ((p->opacity*(100.0-pixel.opacity)+ |
| 789 | colorize.opacity*pixel.opacity)/100.0); |
| 790 | p++; |
| 791 | q++; |
| 792 | } |
| 793 | sync=SyncCacheViewAuthenticPixels(colorize_view,exception); |
| 794 | if (sync == MagickFalse) |
| 795 | status=MagickFalse; |
| 796 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 797 | { |
| 798 | MagickBooleanType |
| 799 | proceed; |
| 800 | |
cristy | 319a1e7 | 2010-02-21 15:13:11 +0000 | [diff] [blame] | 801 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 802 | #pragma omp critical (MagickCore_ColorizeImage) |
| 803 | #endif |
| 804 | proceed=SetImageProgress(image,ColorizeImageTag,progress++,image->rows); |
| 805 | if (proceed == MagickFalse) |
| 806 | status=MagickFalse; |
| 807 | } |
| 808 | } |
| 809 | image_view=DestroyCacheView(image_view); |
| 810 | colorize_view=DestroyCacheView(colorize_view); |
| 811 | if (status == MagickFalse) |
| 812 | colorize_image=DestroyImage(colorize_image); |
| 813 | return(colorize_image); |
| 814 | } |
| 815 | |
| 816 | /* |
| 817 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 818 | % % |
| 819 | % % |
| 820 | % % |
cristy | e636559 | 2010-04-02 17:31:23 +0000 | [diff] [blame] | 821 | % C o l o r M a t r i x I m a g e % |
| 822 | % % |
| 823 | % % |
| 824 | % % |
| 825 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 826 | % |
| 827 | % ColorMatrixImage() applies color transformation to an image. This method |
| 828 | % permits saturation changes, hue rotation, luminance to alpha, and various |
| 829 | % other effects. Although variable-sized transformation matrices can be used, |
| 830 | % typically one uses a 5x5 matrix for an RGBA image and a 6x6 for CMYKA |
| 831 | % (or RGBA with offsets). The matrix is similar to those used by Adobe Flash |
| 832 | % except offsets are in column 6 rather than 5 (in support of CMYKA images) |
| 833 | % and offsets are normalized (divide Flash offset by 255). |
| 834 | % |
| 835 | % The format of the ColorMatrixImage method is: |
| 836 | % |
| 837 | % Image *ColorMatrixImage(const Image *image, |
| 838 | % const KernelInfo *color_matrix,ExceptionInfo *exception) |
| 839 | % |
| 840 | % A description of each parameter follows: |
| 841 | % |
| 842 | % o image: the image. |
| 843 | % |
| 844 | % o color_matrix: the color matrix. |
| 845 | % |
| 846 | % o exception: return any errors or warnings in this structure. |
| 847 | % |
| 848 | */ |
| 849 | MagickExport Image *ColorMatrixImage(const Image *image, |
| 850 | const KernelInfo *color_matrix,ExceptionInfo *exception) |
| 851 | { |
| 852 | #define ColorMatrixImageTag "ColorMatrix/Image" |
| 853 | |
| 854 | CacheView |
| 855 | *color_view, |
| 856 | *image_view; |
| 857 | |
| 858 | double |
| 859 | ColorMatrix[6][6] = |
| 860 | { |
| 861 | { 1.0, 0.0, 0.0, 0.0, 0.0, 0.0 }, |
| 862 | { 0.0, 1.0, 0.0, 0.0, 0.0, 0.0 }, |
| 863 | { 0.0, 0.0, 1.0, 0.0, 0.0, 0.0 }, |
| 864 | { 0.0, 0.0, 0.0, 1.0, 0.0, 0.0 }, |
| 865 | { 0.0, 0.0, 0.0, 0.0, 1.0, 0.0 }, |
| 866 | { 0.0, 0.0, 0.0, 0.0, 0.0, 1.0 } |
| 867 | }; |
| 868 | |
| 869 | Image |
| 870 | *color_image; |
| 871 | |
cristy | e636559 | 2010-04-02 17:31:23 +0000 | [diff] [blame] | 872 | MagickBooleanType |
| 873 | status; |
| 874 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 875 | MagickOffsetType |
| 876 | progress; |
| 877 | |
| 878 | register ssize_t |
cristy | e636559 | 2010-04-02 17:31:23 +0000 | [diff] [blame] | 879 | i; |
| 880 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 881 | ssize_t |
| 882 | u, |
| 883 | v, |
| 884 | y; |
| 885 | |
cristy | e636559 | 2010-04-02 17:31:23 +0000 | [diff] [blame] | 886 | /* |
| 887 | Create color matrix. |
| 888 | */ |
| 889 | assert(image != (Image *) NULL); |
| 890 | assert(image->signature == MagickSignature); |
| 891 | if (image->debug != MagickFalse) |
| 892 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 893 | assert(exception != (ExceptionInfo *) NULL); |
| 894 | assert(exception->signature == MagickSignature); |
| 895 | i=0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 896 | for (v=0; v < (ssize_t) color_matrix->height; v++) |
| 897 | for (u=0; u < (ssize_t) color_matrix->width; u++) |
cristy | e636559 | 2010-04-02 17:31:23 +0000 | [diff] [blame] | 898 | { |
| 899 | if ((v < 6) && (u < 6)) |
| 900 | ColorMatrix[v][u]=color_matrix->values[i]; |
| 901 | i++; |
| 902 | } |
| 903 | /* |
| 904 | Initialize color image. |
| 905 | */ |
cristy | 12550e6 | 2010-06-07 12:46:40 +0000 | [diff] [blame] | 906 | color_image=CloneImage(image,0,0,MagickTrue,exception); |
cristy | e636559 | 2010-04-02 17:31:23 +0000 | [diff] [blame] | 907 | if (color_image == (Image *) NULL) |
| 908 | return((Image *) NULL); |
| 909 | if (SetImageStorageClass(color_image,DirectClass) == MagickFalse) |
| 910 | { |
| 911 | InheritException(exception,&color_image->exception); |
| 912 | color_image=DestroyImage(color_image); |
| 913 | return((Image *) NULL); |
| 914 | } |
| 915 | if (image->debug != MagickFalse) |
| 916 | { |
| 917 | char |
| 918 | format[MaxTextExtent], |
| 919 | *message; |
| 920 | |
| 921 | (void) LogMagickEvent(TransformEvent,GetMagickModule(), |
| 922 | " ColorMatrix image with color matrix:"); |
| 923 | message=AcquireString(""); |
| 924 | for (v=0; v < 6; v++) |
| 925 | { |
| 926 | *message='\0'; |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 927 | (void) FormatMagickString(format,MaxTextExtent,"%.20g: ",(double) v); |
cristy | e636559 | 2010-04-02 17:31:23 +0000 | [diff] [blame] | 928 | (void) ConcatenateString(&message,format); |
| 929 | for (u=0; u < 6; u++) |
| 930 | { |
| 931 | (void) FormatMagickString(format,MaxTextExtent,"%+f ", |
| 932 | ColorMatrix[v][u]); |
| 933 | (void) ConcatenateString(&message,format); |
| 934 | } |
| 935 | (void) LogMagickEvent(TransformEvent,GetMagickModule(),"%s",message); |
| 936 | } |
| 937 | message=DestroyString(message); |
| 938 | } |
| 939 | /* |
| 940 | ColorMatrix image. |
| 941 | */ |
| 942 | status=MagickTrue; |
| 943 | progress=0; |
| 944 | image_view=AcquireCacheView(image); |
| 945 | color_view=AcquireCacheView(color_image); |
| 946 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 947 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
| 948 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 949 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | e636559 | 2010-04-02 17:31:23 +0000 | [diff] [blame] | 950 | { |
| 951 | MagickRealType |
| 952 | pixel; |
| 953 | |
| 954 | register const IndexPacket |
| 955 | *restrict indexes; |
| 956 | |
| 957 | register const PixelPacket |
| 958 | *restrict p; |
| 959 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 960 | register ssize_t |
cristy | e636559 | 2010-04-02 17:31:23 +0000 | [diff] [blame] | 961 | x; |
| 962 | |
| 963 | register IndexPacket |
| 964 | *restrict color_indexes; |
| 965 | |
| 966 | register PixelPacket |
| 967 | *restrict q; |
| 968 | |
| 969 | if (status == MagickFalse) |
| 970 | continue; |
| 971 | p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception); |
| 972 | q=GetCacheViewAuthenticPixels(color_view,0,y,color_image->columns,1, |
| 973 | exception); |
| 974 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 975 | { |
| 976 | status=MagickFalse; |
| 977 | continue; |
| 978 | } |
| 979 | indexes=GetCacheViewVirtualIndexQueue(image_view); |
| 980 | color_indexes=GetCacheViewAuthenticIndexQueue(color_view); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 981 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | e636559 | 2010-04-02 17:31:23 +0000 | [diff] [blame] | 982 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 983 | register ssize_t |
cristy | e636559 | 2010-04-02 17:31:23 +0000 | [diff] [blame] | 984 | v; |
| 985 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 986 | size_t |
cristy | e636559 | 2010-04-02 17:31:23 +0000 | [diff] [blame] | 987 | height; |
| 988 | |
| 989 | height=color_matrix->height > 6 ? 6UL : color_matrix->height; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 990 | for (v=0; v < (ssize_t) height; v++) |
cristy | e636559 | 2010-04-02 17:31:23 +0000 | [diff] [blame] | 991 | { |
| 992 | pixel=ColorMatrix[v][0]*p->red+ColorMatrix[v][1]*p->green+ |
| 993 | ColorMatrix[v][2]*p->blue; |
| 994 | if (image->matte != MagickFalse) |
| 995 | pixel+=ColorMatrix[v][3]*(QuantumRange-p->opacity); |
| 996 | if (image->colorspace == CMYKColorspace) |
| 997 | pixel+=ColorMatrix[v][4]*indexes[x]; |
| 998 | pixel+=QuantumRange*ColorMatrix[v][5]; |
| 999 | switch (v) |
| 1000 | { |
| 1001 | case 0: q->red=ClampToQuantum(pixel); break; |
| 1002 | case 1: q->green=ClampToQuantum(pixel); break; |
| 1003 | case 2: q->blue=ClampToQuantum(pixel); break; |
| 1004 | case 3: |
| 1005 | { |
| 1006 | if (image->matte != MagickFalse) |
| 1007 | q->opacity=ClampToQuantum(QuantumRange-pixel); |
| 1008 | break; |
| 1009 | } |
| 1010 | case 4: |
| 1011 | { |
| 1012 | if (image->colorspace == CMYKColorspace) |
| 1013 | color_indexes[x]=ClampToQuantum(pixel); |
| 1014 | break; |
| 1015 | } |
| 1016 | } |
| 1017 | } |
| 1018 | p++; |
| 1019 | q++; |
| 1020 | } |
| 1021 | if (SyncCacheViewAuthenticPixels(color_view,exception) == MagickFalse) |
| 1022 | status=MagickFalse; |
| 1023 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 1024 | { |
| 1025 | MagickBooleanType |
| 1026 | proceed; |
| 1027 | |
| 1028 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 1029 | #pragma omp critical (MagickCore_ColorMatrixImage) |
| 1030 | #endif |
| 1031 | proceed=SetImageProgress(image,ColorMatrixImageTag,progress++, |
| 1032 | image->rows); |
| 1033 | if (proceed == MagickFalse) |
| 1034 | status=MagickFalse; |
| 1035 | } |
| 1036 | } |
| 1037 | color_view=DestroyCacheView(color_view); |
| 1038 | image_view=DestroyCacheView(image_view); |
| 1039 | if (status == MagickFalse) |
| 1040 | color_image=DestroyImage(color_image); |
| 1041 | return(color_image); |
| 1042 | } |
| 1043 | |
| 1044 | /* |
| 1045 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1046 | % % |
| 1047 | % % |
| 1048 | % % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1049 | + D e s t r o y F x I n f o % |
| 1050 | % % |
| 1051 | % % |
| 1052 | % % |
| 1053 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1054 | % |
| 1055 | % DestroyFxInfo() deallocates memory associated with an FxInfo structure. |
| 1056 | % |
| 1057 | % The format of the DestroyFxInfo method is: |
| 1058 | % |
| 1059 | % ImageInfo *DestroyFxInfo(ImageInfo *fx_info) |
| 1060 | % |
| 1061 | % A description of each parameter follows: |
| 1062 | % |
| 1063 | % o fx_info: the fx info. |
| 1064 | % |
| 1065 | */ |
| 1066 | MagickExport FxInfo *DestroyFxInfo(FxInfo *fx_info) |
| 1067 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1068 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1069 | i; |
| 1070 | |
| 1071 | fx_info->exception=DestroyExceptionInfo(fx_info->exception); |
| 1072 | fx_info->expression=DestroyString(fx_info->expression); |
| 1073 | fx_info->symbols=DestroySplayTree(fx_info->symbols); |
| 1074 | fx_info->colors=DestroySplayTree(fx_info->colors); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1075 | for (i=0; i < (ssize_t) GetImageListLength(fx_info->images); i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1076 | fx_info->resample_filter[i]=DestroyResampleFilter( |
| 1077 | fx_info->resample_filter[i]); |
| 1078 | fx_info->resample_filter=(ResampleFilter **) RelinquishMagickMemory( |
| 1079 | fx_info->resample_filter); |
| 1080 | fx_info->random_info=DestroyRandomInfo(fx_info->random_info); |
| 1081 | fx_info=(FxInfo *) RelinquishMagickMemory(fx_info); |
| 1082 | return(fx_info); |
| 1083 | } |
| 1084 | |
| 1085 | /* |
| 1086 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1087 | % % |
| 1088 | % % |
| 1089 | % % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1090 | + F x E v a l u a t e C h a n n e l E x p r e s s i o n % |
| 1091 | % % |
| 1092 | % % |
| 1093 | % % |
| 1094 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 1095 | % |
| 1096 | % FxEvaluateChannelExpression() evaluates an expression and returns the |
| 1097 | % results. |
| 1098 | % |
| 1099 | % The format of the FxEvaluateExpression method is: |
| 1100 | % |
| 1101 | % MagickRealType FxEvaluateChannelExpression(FxInfo *fx_info, |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1102 | % const ChannelType channel,const ssize_t x,const ssize_t y, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1103 | % MagickRealType *alpha,Exceptioninfo *exception) |
| 1104 | % MagickRealType FxEvaluateExpression(FxInfo *fx_info, |
| 1105 | % MagickRealType *alpha,Exceptioninfo *exception) |
| 1106 | % |
| 1107 | % A description of each parameter follows: |
| 1108 | % |
| 1109 | % o fx_info: the fx info. |
| 1110 | % |
| 1111 | % o channel: the channel. |
| 1112 | % |
| 1113 | % o x,y: the pixel position. |
| 1114 | % |
| 1115 | % o alpha: the result. |
| 1116 | % |
| 1117 | % o exception: return any errors or warnings in this structure. |
| 1118 | % |
| 1119 | */ |
| 1120 | |
cristy | 351842f | 2010-03-07 15:27:38 +0000 | [diff] [blame] | 1121 | static inline double MagickMax(const double x,const double y) |
| 1122 | { |
| 1123 | if (x > y) |
| 1124 | return(x); |
| 1125 | return(y); |
| 1126 | } |
| 1127 | |
| 1128 | static inline double MagickMin(const double x,const double y) |
| 1129 | { |
| 1130 | if (x < y) |
| 1131 | return(x); |
| 1132 | return(y); |
| 1133 | } |
| 1134 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1135 | static MagickRealType FxChannelStatistics(FxInfo *fx_info,const Image *image, |
| 1136 | ChannelType channel,const char *symbol,ExceptionInfo *exception) |
| 1137 | { |
| 1138 | char |
| 1139 | key[MaxTextExtent], |
| 1140 | statistic[MaxTextExtent]; |
| 1141 | |
| 1142 | const char |
| 1143 | *value; |
| 1144 | |
| 1145 | register const char |
| 1146 | *p; |
| 1147 | |
| 1148 | for (p=symbol; (*p != '.') && (*p != '\0'); p++) ; |
| 1149 | if (*p == '.') |
| 1150 | switch (*++p) /* e.g. depth.r */ |
| 1151 | { |
| 1152 | case 'r': channel=RedChannel; break; |
| 1153 | case 'g': channel=GreenChannel; break; |
| 1154 | case 'b': channel=BlueChannel; break; |
| 1155 | case 'c': channel=CyanChannel; break; |
| 1156 | case 'm': channel=MagentaChannel; break; |
| 1157 | case 'y': channel=YellowChannel; break; |
| 1158 | case 'k': channel=BlackChannel; break; |
| 1159 | default: break; |
| 1160 | } |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 1161 | (void) FormatMagickString(key,MaxTextExtent,"%p.%.20g.%s",(void *) image, |
| 1162 | (double) channel,symbol); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1163 | value=(const char *) GetValueFromSplayTree(fx_info->symbols,key); |
| 1164 | if (value != (const char *) NULL) |
cristy | f2f2727 | 2009-12-17 14:48:46 +0000 | [diff] [blame] | 1165 | return(QuantumScale*StringToDouble(value)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1166 | (void) DeleteNodeFromSplayTree(fx_info->symbols,key); |
| 1167 | if (LocaleNCompare(symbol,"depth",5) == 0) |
| 1168 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1169 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1170 | depth; |
| 1171 | |
| 1172 | depth=GetImageChannelDepth(image,channel,exception); |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 1173 | (void) FormatMagickString(statistic,MaxTextExtent,"%.20g",(double) |
| 1174 | depth); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1175 | } |
| 1176 | if (LocaleNCompare(symbol,"kurtosis",8) == 0) |
| 1177 | { |
| 1178 | double |
| 1179 | kurtosis, |
| 1180 | skewness; |
| 1181 | |
| 1182 | (void) GetImageChannelKurtosis(image,channel,&kurtosis,&skewness, |
| 1183 | exception); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 1184 | (void) FormatMagickString(statistic,MaxTextExtent,"%g",kurtosis); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1185 | } |
| 1186 | if (LocaleNCompare(symbol,"maxima",6) == 0) |
| 1187 | { |
| 1188 | double |
| 1189 | maxima, |
| 1190 | minima; |
| 1191 | |
| 1192 | (void) GetImageChannelRange(image,channel,&minima,&maxima,exception); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 1193 | (void) FormatMagickString(statistic,MaxTextExtent,"%g",maxima); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1194 | } |
| 1195 | if (LocaleNCompare(symbol,"mean",4) == 0) |
| 1196 | { |
| 1197 | double |
| 1198 | mean, |
| 1199 | standard_deviation; |
| 1200 | |
| 1201 | (void) GetImageChannelMean(image,channel,&mean,&standard_deviation, |
| 1202 | exception); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 1203 | (void) FormatMagickString(statistic,MaxTextExtent,"%g",mean); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1204 | } |
| 1205 | if (LocaleNCompare(symbol,"minima",6) == 0) |
| 1206 | { |
| 1207 | double |
| 1208 | maxima, |
| 1209 | minima; |
| 1210 | |
| 1211 | (void) GetImageChannelRange(image,channel,&minima,&maxima,exception); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 1212 | (void) FormatMagickString(statistic,MaxTextExtent,"%g",minima); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1213 | } |
| 1214 | if (LocaleNCompare(symbol,"skewness",8) == 0) |
| 1215 | { |
| 1216 | double |
| 1217 | kurtosis, |
| 1218 | skewness; |
| 1219 | |
| 1220 | (void) GetImageChannelKurtosis(image,channel,&kurtosis,&skewness, |
| 1221 | exception); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 1222 | (void) FormatMagickString(statistic,MaxTextExtent,"%g",skewness); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1223 | } |
| 1224 | if (LocaleNCompare(symbol,"standard_deviation",18) == 0) |
| 1225 | { |
| 1226 | double |
| 1227 | mean, |
| 1228 | standard_deviation; |
| 1229 | |
| 1230 | (void) GetImageChannelMean(image,channel,&mean,&standard_deviation, |
| 1231 | exception); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 1232 | (void) FormatMagickString(statistic,MaxTextExtent,"%g", |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1233 | standard_deviation); |
| 1234 | } |
| 1235 | (void) AddValueToSplayTree(fx_info->symbols,ConstantString(key), |
| 1236 | ConstantString(statistic)); |
cristy | f2f2727 | 2009-12-17 14:48:46 +0000 | [diff] [blame] | 1237 | return(QuantumScale*StringToDouble(statistic)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1238 | } |
| 1239 | |
| 1240 | static MagickRealType |
cristy | e85007d | 2010-06-06 22:51:36 +0000 | [diff] [blame] | 1241 | FxEvaluateSubexpression(FxInfo *,const ChannelType,const ssize_t, |
| 1242 | const ssize_t,const char *,MagickRealType *,ExceptionInfo *); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1243 | |
| 1244 | static inline MagickRealType FxMax(FxInfo *fx_info,const ChannelType channel, |
cristy | e85007d | 2010-06-06 22:51:36 +0000 | [diff] [blame] | 1245 | const ssize_t x,const ssize_t y,const char *expression, |
| 1246 | ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1247 | { |
| 1248 | MagickRealType |
| 1249 | alpha, |
| 1250 | beta; |
| 1251 | |
| 1252 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression,&beta,exception); |
| 1253 | return((MagickRealType) MagickMax((double) alpha,(double) beta)); |
| 1254 | } |
| 1255 | |
| 1256 | static inline MagickRealType FxMin(FxInfo *fx_info,ChannelType channel, |
cristy | e85007d | 2010-06-06 22:51:36 +0000 | [diff] [blame] | 1257 | const ssize_t x,const ssize_t y,const char *expression, |
| 1258 | ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1259 | { |
| 1260 | MagickRealType |
| 1261 | alpha, |
| 1262 | beta; |
| 1263 | |
| 1264 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression,&beta,exception); |
| 1265 | return((MagickRealType) MagickMin((double) alpha,(double) beta)); |
| 1266 | } |
| 1267 | |
| 1268 | static inline const char *FxSubexpression(const char *expression, |
| 1269 | ExceptionInfo *exception) |
| 1270 | { |
| 1271 | const char |
| 1272 | *subexpression; |
| 1273 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1274 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1275 | level; |
| 1276 | |
| 1277 | level=0; |
| 1278 | subexpression=expression; |
| 1279 | while ((*subexpression != '\0') && |
| 1280 | ((level != 1) || (strchr(")",(int) *subexpression) == (char *) NULL))) |
| 1281 | { |
| 1282 | if (strchr("(",(int) *subexpression) != (char *) NULL) |
| 1283 | level++; |
| 1284 | else |
| 1285 | if (strchr(")",(int) *subexpression) != (char *) NULL) |
| 1286 | level--; |
| 1287 | subexpression++; |
| 1288 | } |
| 1289 | if (*subexpression == '\0') |
| 1290 | (void) ThrowMagickException(exception,GetMagickModule(),OptionError, |
| 1291 | "UnbalancedParenthesis","`%s'",expression); |
| 1292 | return(subexpression); |
| 1293 | } |
| 1294 | |
| 1295 | static MagickRealType FxGetSymbol(FxInfo *fx_info,const ChannelType channel, |
cristy | e85007d | 2010-06-06 22:51:36 +0000 | [diff] [blame] | 1296 | const ssize_t x,const ssize_t y,const char *expression, |
| 1297 | ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1298 | { |
| 1299 | char |
| 1300 | *q, |
| 1301 | subexpression[MaxTextExtent], |
| 1302 | symbol[MaxTextExtent]; |
| 1303 | |
| 1304 | const char |
| 1305 | *p, |
| 1306 | *value; |
| 1307 | |
| 1308 | Image |
| 1309 | *image; |
| 1310 | |
| 1311 | MagickPixelPacket |
| 1312 | pixel; |
| 1313 | |
| 1314 | MagickRealType |
| 1315 | alpha, |
| 1316 | beta; |
| 1317 | |
| 1318 | PointInfo |
| 1319 | point; |
| 1320 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1321 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1322 | i; |
| 1323 | |
| 1324 | size_t |
| 1325 | length; |
| 1326 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1327 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1328 | level; |
| 1329 | |
| 1330 | p=expression; |
| 1331 | i=GetImageIndexInList(fx_info->images); |
| 1332 | level=0; |
| 1333 | point.x=(double) x; |
| 1334 | point.y=(double) y; |
| 1335 | if (isalpha((int) *(p+1)) == 0) |
| 1336 | { |
| 1337 | if (strchr("suv",(int) *p) != (char *) NULL) |
| 1338 | { |
| 1339 | switch (*p) |
| 1340 | { |
| 1341 | case 's': |
| 1342 | default: |
| 1343 | { |
| 1344 | i=GetImageIndexInList(fx_info->images); |
| 1345 | break; |
| 1346 | } |
| 1347 | case 'u': i=0; break; |
| 1348 | case 'v': i=1; break; |
| 1349 | } |
| 1350 | p++; |
| 1351 | if (*p == '[') |
| 1352 | { |
| 1353 | level++; |
| 1354 | q=subexpression; |
| 1355 | for (p++; *p != '\0'; ) |
| 1356 | { |
| 1357 | if (*p == '[') |
| 1358 | level++; |
| 1359 | else |
| 1360 | if (*p == ']') |
| 1361 | { |
| 1362 | level--; |
| 1363 | if (level == 0) |
| 1364 | break; |
| 1365 | } |
| 1366 | *q++=(*p++); |
| 1367 | } |
| 1368 | *q='\0'; |
| 1369 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,subexpression, |
| 1370 | &beta,exception); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1371 | i=(ssize_t) (alpha+0.5); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1372 | p++; |
| 1373 | } |
| 1374 | if (*p == '.') |
| 1375 | p++; |
| 1376 | } |
| 1377 | if ((isalpha((int) *(p+1)) == 0) && (*p == 'p')) |
| 1378 | { |
| 1379 | p++; |
| 1380 | if (*p == '{') |
| 1381 | { |
| 1382 | level++; |
| 1383 | q=subexpression; |
| 1384 | for (p++; *p != '\0'; ) |
| 1385 | { |
| 1386 | if (*p == '{') |
| 1387 | level++; |
| 1388 | else |
| 1389 | if (*p == '}') |
| 1390 | { |
| 1391 | level--; |
| 1392 | if (level == 0) |
| 1393 | break; |
| 1394 | } |
| 1395 | *q++=(*p++); |
| 1396 | } |
| 1397 | *q='\0'; |
| 1398 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,subexpression, |
| 1399 | &beta,exception); |
| 1400 | point.x=alpha; |
| 1401 | point.y=beta; |
| 1402 | p++; |
| 1403 | } |
| 1404 | else |
| 1405 | if (*p == '[') |
| 1406 | { |
| 1407 | level++; |
| 1408 | q=subexpression; |
| 1409 | for (p++; *p != '\0'; ) |
| 1410 | { |
| 1411 | if (*p == '[') |
| 1412 | level++; |
| 1413 | else |
| 1414 | if (*p == ']') |
| 1415 | { |
| 1416 | level--; |
| 1417 | if (level == 0) |
| 1418 | break; |
| 1419 | } |
| 1420 | *q++=(*p++); |
| 1421 | } |
| 1422 | *q='\0'; |
| 1423 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,subexpression, |
| 1424 | &beta,exception); |
| 1425 | point.x+=alpha; |
| 1426 | point.y+=beta; |
| 1427 | p++; |
| 1428 | } |
| 1429 | if (*p == '.') |
| 1430 | p++; |
| 1431 | } |
| 1432 | } |
| 1433 | length=GetImageListLength(fx_info->images); |
| 1434 | while (i < 0) |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1435 | i+=(ssize_t) length; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1436 | i%=length; |
| 1437 | image=GetImageFromList(fx_info->images,i); |
| 1438 | if (image == (Image *) NULL) |
| 1439 | { |
| 1440 | (void) ThrowMagickException(exception,GetMagickModule(),OptionError, |
| 1441 | "NoSuchImage","`%s'",expression); |
| 1442 | return(0.0); |
| 1443 | } |
| 1444 | (void) ResamplePixelColor(fx_info->resample_filter[i],point.x,point.y,&pixel); |
| 1445 | if ((strlen(p) > 2) && |
| 1446 | (LocaleCompare(p,"intensity") != 0) && |
| 1447 | (LocaleCompare(p,"luminance") != 0) && |
| 1448 | (LocaleCompare(p,"hue") != 0) && |
| 1449 | (LocaleCompare(p,"saturation") != 0) && |
| 1450 | (LocaleCompare(p,"lightness") != 0)) |
| 1451 | { |
| 1452 | char |
| 1453 | name[MaxTextExtent]; |
| 1454 | |
| 1455 | (void) CopyMagickString(name,p,MaxTextExtent); |
| 1456 | for (q=name+(strlen(name)-1); q > name; q--) |
| 1457 | { |
| 1458 | if (*q == ')') |
| 1459 | break; |
| 1460 | if (*q == '.') |
| 1461 | { |
| 1462 | *q='\0'; |
| 1463 | break; |
| 1464 | } |
| 1465 | } |
| 1466 | if ((strlen(name) > 2) && |
| 1467 | (GetValueFromSplayTree(fx_info->symbols,name) == (const char *) NULL)) |
| 1468 | { |
| 1469 | MagickPixelPacket |
| 1470 | *color; |
| 1471 | |
| 1472 | color=(MagickPixelPacket *) GetValueFromSplayTree(fx_info->colors, |
| 1473 | name); |
| 1474 | if (color != (MagickPixelPacket *) NULL) |
| 1475 | { |
| 1476 | pixel=(*color); |
| 1477 | p+=strlen(name); |
| 1478 | } |
| 1479 | else |
| 1480 | if (QueryMagickColor(name,&pixel,fx_info->exception) != MagickFalse) |
| 1481 | { |
| 1482 | (void) AddValueToSplayTree(fx_info->colors,ConstantString(name), |
| 1483 | CloneMagickPixelPacket(&pixel)); |
| 1484 | p+=strlen(name); |
| 1485 | } |
| 1486 | } |
| 1487 | } |
| 1488 | (void) CopyMagickString(symbol,p,MaxTextExtent); |
| 1489 | StripString(symbol); |
| 1490 | if (*symbol == '\0') |
| 1491 | { |
| 1492 | switch (channel) |
| 1493 | { |
| 1494 | case RedChannel: return(QuantumScale*pixel.red); |
| 1495 | case GreenChannel: return(QuantumScale*pixel.green); |
| 1496 | case BlueChannel: return(QuantumScale*pixel.blue); |
| 1497 | case OpacityChannel: |
| 1498 | { |
| 1499 | if (pixel.matte == MagickFalse) |
| 1500 | { |
| 1501 | fx_info->matte=MagickFalse; |
| 1502 | return(1.0); |
| 1503 | } |
cristy | 46f0820 | 2010-01-10 04:04:21 +0000 | [diff] [blame] | 1504 | return((MagickRealType) (QuantumScale*GetAlphaPixelComponent(&pixel))); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1505 | } |
| 1506 | case IndexChannel: |
| 1507 | { |
| 1508 | if (image->colorspace != CMYKColorspace) |
| 1509 | { |
| 1510 | (void) ThrowMagickException(exception,GetMagickModule(), |
| 1511 | OptionError,"ColorSeparatedImageRequired","`%s'", |
| 1512 | image->filename); |
| 1513 | return(0.0); |
| 1514 | } |
| 1515 | return(QuantumScale*pixel.index); |
| 1516 | } |
| 1517 | default: |
| 1518 | break; |
| 1519 | } |
| 1520 | (void) ThrowMagickException(exception,GetMagickModule(),OptionError, |
| 1521 | "UnableToParseExpression","`%s'",p); |
| 1522 | return(0.0); |
| 1523 | } |
| 1524 | switch (*symbol) |
| 1525 | { |
| 1526 | case 'A': |
| 1527 | case 'a': |
| 1528 | { |
| 1529 | if (LocaleCompare(symbol,"a") == 0) |
cristy | 46f0820 | 2010-01-10 04:04:21 +0000 | [diff] [blame] | 1530 | return((MagickRealType) (QuantumScale*GetAlphaPixelComponent(&pixel))); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1531 | break; |
| 1532 | } |
| 1533 | case 'B': |
| 1534 | case 'b': |
| 1535 | { |
| 1536 | if (LocaleCompare(symbol,"b") == 0) |
| 1537 | return(QuantumScale*pixel.blue); |
| 1538 | break; |
| 1539 | } |
| 1540 | case 'C': |
| 1541 | case 'c': |
| 1542 | { |
| 1543 | if (LocaleNCompare(symbol,"channel",7) == 0) |
| 1544 | { |
| 1545 | GeometryInfo |
| 1546 | channel_info; |
| 1547 | |
| 1548 | MagickStatusType |
| 1549 | flags; |
| 1550 | |
| 1551 | flags=ParseGeometry(symbol+7,&channel_info); |
| 1552 | if (image->colorspace == CMYKColorspace) |
| 1553 | switch (channel) |
| 1554 | { |
| 1555 | case CyanChannel: |
| 1556 | { |
| 1557 | if ((flags & RhoValue) == 0) |
| 1558 | return(0.0); |
| 1559 | return(channel_info.rho); |
| 1560 | } |
| 1561 | case MagentaChannel: |
| 1562 | { |
| 1563 | if ((flags & SigmaValue) == 0) |
| 1564 | return(0.0); |
| 1565 | return(channel_info.sigma); |
| 1566 | } |
| 1567 | case YellowChannel: |
| 1568 | { |
| 1569 | if ((flags & XiValue) == 0) |
| 1570 | return(0.0); |
| 1571 | return(channel_info.xi); |
| 1572 | } |
| 1573 | case BlackChannel: |
| 1574 | { |
| 1575 | if ((flags & PsiValue) == 0) |
| 1576 | return(0.0); |
| 1577 | return(channel_info.psi); |
| 1578 | } |
| 1579 | case OpacityChannel: |
| 1580 | { |
| 1581 | if ((flags & ChiValue) == 0) |
| 1582 | return(0.0); |
| 1583 | return(channel_info.chi); |
| 1584 | } |
| 1585 | default: |
| 1586 | return(0.0); |
| 1587 | } |
| 1588 | switch (channel) |
| 1589 | { |
| 1590 | case RedChannel: |
| 1591 | { |
| 1592 | if ((flags & RhoValue) == 0) |
| 1593 | return(0.0); |
| 1594 | return(channel_info.rho); |
| 1595 | } |
| 1596 | case GreenChannel: |
| 1597 | { |
| 1598 | if ((flags & SigmaValue) == 0) |
| 1599 | return(0.0); |
| 1600 | return(channel_info.sigma); |
| 1601 | } |
| 1602 | case BlueChannel: |
| 1603 | { |
| 1604 | if ((flags & XiValue) == 0) |
| 1605 | return(0.0); |
| 1606 | return(channel_info.xi); |
| 1607 | } |
| 1608 | case OpacityChannel: |
| 1609 | { |
| 1610 | if ((flags & PsiValue) == 0) |
| 1611 | return(0.0); |
| 1612 | return(channel_info.psi); |
| 1613 | } |
| 1614 | case IndexChannel: |
| 1615 | { |
| 1616 | if ((flags & ChiValue) == 0) |
| 1617 | return(0.0); |
| 1618 | return(channel_info.chi); |
| 1619 | } |
| 1620 | default: |
| 1621 | return(0.0); |
| 1622 | } |
| 1623 | return(0.0); |
| 1624 | } |
| 1625 | if (LocaleCompare(symbol,"c") == 0) |
| 1626 | return(QuantumScale*pixel.red); |
| 1627 | break; |
| 1628 | } |
| 1629 | case 'D': |
| 1630 | case 'd': |
| 1631 | { |
| 1632 | if (LocaleNCompare(symbol,"depth",5) == 0) |
| 1633 | return(FxChannelStatistics(fx_info,image,channel,symbol,exception)); |
| 1634 | break; |
| 1635 | } |
| 1636 | case 'G': |
| 1637 | case 'g': |
| 1638 | { |
| 1639 | if (LocaleCompare(symbol,"g") == 0) |
| 1640 | return(QuantumScale*pixel.green); |
| 1641 | break; |
| 1642 | } |
| 1643 | case 'K': |
| 1644 | case 'k': |
| 1645 | { |
| 1646 | if (LocaleNCompare(symbol,"kurtosis",8) == 0) |
| 1647 | return(FxChannelStatistics(fx_info,image,channel,symbol,exception)); |
| 1648 | if (LocaleCompare(symbol,"k") == 0) |
| 1649 | { |
| 1650 | if (image->colorspace != CMYKColorspace) |
| 1651 | { |
| 1652 | (void) ThrowMagickException(exception,GetMagickModule(), |
| 1653 | OptionError,"ColorSeparatedImageRequired","`%s'", |
| 1654 | image->filename); |
| 1655 | return(0.0); |
| 1656 | } |
| 1657 | return(QuantumScale*pixel.index); |
| 1658 | } |
| 1659 | break; |
| 1660 | } |
| 1661 | case 'H': |
| 1662 | case 'h': |
| 1663 | { |
| 1664 | if (LocaleCompare(symbol,"h") == 0) |
| 1665 | return((MagickRealType) image->rows); |
| 1666 | if (LocaleCompare(symbol,"hue") == 0) |
| 1667 | { |
| 1668 | double |
| 1669 | hue, |
| 1670 | lightness, |
| 1671 | saturation; |
| 1672 | |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1673 | ConvertRGBToHSL(ClampToQuantum(pixel.red),ClampToQuantum(pixel.green), |
| 1674 | ClampToQuantum(pixel.blue),&hue,&saturation,&lightness); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1675 | return(hue); |
| 1676 | } |
| 1677 | break; |
| 1678 | } |
| 1679 | case 'I': |
| 1680 | case 'i': |
| 1681 | { |
| 1682 | if ((LocaleCompare(symbol,"image.depth") == 0) || |
| 1683 | (LocaleCompare(symbol,"image.minima") == 0) || |
| 1684 | (LocaleCompare(symbol,"image.maxima") == 0) || |
| 1685 | (LocaleCompare(symbol,"image.mean") == 0) || |
| 1686 | (LocaleCompare(symbol,"image.kurtosis") == 0) || |
| 1687 | (LocaleCompare(symbol,"image.skewness") == 0) || |
| 1688 | (LocaleCompare(symbol,"image.standard_deviation") == 0)) |
| 1689 | return(FxChannelStatistics(fx_info,image,channel,symbol+6,exception)); |
| 1690 | if (LocaleCompare(symbol,"image.resolution.x") == 0) |
| 1691 | return(image->x_resolution); |
| 1692 | if (LocaleCompare(symbol,"image.resolution.y") == 0) |
| 1693 | return(image->y_resolution); |
| 1694 | if (LocaleCompare(symbol,"intensity") == 0) |
| 1695 | return(QuantumScale*MagickPixelIntensityToQuantum(&pixel)); |
| 1696 | if (LocaleCompare(symbol,"i") == 0) |
| 1697 | return((MagickRealType) x); |
| 1698 | break; |
| 1699 | } |
| 1700 | case 'J': |
| 1701 | case 'j': |
| 1702 | { |
| 1703 | if (LocaleCompare(symbol,"j") == 0) |
| 1704 | return((MagickRealType) y); |
| 1705 | break; |
| 1706 | } |
| 1707 | case 'L': |
| 1708 | case 'l': |
| 1709 | { |
| 1710 | if (LocaleCompare(symbol,"lightness") == 0) |
| 1711 | { |
| 1712 | double |
| 1713 | hue, |
| 1714 | lightness, |
| 1715 | saturation; |
| 1716 | |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1717 | ConvertRGBToHSL(ClampToQuantum(pixel.red),ClampToQuantum(pixel.green), |
| 1718 | ClampToQuantum(pixel.blue),&hue,&saturation,&lightness); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1719 | return(lightness); |
| 1720 | } |
| 1721 | if (LocaleCompare(symbol,"luminance") == 0) |
| 1722 | { |
| 1723 | double |
| 1724 | luminence; |
| 1725 | |
| 1726 | luminence=0.2126*pixel.red+0.7152*pixel.green+0.0722*pixel.blue; |
| 1727 | return(QuantumScale*luminence); |
| 1728 | } |
| 1729 | break; |
| 1730 | } |
| 1731 | case 'M': |
| 1732 | case 'm': |
| 1733 | { |
| 1734 | if (LocaleNCompare(symbol,"maxima",6) == 0) |
| 1735 | return(FxChannelStatistics(fx_info,image,channel,symbol,exception)); |
| 1736 | if (LocaleNCompare(symbol,"mean",4) == 0) |
| 1737 | return(FxChannelStatistics(fx_info,image,channel,symbol,exception)); |
| 1738 | if (LocaleNCompare(symbol,"minima",6) == 0) |
| 1739 | return(FxChannelStatistics(fx_info,image,channel,symbol,exception)); |
| 1740 | if (LocaleCompare(symbol,"m") == 0) |
| 1741 | return(QuantumScale*pixel.blue); |
| 1742 | break; |
| 1743 | } |
| 1744 | case 'N': |
| 1745 | case 'n': |
| 1746 | { |
| 1747 | if (LocaleCompare(symbol,"n") == 0) |
| 1748 | return((MagickRealType) GetImageListLength(fx_info->images)); |
| 1749 | break; |
| 1750 | } |
| 1751 | case 'O': |
| 1752 | case 'o': |
| 1753 | { |
| 1754 | if (LocaleCompare(symbol,"o") == 0) |
| 1755 | return(QuantumScale*pixel.opacity); |
| 1756 | break; |
| 1757 | } |
| 1758 | case 'P': |
| 1759 | case 'p': |
| 1760 | { |
| 1761 | if (LocaleCompare(symbol,"page.height") == 0) |
| 1762 | return((MagickRealType) image->page.height); |
| 1763 | if (LocaleCompare(symbol,"page.width") == 0) |
| 1764 | return((MagickRealType) image->page.width); |
| 1765 | if (LocaleCompare(symbol,"page.x") == 0) |
| 1766 | return((MagickRealType) image->page.x); |
| 1767 | if (LocaleCompare(symbol,"page.y") == 0) |
| 1768 | return((MagickRealType) image->page.y); |
| 1769 | break; |
| 1770 | } |
| 1771 | case 'R': |
| 1772 | case 'r': |
| 1773 | { |
| 1774 | if (LocaleCompare(symbol,"resolution.x") == 0) |
| 1775 | return(image->x_resolution); |
| 1776 | if (LocaleCompare(symbol,"resolution.y") == 0) |
| 1777 | return(image->y_resolution); |
| 1778 | if (LocaleCompare(symbol,"r") == 0) |
| 1779 | return(QuantumScale*pixel.red); |
| 1780 | break; |
| 1781 | } |
| 1782 | case 'S': |
| 1783 | case 's': |
| 1784 | { |
| 1785 | if (LocaleCompare(symbol,"saturation") == 0) |
| 1786 | { |
| 1787 | double |
| 1788 | hue, |
| 1789 | lightness, |
| 1790 | saturation; |
| 1791 | |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 1792 | ConvertRGBToHSL(ClampToQuantum(pixel.red),ClampToQuantum(pixel.green), |
| 1793 | ClampToQuantum(pixel.blue),&hue,&saturation,&lightness); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1794 | return(saturation); |
| 1795 | } |
| 1796 | if (LocaleNCompare(symbol,"skewness",8) == 0) |
| 1797 | return(FxChannelStatistics(fx_info,image,channel,symbol,exception)); |
| 1798 | if (LocaleNCompare(symbol,"standard_deviation",18) == 0) |
| 1799 | return(FxChannelStatistics(fx_info,image,channel,symbol,exception)); |
| 1800 | break; |
| 1801 | } |
| 1802 | case 'T': |
| 1803 | case 't': |
| 1804 | { |
| 1805 | if (LocaleCompare(symbol,"t") == 0) |
| 1806 | return((MagickRealType) fx_info->images->scene); |
| 1807 | break; |
| 1808 | } |
| 1809 | case 'W': |
| 1810 | case 'w': |
| 1811 | { |
| 1812 | if (LocaleCompare(symbol,"w") == 0) |
| 1813 | return((MagickRealType) image->columns); |
| 1814 | break; |
| 1815 | } |
| 1816 | case 'Y': |
| 1817 | case 'y': |
| 1818 | { |
| 1819 | if (LocaleCompare(symbol,"y") == 0) |
| 1820 | return(QuantumScale*pixel.green); |
| 1821 | break; |
| 1822 | } |
| 1823 | case 'Z': |
| 1824 | case 'z': |
| 1825 | { |
| 1826 | if (LocaleCompare(symbol,"z") == 0) |
| 1827 | { |
| 1828 | MagickRealType |
| 1829 | depth; |
| 1830 | |
| 1831 | depth=(MagickRealType) GetImageChannelDepth(image,channel, |
| 1832 | fx_info->exception); |
| 1833 | return(depth); |
| 1834 | } |
| 1835 | break; |
| 1836 | } |
| 1837 | default: |
| 1838 | break; |
| 1839 | } |
| 1840 | value=(const char *) GetValueFromSplayTree(fx_info->symbols,symbol); |
| 1841 | if (value != (const char *) NULL) |
cristy | f2f2727 | 2009-12-17 14:48:46 +0000 | [diff] [blame] | 1842 | return((MagickRealType) StringToDouble(value)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1843 | (void) ThrowMagickException(exception,GetMagickModule(),OptionError, |
| 1844 | "UnableToParseExpression","`%s'",symbol); |
| 1845 | return(0.0); |
| 1846 | } |
| 1847 | |
| 1848 | static const char *FxOperatorPrecedence(const char *expression, |
| 1849 | ExceptionInfo *exception) |
| 1850 | { |
| 1851 | typedef enum |
| 1852 | { |
| 1853 | UndefinedPrecedence, |
| 1854 | NullPrecedence, |
| 1855 | BitwiseComplementPrecedence, |
| 1856 | ExponentPrecedence, |
cristy | 116af16 | 2010-08-13 01:25:47 +0000 | [diff] [blame] | 1857 | ExponentialNotationPrecedence, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1858 | MultiplyPrecedence, |
| 1859 | AdditionPrecedence, |
| 1860 | ShiftPrecedence, |
| 1861 | RelationalPrecedence, |
| 1862 | EquivalencyPrecedence, |
| 1863 | BitwiseAndPrecedence, |
| 1864 | BitwiseOrPrecedence, |
| 1865 | LogicalAndPrecedence, |
| 1866 | LogicalOrPrecedence, |
| 1867 | TernaryPrecedence, |
| 1868 | AssignmentPrecedence, |
| 1869 | CommaPrecedence, |
| 1870 | SeparatorPrecedence |
| 1871 | } FxPrecedence; |
| 1872 | |
| 1873 | FxPrecedence |
| 1874 | precedence, |
| 1875 | target; |
| 1876 | |
| 1877 | register const char |
| 1878 | *subexpression; |
| 1879 | |
| 1880 | register int |
| 1881 | c; |
| 1882 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 1883 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1884 | level; |
| 1885 | |
| 1886 | c=0; |
| 1887 | level=0; |
| 1888 | subexpression=(const char *) NULL; |
| 1889 | target=NullPrecedence; |
| 1890 | while (*expression != '\0') |
| 1891 | { |
| 1892 | precedence=UndefinedPrecedence; |
| 1893 | if ((isspace((int) ((char) *expression)) != 0) || (c == (int) '@')) |
| 1894 | { |
| 1895 | expression++; |
| 1896 | continue; |
| 1897 | } |
cristy | 488fa88 | 2010-03-01 22:34:24 +0000 | [diff] [blame] | 1898 | switch (*expression) |
| 1899 | { |
| 1900 | case 'A': |
| 1901 | case 'a': |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1902 | { |
cristy | 488fa88 | 2010-03-01 22:34:24 +0000 | [diff] [blame] | 1903 | if (LocaleNCompare(expression,"atan2",5) == 0) |
| 1904 | { |
| 1905 | expression+=5; |
| 1906 | break; |
| 1907 | } |
| 1908 | break; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1909 | } |
cristy | 488fa88 | 2010-03-01 22:34:24 +0000 | [diff] [blame] | 1910 | case 'J': |
| 1911 | case 'j': |
| 1912 | { |
| 1913 | if ((LocaleNCompare(expression,"j0",2) == 0) || |
| 1914 | (LocaleNCompare(expression,"j1",2) == 0)) |
| 1915 | { |
| 1916 | expression+=2; |
| 1917 | break; |
| 1918 | } |
| 1919 | break; |
| 1920 | } |
cristy | 2def932 | 2010-06-18 23:59:37 +0000 | [diff] [blame] | 1921 | case '#': |
| 1922 | { |
| 1923 | while (isxdigit((int) ((unsigned char) *(expression+1))) != 0) |
| 1924 | expression++; |
| 1925 | break; |
| 1926 | } |
cristy | 488fa88 | 2010-03-01 22:34:24 +0000 | [diff] [blame] | 1927 | default: |
| 1928 | break; |
| 1929 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1930 | if ((c == (int) '{') || (c == (int) '[')) |
| 1931 | level++; |
| 1932 | else |
| 1933 | if ((c == (int) '}') || (c == (int) ']')) |
| 1934 | level--; |
| 1935 | if (level == 0) |
| 1936 | switch ((unsigned char) *expression) |
| 1937 | { |
| 1938 | case '~': |
| 1939 | case '!': |
| 1940 | { |
| 1941 | precedence=BitwiseComplementPrecedence; |
| 1942 | break; |
| 1943 | } |
| 1944 | case '^': |
cristy | 6621e25 | 2010-08-13 00:42:57 +0000 | [diff] [blame] | 1945 | case '@': |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 1946 | { |
| 1947 | precedence=ExponentPrecedence; |
| 1948 | break; |
| 1949 | } |
| 1950 | default: |
| 1951 | { |
| 1952 | if (((c != 0) && ((isdigit((int) ((char) c)) != 0) || |
| 1953 | (strchr(")",c) != (char *) NULL))) && |
| 1954 | (((islower((int) ((char) *expression)) != 0) || |
| 1955 | (strchr("(",(int) *expression) != (char *) NULL)) || |
| 1956 | ((isdigit((int) ((char) c)) == 0) && |
| 1957 | (isdigit((int) ((char) *expression)) != 0))) && |
| 1958 | (strchr("xy",(int) *expression) == (char *) NULL)) |
| 1959 | precedence=MultiplyPrecedence; |
| 1960 | break; |
| 1961 | } |
| 1962 | case '*': |
| 1963 | case '/': |
| 1964 | case '%': |
| 1965 | { |
| 1966 | precedence=MultiplyPrecedence; |
| 1967 | break; |
| 1968 | } |
| 1969 | case '+': |
| 1970 | case '-': |
| 1971 | { |
| 1972 | if ((strchr("(+-/*%:&^|<>~,",c) == (char *) NULL) || |
| 1973 | (isalpha(c) != 0)) |
| 1974 | precedence=AdditionPrecedence; |
| 1975 | break; |
| 1976 | } |
| 1977 | case LeftShiftOperator: |
| 1978 | case RightShiftOperator: |
| 1979 | { |
| 1980 | precedence=ShiftPrecedence; |
| 1981 | break; |
| 1982 | } |
| 1983 | case '<': |
| 1984 | case LessThanEqualOperator: |
| 1985 | case GreaterThanEqualOperator: |
| 1986 | case '>': |
| 1987 | { |
| 1988 | precedence=RelationalPrecedence; |
| 1989 | break; |
| 1990 | } |
| 1991 | case EqualOperator: |
| 1992 | case NotEqualOperator: |
| 1993 | { |
| 1994 | precedence=EquivalencyPrecedence; |
| 1995 | break; |
| 1996 | } |
| 1997 | case '&': |
| 1998 | { |
| 1999 | precedence=BitwiseAndPrecedence; |
| 2000 | break; |
| 2001 | } |
| 2002 | case '|': |
| 2003 | { |
| 2004 | precedence=BitwiseOrPrecedence; |
| 2005 | break; |
| 2006 | } |
| 2007 | case LogicalAndOperator: |
| 2008 | { |
| 2009 | precedence=LogicalAndPrecedence; |
| 2010 | break; |
| 2011 | } |
| 2012 | case LogicalOrOperator: |
| 2013 | { |
| 2014 | precedence=LogicalOrPrecedence; |
| 2015 | break; |
| 2016 | } |
cristy | 116af16 | 2010-08-13 01:25:47 +0000 | [diff] [blame] | 2017 | case ExponentialNotation: |
| 2018 | { |
| 2019 | precedence=ExponentialNotationPrecedence; |
| 2020 | break; |
| 2021 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2022 | case ':': |
| 2023 | case '?': |
| 2024 | { |
| 2025 | precedence=TernaryPrecedence; |
| 2026 | break; |
| 2027 | } |
| 2028 | case '=': |
| 2029 | { |
| 2030 | precedence=AssignmentPrecedence; |
| 2031 | break; |
| 2032 | } |
| 2033 | case ',': |
| 2034 | { |
| 2035 | precedence=CommaPrecedence; |
| 2036 | break; |
| 2037 | } |
| 2038 | case ';': |
| 2039 | { |
| 2040 | precedence=SeparatorPrecedence; |
| 2041 | break; |
| 2042 | } |
| 2043 | } |
| 2044 | if ((precedence == BitwiseComplementPrecedence) || |
| 2045 | (precedence == TernaryPrecedence) || |
| 2046 | (precedence == AssignmentPrecedence)) |
| 2047 | { |
| 2048 | if (precedence > target) |
| 2049 | { |
| 2050 | /* |
| 2051 | Right-to-left associativity. |
| 2052 | */ |
| 2053 | target=precedence; |
| 2054 | subexpression=expression; |
| 2055 | } |
| 2056 | } |
| 2057 | else |
| 2058 | if (precedence >= target) |
| 2059 | { |
| 2060 | /* |
| 2061 | Left-to-right associativity. |
| 2062 | */ |
| 2063 | target=precedence; |
| 2064 | subexpression=expression; |
| 2065 | } |
| 2066 | if (strchr("(",(int) *expression) != (char *) NULL) |
| 2067 | expression=FxSubexpression(expression,exception); |
| 2068 | c=(int) (*expression++); |
| 2069 | } |
| 2070 | return(subexpression); |
| 2071 | } |
| 2072 | |
| 2073 | static MagickRealType FxEvaluateSubexpression(FxInfo *fx_info, |
cristy | e85007d | 2010-06-06 22:51:36 +0000 | [diff] [blame] | 2074 | const ChannelType channel,const ssize_t x,const ssize_t y, |
| 2075 | const char *expression,MagickRealType *beta,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2076 | { |
| 2077 | char |
| 2078 | *q, |
| 2079 | subexpression[MaxTextExtent]; |
| 2080 | |
| 2081 | MagickRealType |
| 2082 | alpha, |
| 2083 | gamma; |
| 2084 | |
| 2085 | register const char |
| 2086 | *p; |
| 2087 | |
| 2088 | *beta=0.0; |
| 2089 | if (exception->severity != UndefinedException) |
| 2090 | return(0.0); |
| 2091 | while (isspace((int) *expression) != 0) |
| 2092 | expression++; |
| 2093 | if (*expression == '\0') |
| 2094 | { |
| 2095 | (void) ThrowMagickException(exception,GetMagickModule(),OptionError, |
| 2096 | "MissingExpression","`%s'",expression); |
| 2097 | return(0.0); |
| 2098 | } |
cristy | 66322f0 | 2010-05-17 11:40:48 +0000 | [diff] [blame] | 2099 | *subexpression='\0'; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2100 | p=FxOperatorPrecedence(expression,exception); |
| 2101 | if (p != (const char *) NULL) |
| 2102 | { |
| 2103 | (void) CopyMagickString(subexpression,expression,(size_t) |
| 2104 | (p-expression+1)); |
| 2105 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,subexpression,beta, |
| 2106 | exception); |
| 2107 | switch ((unsigned char) *p) |
| 2108 | { |
| 2109 | case '~': |
| 2110 | { |
| 2111 | *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,beta,exception); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2112 | *beta=(MagickRealType) (~(size_t) *beta); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2113 | return(*beta); |
| 2114 | } |
| 2115 | case '!': |
| 2116 | { |
| 2117 | *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,beta,exception); |
| 2118 | return(*beta == 0.0 ? 1.0 : 0.0); |
| 2119 | } |
| 2120 | case '^': |
| 2121 | { |
| 2122 | *beta=pow((double) alpha,(double) FxEvaluateSubexpression(fx_info, |
| 2123 | channel,x,y,++p,beta,exception)); |
| 2124 | return(*beta); |
| 2125 | } |
| 2126 | case '*': |
cristy | 116af16 | 2010-08-13 01:25:47 +0000 | [diff] [blame] | 2127 | case ExponentialNotation: |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2128 | { |
| 2129 | *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,beta,exception); |
| 2130 | return(alpha*(*beta)); |
| 2131 | } |
| 2132 | case '/': |
| 2133 | { |
| 2134 | *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,beta,exception); |
| 2135 | if (*beta == 0.0) |
| 2136 | { |
| 2137 | if (exception->severity == UndefinedException) |
| 2138 | (void) ThrowMagickException(exception,GetMagickModule(), |
| 2139 | OptionError,"DivideByZero","`%s'",expression); |
| 2140 | return(0.0); |
| 2141 | } |
| 2142 | return(alpha/(*beta)); |
| 2143 | } |
| 2144 | case '%': |
| 2145 | { |
| 2146 | *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,beta,exception); |
| 2147 | *beta=fabs(floor(((double) *beta)+0.5)); |
| 2148 | if (*beta == 0.0) |
| 2149 | { |
| 2150 | (void) ThrowMagickException(exception,GetMagickModule(), |
| 2151 | OptionError,"DivideByZero","`%s'",expression); |
| 2152 | return(0.0); |
| 2153 | } |
| 2154 | return(fmod((double) alpha,(double) *beta)); |
| 2155 | } |
| 2156 | case '+': |
| 2157 | { |
| 2158 | *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,beta,exception); |
| 2159 | return(alpha+(*beta)); |
| 2160 | } |
| 2161 | case '-': |
| 2162 | { |
| 2163 | *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,beta,exception); |
| 2164 | return(alpha-(*beta)); |
| 2165 | } |
| 2166 | case LeftShiftOperator: |
| 2167 | { |
| 2168 | gamma=FxEvaluateSubexpression(fx_info,channel,x,y,++p,beta,exception); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2169 | *beta=(MagickRealType) ((size_t) (alpha+0.5) << (size_t) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2170 | (gamma+0.5)); |
| 2171 | return(*beta); |
| 2172 | } |
| 2173 | case RightShiftOperator: |
| 2174 | { |
| 2175 | gamma=FxEvaluateSubexpression(fx_info,channel,x,y,++p,beta,exception); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2176 | *beta=(MagickRealType) ((size_t) (alpha+0.5) >> (size_t) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2177 | (gamma+0.5)); |
| 2178 | return(*beta); |
| 2179 | } |
| 2180 | case '<': |
| 2181 | { |
| 2182 | *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,beta,exception); |
| 2183 | return(alpha < *beta ? 1.0 : 0.0); |
| 2184 | } |
| 2185 | case LessThanEqualOperator: |
| 2186 | { |
| 2187 | *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,beta,exception); |
| 2188 | return(alpha <= *beta ? 1.0 : 0.0); |
| 2189 | } |
| 2190 | case '>': |
| 2191 | { |
| 2192 | *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,beta,exception); |
| 2193 | return(alpha > *beta ? 1.0 : 0.0); |
| 2194 | } |
| 2195 | case GreaterThanEqualOperator: |
| 2196 | { |
| 2197 | *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,beta,exception); |
| 2198 | return(alpha >= *beta ? 1.0 : 0.0); |
| 2199 | } |
| 2200 | case EqualOperator: |
| 2201 | { |
| 2202 | *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,beta,exception); |
| 2203 | return(fabs(alpha-(*beta)) <= MagickEpsilon ? 1.0 : 0.0); |
| 2204 | } |
| 2205 | case NotEqualOperator: |
| 2206 | { |
| 2207 | *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,beta,exception); |
| 2208 | return(fabs(alpha-(*beta)) > MagickEpsilon ? 1.0 : 0.0); |
| 2209 | } |
| 2210 | case '&': |
| 2211 | { |
| 2212 | gamma=FxEvaluateSubexpression(fx_info,channel,x,y,++p,beta,exception); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2213 | *beta=(MagickRealType) ((size_t) (alpha+0.5) & (size_t) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2214 | (gamma+0.5)); |
| 2215 | return(*beta); |
| 2216 | } |
| 2217 | case '|': |
| 2218 | { |
| 2219 | gamma=FxEvaluateSubexpression(fx_info,channel,x,y,++p,beta,exception); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2220 | *beta=(MagickRealType) ((size_t) (alpha+0.5) | (size_t) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2221 | (gamma+0.5)); |
| 2222 | return(*beta); |
| 2223 | } |
| 2224 | case LogicalAndOperator: |
| 2225 | { |
| 2226 | gamma=FxEvaluateSubexpression(fx_info,channel,x,y,++p,beta,exception); |
| 2227 | *beta=(alpha > 0.0) && (gamma > 0.0) ? 1.0 : 0.0; |
| 2228 | return(*beta); |
| 2229 | } |
| 2230 | case LogicalOrOperator: |
| 2231 | { |
| 2232 | gamma=FxEvaluateSubexpression(fx_info,channel,x,y,++p,beta,exception); |
| 2233 | *beta=(alpha > 0.0) || (gamma > 0.0) ? 1.0 : 0.0; |
| 2234 | return(*beta); |
| 2235 | } |
| 2236 | case '?': |
| 2237 | { |
| 2238 | MagickRealType |
| 2239 | gamma; |
| 2240 | |
| 2241 | (void) CopyMagickString(subexpression,++p,MaxTextExtent); |
| 2242 | q=subexpression; |
| 2243 | p=StringToken(":",&q); |
| 2244 | if (q == (char *) NULL) |
| 2245 | { |
| 2246 | (void) ThrowMagickException(exception,GetMagickModule(), |
| 2247 | OptionError,"UnableToParseExpression","`%s'",subexpression); |
| 2248 | return(0.0); |
| 2249 | } |
| 2250 | if (fabs((double) alpha) > MagickEpsilon) |
| 2251 | gamma=FxEvaluateSubexpression(fx_info,channel,x,y,p,beta,exception); |
| 2252 | else |
| 2253 | gamma=FxEvaluateSubexpression(fx_info,channel,x,y,q,beta,exception); |
| 2254 | return(gamma); |
| 2255 | } |
| 2256 | case '=': |
| 2257 | { |
| 2258 | char |
| 2259 | numeric[MaxTextExtent]; |
| 2260 | |
| 2261 | q=subexpression; |
| 2262 | while (isalpha((int) ((unsigned char) *q)) != 0) |
| 2263 | q++; |
| 2264 | if (*q != '\0') |
| 2265 | { |
| 2266 | (void) ThrowMagickException(exception,GetMagickModule(), |
| 2267 | OptionError,"UnableToParseExpression","`%s'",subexpression); |
| 2268 | return(0.0); |
| 2269 | } |
| 2270 | ClearMagickException(exception); |
| 2271 | *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,beta,exception); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 2272 | (void) FormatMagickString(numeric,MaxTextExtent,"%g",(double) |
cristy | 8cd5b31 | 2010-01-07 01:10:24 +0000 | [diff] [blame] | 2273 | *beta); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2274 | (void) DeleteNodeFromSplayTree(fx_info->symbols,subexpression); |
| 2275 | (void) AddValueToSplayTree(fx_info->symbols,ConstantString( |
| 2276 | subexpression),ConstantString(numeric)); |
| 2277 | return(*beta); |
| 2278 | } |
| 2279 | case ',': |
| 2280 | { |
| 2281 | *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,beta,exception); |
| 2282 | return(alpha); |
| 2283 | } |
| 2284 | case ';': |
| 2285 | { |
| 2286 | *beta=FxEvaluateSubexpression(fx_info,channel,x,y,++p,beta,exception); |
| 2287 | return(*beta); |
| 2288 | } |
| 2289 | default: |
| 2290 | { |
| 2291 | gamma=alpha*FxEvaluateSubexpression(fx_info,channel,x,y,p,beta, |
| 2292 | exception); |
| 2293 | return(gamma); |
| 2294 | } |
| 2295 | } |
| 2296 | } |
| 2297 | if (strchr("(",(int) *expression) != (char *) NULL) |
| 2298 | { |
| 2299 | (void) CopyMagickString(subexpression,expression+1,MaxTextExtent); |
| 2300 | subexpression[strlen(subexpression)-1]='\0'; |
| 2301 | gamma=FxEvaluateSubexpression(fx_info,channel,x,y,subexpression,beta, |
| 2302 | exception); |
| 2303 | return(gamma); |
| 2304 | } |
| 2305 | switch (*expression) |
| 2306 | { |
| 2307 | case '+': |
| 2308 | { |
| 2309 | gamma=FxEvaluateSubexpression(fx_info,channel,x,y,expression+1,beta, |
| 2310 | exception); |
| 2311 | return(1.0*gamma); |
| 2312 | } |
| 2313 | case '-': |
| 2314 | { |
| 2315 | gamma=FxEvaluateSubexpression(fx_info,channel,x,y,expression+1,beta, |
| 2316 | exception); |
| 2317 | return(-1.0*gamma); |
| 2318 | } |
| 2319 | case '~': |
| 2320 | { |
| 2321 | gamma=FxEvaluateSubexpression(fx_info,channel,x,y,expression+1,beta, |
| 2322 | exception); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2323 | return((MagickRealType) (~(size_t) (gamma+0.5))); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2324 | } |
| 2325 | case 'A': |
| 2326 | case 'a': |
| 2327 | { |
| 2328 | if (LocaleNCompare(expression,"abs",3) == 0) |
| 2329 | { |
| 2330 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3,beta, |
| 2331 | exception); |
| 2332 | return((MagickRealType) fabs((double) alpha)); |
| 2333 | } |
| 2334 | if (LocaleNCompare(expression,"acos",4) == 0) |
| 2335 | { |
| 2336 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+4,beta, |
| 2337 | exception); |
| 2338 | return((MagickRealType) acos((double) alpha)); |
| 2339 | } |
cristy | 43c22f4 | 2010-03-30 12:34:07 +0000 | [diff] [blame] | 2340 | #if defined(MAGICKCORE_HAVE_J1) |
cristy | ee56cf1 | 2010-03-01 22:17:06 +0000 | [diff] [blame] | 2341 | if (LocaleNCompare(expression,"airy",4) == 0) |
| 2342 | { |
| 2343 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+4,beta, |
| 2344 | exception); |
| 2345 | if (alpha == 0.0) |
cristy | 2dd0322 | 2010-03-30 22:12:11 +0000 | [diff] [blame] | 2346 | return(1.0); |
| 2347 | gamma=2.0*j1((double) (MagickPI*alpha))/(MagickPI*alpha); |
cristy | 43c22f4 | 2010-03-30 12:34:07 +0000 | [diff] [blame] | 2348 | return(gamma*gamma); |
cristy | ee56cf1 | 2010-03-01 22:17:06 +0000 | [diff] [blame] | 2349 | } |
cristy | 43c22f4 | 2010-03-30 12:34:07 +0000 | [diff] [blame] | 2350 | #endif |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2351 | if (LocaleNCompare(expression,"asin",4) == 0) |
| 2352 | { |
| 2353 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+4,beta, |
| 2354 | exception); |
| 2355 | return((MagickRealType) asin((double) alpha)); |
| 2356 | } |
| 2357 | if (LocaleNCompare(expression,"alt",3) == 0) |
| 2358 | { |
| 2359 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3,beta, |
| 2360 | exception); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2361 | return(((ssize_t) alpha) & 0x01 ? -1.0 : 1.0); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2362 | } |
| 2363 | if (LocaleNCompare(expression,"atan2",5) == 0) |
| 2364 | { |
| 2365 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+5,beta, |
| 2366 | exception); |
| 2367 | return((MagickRealType) atan2((double) alpha,(double) *beta)); |
| 2368 | } |
| 2369 | if (LocaleNCompare(expression,"atan",4) == 0) |
| 2370 | { |
| 2371 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+4,beta, |
| 2372 | exception); |
| 2373 | return((MagickRealType) atan((double) alpha)); |
| 2374 | } |
| 2375 | if (LocaleCompare(expression,"a") == 0) |
| 2376 | return(FxGetSymbol(fx_info,channel,x,y,expression,exception)); |
| 2377 | break; |
| 2378 | } |
| 2379 | case 'B': |
| 2380 | case 'b': |
| 2381 | { |
| 2382 | if (LocaleCompare(expression,"b") == 0) |
| 2383 | return(FxGetSymbol(fx_info,channel,x,y,expression,exception)); |
| 2384 | break; |
| 2385 | } |
| 2386 | case 'C': |
| 2387 | case 'c': |
| 2388 | { |
| 2389 | if (LocaleNCompare(expression,"ceil",4) == 0) |
| 2390 | { |
| 2391 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+4,beta, |
| 2392 | exception); |
| 2393 | return((MagickRealType) ceil((double) alpha)); |
| 2394 | } |
| 2395 | if (LocaleNCompare(expression,"cosh",4) == 0) |
| 2396 | { |
| 2397 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+4,beta, |
| 2398 | exception); |
| 2399 | return((MagickRealType) cosh((double) alpha)); |
| 2400 | } |
| 2401 | if (LocaleNCompare(expression,"cos",3) == 0) |
| 2402 | { |
| 2403 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3,beta, |
| 2404 | exception); |
| 2405 | return((MagickRealType) cos((double) alpha)); |
| 2406 | } |
| 2407 | if (LocaleCompare(expression,"c") == 0) |
| 2408 | return(FxGetSymbol(fx_info,channel,x,y,expression,exception)); |
| 2409 | break; |
| 2410 | } |
| 2411 | case 'D': |
| 2412 | case 'd': |
| 2413 | { |
| 2414 | if (LocaleNCompare(expression,"debug",5) == 0) |
| 2415 | { |
| 2416 | const char |
| 2417 | *type; |
| 2418 | |
| 2419 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+5,beta, |
| 2420 | exception); |
| 2421 | if (fx_info->images->colorspace == CMYKColorspace) |
| 2422 | switch (channel) |
| 2423 | { |
| 2424 | case CyanChannel: type="cyan"; break; |
| 2425 | case MagentaChannel: type="magenta"; break; |
| 2426 | case YellowChannel: type="yellow"; break; |
| 2427 | case OpacityChannel: type="opacity"; break; |
| 2428 | case BlackChannel: type="black"; break; |
| 2429 | default: type="unknown"; break; |
| 2430 | } |
| 2431 | else |
| 2432 | switch (channel) |
| 2433 | { |
| 2434 | case RedChannel: type="red"; break; |
| 2435 | case GreenChannel: type="green"; break; |
| 2436 | case BlueChannel: type="blue"; break; |
| 2437 | case OpacityChannel: type="opacity"; break; |
| 2438 | default: type="unknown"; break; |
| 2439 | } |
| 2440 | (void) CopyMagickString(subexpression,expression+6,MaxTextExtent); |
| 2441 | if (strlen(subexpression) > 1) |
| 2442 | subexpression[strlen(subexpression)-1]='\0'; |
| 2443 | if (fx_info->file != (FILE *) NULL) |
cristy | e8c25f9 | 2010-06-03 00:53:06 +0000 | [diff] [blame] | 2444 | (void) fprintf(fx_info->file,"%s[%.20g,%.20g].%s: %s=%.*g\n", |
| 2445 | fx_info->images->filename,(double) x,(double) y,type, |
| 2446 | subexpression,GetMagickPrecision(),(double) alpha); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2447 | return(0.0); |
| 2448 | } |
| 2449 | break; |
| 2450 | } |
| 2451 | case 'E': |
| 2452 | case 'e': |
| 2453 | { |
| 2454 | if (LocaleCompare(expression,"epsilon") == 0) |
| 2455 | return((MagickRealType) MagickEpsilon); |
| 2456 | if (LocaleNCompare(expression,"exp",3) == 0) |
| 2457 | { |
| 2458 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3,beta, |
| 2459 | exception); |
| 2460 | return((MagickRealType) exp((double) alpha)); |
| 2461 | } |
| 2462 | if (LocaleCompare(expression,"e") == 0) |
| 2463 | return((MagickRealType) 2.7182818284590452354); |
| 2464 | break; |
| 2465 | } |
| 2466 | case 'F': |
| 2467 | case 'f': |
| 2468 | { |
| 2469 | if (LocaleNCompare(expression,"floor",5) == 0) |
| 2470 | { |
| 2471 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+5,beta, |
| 2472 | exception); |
| 2473 | return((MagickRealType) floor((double) alpha)); |
| 2474 | } |
| 2475 | break; |
| 2476 | } |
| 2477 | case 'G': |
| 2478 | case 'g': |
| 2479 | { |
| 2480 | if (LocaleCompare(expression,"g") == 0) |
| 2481 | return(FxGetSymbol(fx_info,channel,x,y,expression,exception)); |
| 2482 | break; |
| 2483 | } |
| 2484 | case 'H': |
| 2485 | case 'h': |
| 2486 | { |
| 2487 | if (LocaleCompare(expression,"h") == 0) |
| 2488 | return(FxGetSymbol(fx_info,channel,x,y,expression,exception)); |
| 2489 | if (LocaleCompare(expression,"hue") == 0) |
| 2490 | return(FxGetSymbol(fx_info,channel,x,y,expression,exception)); |
| 2491 | if (LocaleNCompare(expression,"hypot",5) == 0) |
| 2492 | { |
| 2493 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+5,beta, |
| 2494 | exception); |
| 2495 | return((MagickRealType) hypot((double) alpha,(double) *beta)); |
| 2496 | } |
| 2497 | break; |
| 2498 | } |
| 2499 | case 'K': |
| 2500 | case 'k': |
| 2501 | { |
| 2502 | if (LocaleCompare(expression,"k") == 0) |
| 2503 | return(FxGetSymbol(fx_info,channel,x,y,expression,exception)); |
| 2504 | break; |
| 2505 | } |
| 2506 | case 'I': |
| 2507 | case 'i': |
| 2508 | { |
| 2509 | if (LocaleCompare(expression,"intensity") == 0) |
| 2510 | return(FxGetSymbol(fx_info,channel,x,y,expression,exception)); |
| 2511 | if (LocaleNCompare(expression,"int",3) == 0) |
| 2512 | { |
| 2513 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3,beta, |
| 2514 | exception); |
cristy | 16788e4 | 2010-08-13 13:44:26 +0000 | [diff] [blame] | 2515 | return((MagickRealType) floor(alpha)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2516 | } |
| 2517 | if (LocaleCompare(expression,"i") == 0) |
| 2518 | return(FxGetSymbol(fx_info,channel,x,y,expression,exception)); |
| 2519 | break; |
| 2520 | } |
| 2521 | case 'J': |
| 2522 | case 'j': |
| 2523 | { |
| 2524 | if (LocaleCompare(expression,"j") == 0) |
| 2525 | return(FxGetSymbol(fx_info,channel,x,y,expression,exception)); |
cristy | 161b926 | 2010-03-20 19:34:32 +0000 | [diff] [blame] | 2526 | #if defined(MAGICKCORE_HAVE_J0) |
cristy | ee56cf1 | 2010-03-01 22:17:06 +0000 | [diff] [blame] | 2527 | if (LocaleNCompare(expression,"j0",2) == 0) |
| 2528 | { |
| 2529 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+2,beta, |
| 2530 | exception); |
| 2531 | return((MagickRealType) j0((double) alpha)); |
| 2532 | } |
cristy | 161b926 | 2010-03-20 19:34:32 +0000 | [diff] [blame] | 2533 | #endif |
| 2534 | #if defined(MAGICKCORE_HAVE_J1) |
cristy | ee56cf1 | 2010-03-01 22:17:06 +0000 | [diff] [blame] | 2535 | if (LocaleNCompare(expression,"j1",2) == 0) |
| 2536 | { |
| 2537 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+2,beta, |
| 2538 | exception); |
| 2539 | return((MagickRealType) j1((double) alpha)); |
| 2540 | } |
cristy | 161b926 | 2010-03-20 19:34:32 +0000 | [diff] [blame] | 2541 | #endif |
cristy | aa018fa | 2010-04-08 23:03:54 +0000 | [diff] [blame] | 2542 | #if defined(MAGICKCORE_HAVE_J1) |
cristy | a6a09e7 | 2010-03-02 14:51:02 +0000 | [diff] [blame] | 2543 | if (LocaleNCompare(expression,"jinc",4) == 0) |
| 2544 | { |
| 2545 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+4,beta, |
| 2546 | exception); |
cristy | 0946a82 | 2010-03-12 17:14:58 +0000 | [diff] [blame] | 2547 | if (alpha == 0.0) |
| 2548 | return(1.0); |
cristy | 69928f9 | 2010-03-12 13:27:09 +0000 | [diff] [blame] | 2549 | gamma=(MagickRealType) (2.0*j1((double) (MagickPI*alpha))/ |
cristy | fce2f7b | 2010-03-12 00:29:49 +0000 | [diff] [blame] | 2550 | (MagickPI*alpha)); |
| 2551 | return(gamma); |
cristy | a6a09e7 | 2010-03-02 14:51:02 +0000 | [diff] [blame] | 2552 | } |
cristy | aa018fa | 2010-04-08 23:03:54 +0000 | [diff] [blame] | 2553 | #endif |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2554 | break; |
| 2555 | } |
| 2556 | case 'L': |
| 2557 | case 'l': |
| 2558 | { |
| 2559 | if (LocaleNCompare(expression,"ln",2) == 0) |
| 2560 | { |
| 2561 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+2,beta, |
| 2562 | exception); |
| 2563 | return((MagickRealType) log((double) alpha)); |
| 2564 | } |
cristy | c8ed532 | 2010-08-31 12:07:59 +0000 | [diff] [blame] | 2565 | if (LocaleNCompare(expression,"logtwo",6) == 0) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2566 | { |
cristy | c8ed532 | 2010-08-31 12:07:59 +0000 | [diff] [blame] | 2567 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+6,beta, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2568 | exception); |
| 2569 | return((MagickRealType) log10((double) alpha))/log10(2.0); |
| 2570 | } |
| 2571 | if (LocaleNCompare(expression,"log",3) == 0) |
| 2572 | { |
| 2573 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3,beta, |
| 2574 | exception); |
| 2575 | return((MagickRealType) log10((double) alpha)); |
| 2576 | } |
| 2577 | if (LocaleCompare(expression,"lightness") == 0) |
| 2578 | return(FxGetSymbol(fx_info,channel,x,y,expression,exception)); |
| 2579 | break; |
| 2580 | } |
| 2581 | case 'M': |
| 2582 | case 'm': |
| 2583 | { |
| 2584 | if (LocaleCompare(expression,"MaxRGB") == 0) |
| 2585 | return((MagickRealType) QuantumRange); |
| 2586 | if (LocaleNCompare(expression,"maxima",6) == 0) |
| 2587 | break; |
| 2588 | if (LocaleNCompare(expression,"max",3) == 0) |
| 2589 | return(FxMax(fx_info,channel,x,y,expression+3,exception)); |
| 2590 | if (LocaleNCompare(expression,"minima",6) == 0) |
| 2591 | break; |
| 2592 | if (LocaleNCompare(expression,"min",3) == 0) |
| 2593 | return(FxMin(fx_info,channel,x,y,expression+3,exception)); |
| 2594 | if (LocaleNCompare(expression,"mod",3) == 0) |
| 2595 | { |
| 2596 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3,beta, |
| 2597 | exception); |
| 2598 | return((MagickRealType) fmod((double) alpha,(double) *beta)); |
| 2599 | } |
| 2600 | if (LocaleCompare(expression,"m") == 0) |
| 2601 | return(FxGetSymbol(fx_info,channel,x,y,expression,exception)); |
| 2602 | break; |
| 2603 | } |
| 2604 | case 'N': |
| 2605 | case 'n': |
| 2606 | { |
| 2607 | if (LocaleCompare(expression,"n") == 0) |
| 2608 | return(FxGetSymbol(fx_info,channel,x,y,expression,exception)); |
| 2609 | break; |
| 2610 | } |
| 2611 | case 'O': |
| 2612 | case 'o': |
| 2613 | { |
| 2614 | if (LocaleCompare(expression,"Opaque") == 0) |
| 2615 | return(1.0); |
| 2616 | if (LocaleCompare(expression,"o") == 0) |
| 2617 | return(FxGetSymbol(fx_info,channel,x,y,expression,exception)); |
| 2618 | break; |
| 2619 | } |
| 2620 | case 'P': |
| 2621 | case 'p': |
| 2622 | { |
| 2623 | if (LocaleCompare(expression,"pi") == 0) |
| 2624 | return((MagickRealType) MagickPI); |
| 2625 | if (LocaleNCompare(expression,"pow",3) == 0) |
| 2626 | { |
| 2627 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3,beta, |
| 2628 | exception); |
| 2629 | return((MagickRealType) pow((double) alpha,(double) *beta)); |
| 2630 | } |
| 2631 | if (LocaleCompare(expression,"p") == 0) |
| 2632 | return(FxGetSymbol(fx_info,channel,x,y,expression,exception)); |
| 2633 | break; |
| 2634 | } |
| 2635 | case 'Q': |
| 2636 | case 'q': |
| 2637 | { |
| 2638 | if (LocaleCompare(expression,"QuantumRange") == 0) |
| 2639 | return((MagickRealType) QuantumRange); |
| 2640 | if (LocaleCompare(expression,"QuantumScale") == 0) |
| 2641 | return((MagickRealType) QuantumScale); |
| 2642 | break; |
| 2643 | } |
| 2644 | case 'R': |
| 2645 | case 'r': |
| 2646 | { |
| 2647 | if (LocaleNCompare(expression,"rand",4) == 0) |
| 2648 | return((MagickRealType) GetPseudoRandomValue(fx_info->random_info)); |
| 2649 | if (LocaleNCompare(expression,"round",5) == 0) |
| 2650 | { |
| 2651 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+5,beta, |
| 2652 | exception); |
cristy | 16788e4 | 2010-08-13 13:44:26 +0000 | [diff] [blame] | 2653 | return((MagickRealType) floor((double) alpha+0.5)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2654 | } |
| 2655 | if (LocaleCompare(expression,"r") == 0) |
| 2656 | return(FxGetSymbol(fx_info,channel,x,y,expression,exception)); |
| 2657 | break; |
| 2658 | } |
| 2659 | case 'S': |
| 2660 | case 's': |
| 2661 | { |
| 2662 | if (LocaleCompare(expression,"saturation") == 0) |
| 2663 | return(FxGetSymbol(fx_info,channel,x,y,expression,exception)); |
| 2664 | if (LocaleNCompare(expression,"sign",4) == 0) |
| 2665 | { |
| 2666 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+4,beta, |
| 2667 | exception); |
| 2668 | return(alpha < 0.0 ? -1.0 : 1.0); |
| 2669 | } |
cristy | a6a09e7 | 2010-03-02 14:51:02 +0000 | [diff] [blame] | 2670 | if (LocaleNCompare(expression,"sinc",4) == 0) |
| 2671 | { |
| 2672 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+4,beta, |
| 2673 | exception); |
| 2674 | if (alpha == 0) |
| 2675 | return(1.0); |
| 2676 | gamma=(MagickRealType) (sin((double) (MagickPI*alpha))/ |
| 2677 | (MagickPI*alpha)); |
| 2678 | return(gamma); |
| 2679 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2680 | if (LocaleNCompare(expression,"sinh",4) == 0) |
| 2681 | { |
| 2682 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+4,beta, |
| 2683 | exception); |
| 2684 | return((MagickRealType) sinh((double) alpha)); |
| 2685 | } |
| 2686 | if (LocaleNCompare(expression,"sin",3) == 0) |
| 2687 | { |
| 2688 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3,beta, |
| 2689 | exception); |
| 2690 | return((MagickRealType) sin((double) alpha)); |
| 2691 | } |
| 2692 | if (LocaleNCompare(expression,"sqrt",4) == 0) |
| 2693 | { |
| 2694 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+4,beta, |
| 2695 | exception); |
| 2696 | return((MagickRealType) sqrt((double) alpha)); |
| 2697 | } |
| 2698 | if (LocaleCompare(expression,"s") == 0) |
| 2699 | return(FxGetSymbol(fx_info,channel,x,y,expression,exception)); |
| 2700 | break; |
| 2701 | } |
| 2702 | case 'T': |
| 2703 | case 't': |
| 2704 | { |
| 2705 | if (LocaleNCompare(expression,"tanh",4) == 0) |
| 2706 | { |
| 2707 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+4,beta, |
| 2708 | exception); |
| 2709 | return((MagickRealType) tanh((double) alpha)); |
| 2710 | } |
| 2711 | if (LocaleNCompare(expression,"tan",3) == 0) |
| 2712 | { |
| 2713 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+3,beta, |
| 2714 | exception); |
| 2715 | return((MagickRealType) tan((double) alpha)); |
| 2716 | } |
| 2717 | if (LocaleCompare(expression,"Transparent") == 0) |
| 2718 | return(0.0); |
cristy | 16788e4 | 2010-08-13 13:44:26 +0000 | [diff] [blame] | 2719 | if (LocaleNCompare(expression,"trunc",5) == 0) |
| 2720 | { |
| 2721 | alpha=FxEvaluateSubexpression(fx_info,channel,x,y,expression+5,beta, |
| 2722 | exception); |
| 2723 | if (alpha >= 0.0) |
| 2724 | return((MagickRealType) floor((double) alpha)); |
| 2725 | return((MagickRealType) ceil((double) alpha)); |
| 2726 | } |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2727 | if (LocaleCompare(expression,"t") == 0) |
| 2728 | return(FxGetSymbol(fx_info,channel,x,y,expression,exception)); |
| 2729 | break; |
| 2730 | } |
| 2731 | case 'U': |
| 2732 | case 'u': |
| 2733 | { |
| 2734 | if (LocaleCompare(expression,"u") == 0) |
| 2735 | return(FxGetSymbol(fx_info,channel,x,y,expression,exception)); |
| 2736 | break; |
| 2737 | } |
| 2738 | case 'V': |
| 2739 | case 'v': |
| 2740 | { |
| 2741 | if (LocaleCompare(expression,"v") == 0) |
| 2742 | return(FxGetSymbol(fx_info,channel,x,y,expression,exception)); |
| 2743 | break; |
| 2744 | } |
| 2745 | case 'W': |
| 2746 | case 'w': |
| 2747 | { |
| 2748 | if (LocaleCompare(expression,"w") == 0) |
| 2749 | return(FxGetSymbol(fx_info,channel,x,y,expression,exception)); |
| 2750 | break; |
| 2751 | } |
| 2752 | case 'Y': |
| 2753 | case 'y': |
| 2754 | { |
| 2755 | if (LocaleCompare(expression,"y") == 0) |
| 2756 | return(FxGetSymbol(fx_info,channel,x,y,expression,exception)); |
| 2757 | break; |
| 2758 | } |
| 2759 | case 'Z': |
| 2760 | case 'z': |
| 2761 | { |
| 2762 | if (LocaleCompare(expression,"z") == 0) |
| 2763 | return(FxGetSymbol(fx_info,channel,x,y,expression,exception)); |
| 2764 | break; |
| 2765 | } |
| 2766 | default: |
| 2767 | break; |
| 2768 | } |
| 2769 | q=(char *) expression; |
| 2770 | alpha=strtod(expression,&q); |
| 2771 | if (q == expression) |
| 2772 | return(FxGetSymbol(fx_info,channel,x,y,expression,exception)); |
| 2773 | return(alpha); |
| 2774 | } |
| 2775 | |
| 2776 | MagickExport MagickBooleanType FxEvaluateExpression(FxInfo *fx_info, |
| 2777 | MagickRealType *alpha,ExceptionInfo *exception) |
| 2778 | { |
| 2779 | MagickBooleanType |
| 2780 | status; |
| 2781 | |
| 2782 | status=FxEvaluateChannelExpression(fx_info,GrayChannel,0,0,alpha,exception); |
| 2783 | return(status); |
| 2784 | } |
| 2785 | |
| 2786 | MagickExport MagickBooleanType FxPreprocessExpression(FxInfo *fx_info, |
| 2787 | MagickRealType *alpha,ExceptionInfo *exception) |
| 2788 | { |
| 2789 | FILE |
| 2790 | *file; |
| 2791 | |
| 2792 | MagickBooleanType |
| 2793 | status; |
| 2794 | |
| 2795 | file=fx_info->file; |
| 2796 | fx_info->file=(FILE *) NULL; |
| 2797 | status=FxEvaluateChannelExpression(fx_info,GrayChannel,0,0,alpha,exception); |
| 2798 | fx_info->file=file; |
| 2799 | return(status); |
| 2800 | } |
| 2801 | |
| 2802 | MagickExport MagickBooleanType FxEvaluateChannelExpression(FxInfo *fx_info, |
cristy | e85007d | 2010-06-06 22:51:36 +0000 | [diff] [blame] | 2803 | const ChannelType channel,const ssize_t x,const ssize_t y, |
| 2804 | MagickRealType *alpha,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2805 | { |
| 2806 | MagickRealType |
| 2807 | beta; |
| 2808 | |
| 2809 | beta=0.0; |
| 2810 | *alpha=FxEvaluateSubexpression(fx_info,channel,x,y,fx_info->expression,&beta, |
| 2811 | exception); |
| 2812 | return(exception->severity == OptionError ? MagickFalse : MagickTrue); |
| 2813 | } |
| 2814 | |
| 2815 | /* |
| 2816 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 2817 | % % |
| 2818 | % % |
| 2819 | % % |
| 2820 | % F x I m a g e % |
| 2821 | % % |
| 2822 | % % |
| 2823 | % % |
| 2824 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 2825 | % |
| 2826 | % FxImage() applies a mathematical expression to the specified image. |
| 2827 | % |
| 2828 | % The format of the FxImage method is: |
| 2829 | % |
| 2830 | % Image *FxImage(const Image *image,const char *expression, |
| 2831 | % ExceptionInfo *exception) |
| 2832 | % Image *FxImageChannel(const Image *image,const ChannelType channel, |
| 2833 | % const char *expression,ExceptionInfo *exception) |
| 2834 | % |
| 2835 | % A description of each parameter follows: |
| 2836 | % |
| 2837 | % o image: the image. |
| 2838 | % |
| 2839 | % o channel: the channel. |
| 2840 | % |
| 2841 | % o expression: A mathematical expression. |
| 2842 | % |
| 2843 | % o exception: return any errors or warnings in this structure. |
| 2844 | % |
| 2845 | */ |
| 2846 | |
| 2847 | static FxInfo **DestroyFxThreadSet(FxInfo **fx_info) |
| 2848 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2849 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2850 | i; |
| 2851 | |
| 2852 | assert(fx_info != (FxInfo **) NULL); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2853 | for (i=0; i < (ssize_t) GetOpenMPMaximumThreads(); i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2854 | if (fx_info[i] != (FxInfo *) NULL) |
| 2855 | fx_info[i]=DestroyFxInfo(fx_info[i]); |
| 2856 | fx_info=(FxInfo **) RelinquishAlignedMemory(fx_info); |
| 2857 | return(fx_info); |
| 2858 | } |
| 2859 | |
| 2860 | static FxInfo **AcquireFxThreadSet(const Image *image,const char *expression, |
| 2861 | ExceptionInfo *exception) |
| 2862 | { |
| 2863 | char |
| 2864 | *fx_expression; |
| 2865 | |
| 2866 | FxInfo |
| 2867 | **fx_info; |
| 2868 | |
| 2869 | MagickRealType |
| 2870 | alpha; |
| 2871 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2872 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2873 | i; |
| 2874 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2875 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2876 | number_threads; |
| 2877 | |
| 2878 | number_threads=GetOpenMPMaximumThreads(); |
| 2879 | fx_info=(FxInfo **) AcquireAlignedMemory(number_threads,sizeof(*fx_info)); |
| 2880 | if (fx_info == (FxInfo **) NULL) |
| 2881 | return((FxInfo **) NULL); |
| 2882 | (void) ResetMagickMemory(fx_info,0,number_threads*sizeof(*fx_info)); |
| 2883 | if (*expression != '@') |
| 2884 | fx_expression=ConstantString(expression); |
| 2885 | else |
| 2886 | fx_expression=FileToString(expression+1,~0,exception); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2887 | for (i=0; i < (ssize_t) number_threads; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2888 | { |
| 2889 | fx_info[i]=AcquireFxInfo(image,fx_expression); |
| 2890 | if (fx_info[i] == (FxInfo *) NULL) |
| 2891 | return(DestroyFxThreadSet(fx_info)); |
| 2892 | (void) FxPreprocessExpression(fx_info[i],&alpha,fx_info[i]->exception); |
| 2893 | } |
| 2894 | fx_expression=DestroyString(fx_expression); |
| 2895 | return(fx_info); |
| 2896 | } |
| 2897 | |
| 2898 | MagickExport Image *FxImage(const Image *image,const char *expression, |
| 2899 | ExceptionInfo *exception) |
| 2900 | { |
| 2901 | Image |
| 2902 | *fx_image; |
| 2903 | |
| 2904 | fx_image=FxImageChannel(image,GrayChannel,expression,exception); |
| 2905 | return(fx_image); |
| 2906 | } |
| 2907 | |
| 2908 | MagickExport Image *FxImageChannel(const Image *image,const ChannelType channel, |
| 2909 | const char *expression,ExceptionInfo *exception) |
| 2910 | { |
| 2911 | #define FxImageTag "Fx/Image" |
| 2912 | |
cristy | fa11211 | 2010-01-04 17:48:07 +0000 | [diff] [blame] | 2913 | CacheView |
| 2914 | *fx_view; |
| 2915 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2916 | FxInfo |
cristy | fa11211 | 2010-01-04 17:48:07 +0000 | [diff] [blame] | 2917 | **restrict fx_info; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2918 | |
| 2919 | Image |
| 2920 | *fx_image; |
| 2921 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2922 | MagickBooleanType |
| 2923 | status; |
| 2924 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2925 | MagickOffsetType |
| 2926 | progress; |
| 2927 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2928 | MagickRealType |
| 2929 | alpha; |
| 2930 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2931 | ssize_t |
| 2932 | y; |
| 2933 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2934 | assert(image != (Image *) NULL); |
| 2935 | assert(image->signature == MagickSignature); |
| 2936 | if (image->debug != MagickFalse) |
| 2937 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 2938 | fx_image=CloneImage(image,0,0,MagickTrue,exception); |
| 2939 | if (fx_image == (Image *) NULL) |
| 2940 | return((Image *) NULL); |
| 2941 | if (SetImageStorageClass(fx_image,DirectClass) == MagickFalse) |
| 2942 | { |
| 2943 | InheritException(exception,&fx_image->exception); |
| 2944 | fx_image=DestroyImage(fx_image); |
| 2945 | return((Image *) NULL); |
| 2946 | } |
| 2947 | fx_info=AcquireFxThreadSet(image,expression,exception); |
| 2948 | if (fx_info == (FxInfo **) NULL) |
| 2949 | { |
| 2950 | fx_image=DestroyImage(fx_image); |
| 2951 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 2952 | } |
| 2953 | status=FxPreprocessExpression(fx_info[0],&alpha,exception); |
| 2954 | if (status == MagickFalse) |
| 2955 | { |
| 2956 | fx_image=DestroyImage(fx_image); |
| 2957 | fx_info=DestroyFxThreadSet(fx_info); |
| 2958 | return((Image *) NULL); |
| 2959 | } |
| 2960 | /* |
| 2961 | Fx image. |
| 2962 | */ |
| 2963 | status=MagickTrue; |
| 2964 | progress=0; |
| 2965 | fx_view=AcquireCacheView(fx_image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 2966 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 2967 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2968 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2969 | for (y=0; y < (ssize_t) fx_image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2970 | { |
cristy | 6ebe97c | 2010-07-03 01:17:28 +0000 | [diff] [blame] | 2971 | int |
| 2972 | id; |
| 2973 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2974 | MagickRealType |
| 2975 | alpha; |
| 2976 | |
| 2977 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 2978 | *restrict fx_indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2979 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2980 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2981 | x; |
| 2982 | |
| 2983 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 2984 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2985 | |
| 2986 | if (status == MagickFalse) |
| 2987 | continue; |
| 2988 | q=GetCacheViewAuthenticPixels(fx_view,0,y,fx_image->columns,1,exception); |
| 2989 | if (q == (PixelPacket *) NULL) |
| 2990 | { |
| 2991 | status=MagickFalse; |
| 2992 | continue; |
| 2993 | } |
| 2994 | fx_indexes=GetCacheViewAuthenticIndexQueue(fx_view); |
| 2995 | id=GetOpenMPThreadId(); |
| 2996 | alpha=0.0; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 2997 | for (x=0; x < (ssize_t) fx_image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 2998 | { |
| 2999 | if ((channel & RedChannel) != 0) |
| 3000 | { |
| 3001 | (void) FxEvaluateChannelExpression(fx_info[id],RedChannel,x,y, |
| 3002 | &alpha,exception); |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 3003 | q->red=ClampToQuantum((MagickRealType) QuantumRange*alpha); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3004 | } |
| 3005 | if ((channel & GreenChannel) != 0) |
| 3006 | { |
| 3007 | (void) FxEvaluateChannelExpression(fx_info[id],GreenChannel,x,y, |
| 3008 | &alpha,exception); |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 3009 | q->green=ClampToQuantum((MagickRealType) QuantumRange*alpha); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3010 | } |
| 3011 | if ((channel & BlueChannel) != 0) |
| 3012 | { |
| 3013 | (void) FxEvaluateChannelExpression(fx_info[id],BlueChannel,x,y, |
| 3014 | &alpha,exception); |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 3015 | q->blue=ClampToQuantum((MagickRealType) QuantumRange*alpha); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3016 | } |
| 3017 | if ((channel & OpacityChannel) != 0) |
| 3018 | { |
| 3019 | (void) FxEvaluateChannelExpression(fx_info[id],OpacityChannel,x,y, |
| 3020 | &alpha,exception); |
| 3021 | if (image->matte == MagickFalse) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 3022 | q->opacity=ClampToQuantum((MagickRealType) QuantumRange*alpha); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3023 | else |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 3024 | q->opacity=ClampToQuantum((MagickRealType) (QuantumRange- |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3025 | QuantumRange*alpha)); |
| 3026 | } |
| 3027 | if (((channel & IndexChannel) != 0) && |
| 3028 | (fx_image->colorspace == CMYKColorspace)) |
| 3029 | { |
| 3030 | (void) FxEvaluateChannelExpression(fx_info[id],IndexChannel,x,y, |
| 3031 | &alpha,exception); |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 3032 | fx_indexes[x]=(IndexPacket) ClampToQuantum((MagickRealType) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3033 | QuantumRange*alpha); |
| 3034 | } |
| 3035 | q++; |
| 3036 | } |
| 3037 | if (SyncCacheViewAuthenticPixels(fx_view,exception) == MagickFalse) |
| 3038 | status=MagickFalse; |
| 3039 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 3040 | { |
| 3041 | MagickBooleanType |
| 3042 | proceed; |
| 3043 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 3044 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3045 | #pragma omp critical (MagickCore_FxImageChannel) |
| 3046 | #endif |
| 3047 | proceed=SetImageProgress(image,FxImageTag,progress++,image->rows); |
| 3048 | if (proceed == MagickFalse) |
| 3049 | status=MagickFalse; |
| 3050 | } |
| 3051 | } |
| 3052 | fx_image->matte=fx_info[0]->matte; |
| 3053 | fx_view=DestroyCacheView(fx_view); |
| 3054 | fx_info=DestroyFxThreadSet(fx_info); |
| 3055 | if (status == MagickFalse) |
| 3056 | fx_image=DestroyImage(fx_image); |
| 3057 | return(fx_image); |
| 3058 | } |
| 3059 | |
| 3060 | /* |
| 3061 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3062 | % % |
| 3063 | % % |
| 3064 | % % |
| 3065 | % I m p l o d e I m a g e % |
| 3066 | % % |
| 3067 | % % |
| 3068 | % % |
| 3069 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3070 | % |
| 3071 | % ImplodeImage() creates a new image that is a copy of an existing |
| 3072 | % one with the image pixels "implode" by the specified percentage. It |
| 3073 | % allocates the memory necessary for the new Image structure and returns a |
| 3074 | % pointer to the new image. |
| 3075 | % |
| 3076 | % The format of the ImplodeImage method is: |
| 3077 | % |
| 3078 | % Image *ImplodeImage(const Image *image,const double amount, |
| 3079 | % ExceptionInfo *exception) |
| 3080 | % |
| 3081 | % A description of each parameter follows: |
| 3082 | % |
| 3083 | % o implode_image: Method ImplodeImage returns a pointer to the image |
| 3084 | % after it is implode. A null image is returned if there is a memory |
| 3085 | % shortage. |
| 3086 | % |
| 3087 | % o image: the image. |
| 3088 | % |
| 3089 | % o amount: Define the extent of the implosion. |
| 3090 | % |
| 3091 | % o exception: return any errors or warnings in this structure. |
| 3092 | % |
| 3093 | */ |
| 3094 | MagickExport Image *ImplodeImage(const Image *image,const double amount, |
| 3095 | ExceptionInfo *exception) |
| 3096 | { |
| 3097 | #define ImplodeImageTag "Implode/Image" |
| 3098 | |
cristy | fa11211 | 2010-01-04 17:48:07 +0000 | [diff] [blame] | 3099 | CacheView |
| 3100 | *image_view, |
| 3101 | *implode_view; |
| 3102 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3103 | Image |
| 3104 | *implode_image; |
| 3105 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3106 | MagickBooleanType |
| 3107 | status; |
| 3108 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3109 | MagickOffsetType |
| 3110 | progress; |
| 3111 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3112 | MagickPixelPacket |
| 3113 | zero; |
| 3114 | |
| 3115 | MagickRealType |
| 3116 | radius; |
| 3117 | |
| 3118 | PointInfo |
| 3119 | center, |
| 3120 | scale; |
| 3121 | |
| 3122 | ResampleFilter |
cristy | fa11211 | 2010-01-04 17:48:07 +0000 | [diff] [blame] | 3123 | **restrict resample_filter; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3124 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3125 | ssize_t |
| 3126 | y; |
| 3127 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3128 | /* |
| 3129 | Initialize implode image attributes. |
| 3130 | */ |
| 3131 | assert(image != (Image *) NULL); |
| 3132 | assert(image->signature == MagickSignature); |
| 3133 | if (image->debug != MagickFalse) |
| 3134 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 3135 | assert(exception != (ExceptionInfo *) NULL); |
| 3136 | assert(exception->signature == MagickSignature); |
| 3137 | implode_image=CloneImage(image,0,0,MagickTrue,exception); |
| 3138 | if (implode_image == (Image *) NULL) |
| 3139 | return((Image *) NULL); |
| 3140 | if (SetImageStorageClass(implode_image,DirectClass) == MagickFalse) |
| 3141 | { |
| 3142 | InheritException(exception,&implode_image->exception); |
| 3143 | implode_image=DestroyImage(implode_image); |
| 3144 | return((Image *) NULL); |
| 3145 | } |
| 3146 | if (implode_image->background_color.opacity != OpaqueOpacity) |
| 3147 | implode_image->matte=MagickTrue; |
| 3148 | /* |
| 3149 | Compute scaling factor. |
| 3150 | */ |
| 3151 | scale.x=1.0; |
| 3152 | scale.y=1.0; |
| 3153 | center.x=0.5*image->columns; |
| 3154 | center.y=0.5*image->rows; |
| 3155 | radius=center.x; |
| 3156 | if (image->columns > image->rows) |
| 3157 | scale.y=(double) image->columns/(double) image->rows; |
| 3158 | else |
| 3159 | if (image->columns < image->rows) |
| 3160 | { |
| 3161 | scale.x=(double) image->rows/(double) image->columns; |
| 3162 | radius=center.y; |
| 3163 | } |
| 3164 | /* |
| 3165 | Implode image. |
| 3166 | */ |
| 3167 | status=MagickTrue; |
| 3168 | progress=0; |
| 3169 | GetMagickPixelPacket(implode_image,&zero); |
cristy | b2a11ae | 2010-02-22 00:53:36 +0000 | [diff] [blame] | 3170 | resample_filter=AcquireResampleFilterThreadSet(image, |
| 3171 | UndefinedVirtualPixelMethod,MagickTrue,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3172 | image_view=AcquireCacheView(image); |
| 3173 | implode_view=AcquireCacheView(implode_image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 3174 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 3175 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3176 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3177 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3178 | { |
cristy | 6ebe97c | 2010-07-03 01:17:28 +0000 | [diff] [blame] | 3179 | int |
| 3180 | id; |
| 3181 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3182 | MagickPixelPacket |
| 3183 | pixel; |
| 3184 | |
| 3185 | MagickRealType |
| 3186 | distance; |
| 3187 | |
| 3188 | PointInfo |
| 3189 | delta; |
| 3190 | |
| 3191 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 3192 | *restrict implode_indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3193 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3194 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3195 | x; |
| 3196 | |
| 3197 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 3198 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3199 | |
| 3200 | if (status == MagickFalse) |
| 3201 | continue; |
| 3202 | q=GetCacheViewAuthenticPixels(implode_view,0,y,implode_image->columns,1, |
| 3203 | exception); |
| 3204 | if (q == (PixelPacket *) NULL) |
| 3205 | { |
| 3206 | status=MagickFalse; |
| 3207 | continue; |
| 3208 | } |
| 3209 | implode_indexes=GetCacheViewAuthenticIndexQueue(implode_view); |
| 3210 | delta.y=scale.y*(double) (y-center.y); |
| 3211 | pixel=zero; |
| 3212 | id=GetOpenMPThreadId(); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3213 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3214 | { |
| 3215 | /* |
| 3216 | Determine if the pixel is within an ellipse. |
| 3217 | */ |
| 3218 | delta.x=scale.x*(double) (x-center.x); |
| 3219 | distance=delta.x*delta.x+delta.y*delta.y; |
| 3220 | if (distance < (radius*radius)) |
| 3221 | { |
| 3222 | double |
| 3223 | factor; |
| 3224 | |
| 3225 | /* |
| 3226 | Implode the pixel. |
| 3227 | */ |
| 3228 | factor=1.0; |
| 3229 | if (distance > 0.0) |
| 3230 | factor=pow(sin((double) (MagickPI*sqrt((double) distance)/ |
| 3231 | radius/2)),-amount); |
| 3232 | (void) ResamplePixelColor(resample_filter[id],(double) |
| 3233 | (factor*delta.x/scale.x+center.x),(double) (factor*delta.y/ |
| 3234 | scale.y+center.y),&pixel); |
| 3235 | SetPixelPacket(implode_image,&pixel,q,implode_indexes+x); |
| 3236 | } |
| 3237 | q++; |
| 3238 | } |
| 3239 | if (SyncCacheViewAuthenticPixels(implode_view,exception) == MagickFalse) |
| 3240 | status=MagickFalse; |
| 3241 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 3242 | { |
| 3243 | MagickBooleanType |
| 3244 | proceed; |
| 3245 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 3246 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3247 | #pragma omp critical (MagickCore_ImplodeImage) |
| 3248 | #endif |
| 3249 | proceed=SetImageProgress(image,ImplodeImageTag,progress++,image->rows); |
| 3250 | if (proceed == MagickFalse) |
| 3251 | status=MagickFalse; |
| 3252 | } |
| 3253 | } |
| 3254 | implode_view=DestroyCacheView(implode_view); |
| 3255 | image_view=DestroyCacheView(image_view); |
| 3256 | resample_filter=DestroyResampleFilterThreadSet(resample_filter); |
| 3257 | if (status == MagickFalse) |
| 3258 | implode_image=DestroyImage(implode_image); |
| 3259 | return(implode_image); |
| 3260 | } |
| 3261 | |
| 3262 | /* |
| 3263 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3264 | % % |
| 3265 | % % |
| 3266 | % % |
| 3267 | % M o r p h I m a g e s % |
| 3268 | % % |
| 3269 | % % |
| 3270 | % % |
| 3271 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3272 | % |
| 3273 | % The MorphImages() method requires a minimum of two images. The first |
| 3274 | % image is transformed into the second by a number of intervening images |
| 3275 | % as specified by frames. |
| 3276 | % |
| 3277 | % The format of the MorphImage method is: |
| 3278 | % |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3279 | % Image *MorphImages(const Image *image,const size_t number_frames, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3280 | % ExceptionInfo *exception) |
| 3281 | % |
| 3282 | % A description of each parameter follows: |
| 3283 | % |
| 3284 | % o image: the image. |
| 3285 | % |
| 3286 | % o number_frames: Define the number of in-between image to generate. |
| 3287 | % The more in-between frames, the smoother the morph. |
| 3288 | % |
| 3289 | % o exception: return any errors or warnings in this structure. |
| 3290 | % |
| 3291 | */ |
| 3292 | MagickExport Image *MorphImages(const Image *image, |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3293 | const size_t number_frames,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3294 | { |
| 3295 | #define MorphImageTag "Morph/Image" |
| 3296 | |
| 3297 | Image |
| 3298 | *morph_image, |
| 3299 | *morph_images; |
| 3300 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3301 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3302 | y; |
| 3303 | |
| 3304 | MagickOffsetType |
| 3305 | scene; |
| 3306 | |
| 3307 | MagickRealType |
| 3308 | alpha, |
| 3309 | beta; |
| 3310 | |
| 3311 | register const Image |
| 3312 | *next; |
| 3313 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3314 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3315 | i; |
| 3316 | |
| 3317 | MagickBooleanType |
| 3318 | status; |
| 3319 | |
| 3320 | /* |
| 3321 | Clone first frame in sequence. |
| 3322 | */ |
| 3323 | assert(image != (Image *) NULL); |
| 3324 | assert(image->signature == MagickSignature); |
| 3325 | if (image->debug != MagickFalse) |
| 3326 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 3327 | assert(exception != (ExceptionInfo *) NULL); |
| 3328 | assert(exception->signature == MagickSignature); |
| 3329 | morph_images=CloneImage(image,0,0,MagickTrue,exception); |
| 3330 | if (morph_images == (Image *) NULL) |
| 3331 | return((Image *) NULL); |
| 3332 | if (GetNextImageInList(image) == (Image *) NULL) |
| 3333 | { |
| 3334 | /* |
| 3335 | Morph single image. |
| 3336 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3337 | for (i=1; i < (ssize_t) number_frames; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3338 | { |
| 3339 | morph_image=CloneImage(image,0,0,MagickTrue,exception); |
| 3340 | if (morph_image == (Image *) NULL) |
| 3341 | { |
| 3342 | morph_images=DestroyImageList(morph_images); |
| 3343 | return((Image *) NULL); |
| 3344 | } |
| 3345 | AppendImageToList(&morph_images,morph_image); |
cristy | 8b27a6d | 2010-02-14 03:31:15 +0000 | [diff] [blame] | 3346 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3347 | { |
cristy | 8b27a6d | 2010-02-14 03:31:15 +0000 | [diff] [blame] | 3348 | MagickBooleanType |
| 3349 | proceed; |
| 3350 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3351 | proceed=SetImageProgress(image,MorphImageTag,(MagickOffsetType) i, |
| 3352 | number_frames); |
cristy | 8b27a6d | 2010-02-14 03:31:15 +0000 | [diff] [blame] | 3353 | if (proceed == MagickFalse) |
| 3354 | status=MagickFalse; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3355 | } |
| 3356 | } |
| 3357 | return(GetFirstImageInList(morph_images)); |
| 3358 | } |
| 3359 | /* |
| 3360 | Morph image sequence. |
| 3361 | */ |
| 3362 | status=MagickTrue; |
| 3363 | scene=0; |
| 3364 | next=image; |
| 3365 | for ( ; GetNextImageInList(next) != (Image *) NULL; next=GetNextImageInList(next)) |
| 3366 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3367 | for (i=0; i < (ssize_t) number_frames; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3368 | { |
| 3369 | CacheView |
| 3370 | *image_view, |
| 3371 | *morph_view; |
| 3372 | |
| 3373 | beta=(MagickRealType) (i+1.0)/(MagickRealType) (number_frames+1.0); |
| 3374 | alpha=1.0-beta; |
cristy | 15b98cd | 2010-09-12 19:42:50 +0000 | [diff] [blame^] | 3375 | morph_image=ResizeImage(next,(size_t) (alpha*next->columns+beta* |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3376 | GetNextImageInList(next)->columns+0.5),(size_t) (alpha* |
cristy | 15b98cd | 2010-09-12 19:42:50 +0000 | [diff] [blame^] | 3377 | next->rows+beta*GetNextImageInList(next)->rows+0.5), |
| 3378 | next->filter,next->blur,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3379 | if (morph_image == (Image *) NULL) |
| 3380 | { |
| 3381 | morph_images=DestroyImageList(morph_images); |
| 3382 | return((Image *) NULL); |
| 3383 | } |
| 3384 | if (SetImageStorageClass(morph_image,DirectClass) == MagickFalse) |
| 3385 | { |
| 3386 | InheritException(exception,&morph_image->exception); |
| 3387 | morph_image=DestroyImage(morph_image); |
| 3388 | return((Image *) NULL); |
| 3389 | } |
| 3390 | AppendImageToList(&morph_images,morph_image); |
| 3391 | morph_images=GetLastImageInList(morph_images); |
cristy | 15b98cd | 2010-09-12 19:42:50 +0000 | [diff] [blame^] | 3392 | morph_image=ResizeImage(GetNextImageInList(next),morph_images->columns, |
| 3393 | morph_images->rows,GetNextImageInList(next)->filter, |
| 3394 | GetNextImageInList(next)->blur,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3395 | if (morph_image == (Image *) NULL) |
| 3396 | { |
| 3397 | morph_images=DestroyImageList(morph_images); |
| 3398 | return((Image *) NULL); |
| 3399 | } |
| 3400 | image_view=AcquireCacheView(morph_image); |
| 3401 | morph_view=AcquireCacheView(morph_images); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 3402 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 3403 | #pragma omp parallel for schedule(dynamic,4) shared(status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3404 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3405 | for (y=0; y < (ssize_t) morph_images->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3406 | { |
| 3407 | MagickBooleanType |
| 3408 | sync; |
| 3409 | |
| 3410 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 3411 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3412 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3413 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3414 | x; |
| 3415 | |
| 3416 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 3417 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3418 | |
| 3419 | if (status == MagickFalse) |
| 3420 | continue; |
| 3421 | p=GetCacheViewVirtualPixels(image_view,0,y,morph_image->columns,1, |
| 3422 | exception); |
| 3423 | q=GetCacheViewAuthenticPixels(morph_view,0,y,morph_images->columns,1, |
| 3424 | exception); |
| 3425 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 3426 | { |
| 3427 | status=MagickFalse; |
| 3428 | continue; |
| 3429 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3430 | for (x=0; x < (ssize_t) morph_images->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3431 | { |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 3432 | q->red=ClampToQuantum(alpha*q->red+beta*GetRedPixelComponent(p)); |
cristy | 46f0820 | 2010-01-10 04:04:21 +0000 | [diff] [blame] | 3433 | q->green=ClampToQuantum(alpha*q->green+beta* |
| 3434 | GetGreenPixelComponent(p)); |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 3435 | q->blue=ClampToQuantum(alpha*q->blue+beta*GetBluePixelComponent(p)); |
cristy | 46f0820 | 2010-01-10 04:04:21 +0000 | [diff] [blame] | 3436 | q->opacity=ClampToQuantum(alpha*q->opacity+beta* |
| 3437 | GetOpacityPixelComponent(p)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3438 | p++; |
| 3439 | q++; |
| 3440 | } |
| 3441 | sync=SyncCacheViewAuthenticPixels(morph_view,exception); |
| 3442 | if (sync == MagickFalse) |
| 3443 | status=MagickFalse; |
| 3444 | } |
| 3445 | morph_view=DestroyCacheView(morph_view); |
| 3446 | image_view=DestroyCacheView(image_view); |
| 3447 | morph_image=DestroyImage(morph_image); |
| 3448 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3449 | if (i < (ssize_t) number_frames) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3450 | break; |
| 3451 | /* |
| 3452 | Clone last frame in sequence. |
| 3453 | */ |
| 3454 | morph_image=CloneImage(GetNextImageInList(next),0,0,MagickTrue,exception); |
| 3455 | if (morph_image == (Image *) NULL) |
| 3456 | { |
| 3457 | morph_images=DestroyImageList(morph_images); |
| 3458 | return((Image *) NULL); |
| 3459 | } |
| 3460 | AppendImageToList(&morph_images,morph_image); |
| 3461 | morph_images=GetLastImageInList(morph_images); |
| 3462 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 3463 | { |
| 3464 | MagickBooleanType |
| 3465 | proceed; |
| 3466 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 3467 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3468 | #pragma omp critical (MagickCore_MorphImages) |
| 3469 | #endif |
| 3470 | proceed=SetImageProgress(image,MorphImageTag,scene, |
| 3471 | GetImageListLength(image)); |
| 3472 | if (proceed == MagickFalse) |
| 3473 | status=MagickFalse; |
| 3474 | } |
| 3475 | scene++; |
| 3476 | } |
| 3477 | if (GetNextImageInList(next) != (Image *) NULL) |
| 3478 | { |
| 3479 | morph_images=DestroyImageList(morph_images); |
| 3480 | return((Image *) NULL); |
| 3481 | } |
| 3482 | return(GetFirstImageInList(morph_images)); |
| 3483 | } |
| 3484 | |
| 3485 | /* |
| 3486 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3487 | % % |
| 3488 | % % |
| 3489 | % % |
| 3490 | % P l a s m a I m a g e % |
| 3491 | % % |
| 3492 | % % |
| 3493 | % % |
| 3494 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3495 | % |
| 3496 | % PlasmaImage() initializes an image with plasma fractal values. The image |
| 3497 | % must be initialized with a base color and the random number generator |
| 3498 | % seeded before this method is called. |
| 3499 | % |
| 3500 | % The format of the PlasmaImage method is: |
| 3501 | % |
| 3502 | % MagickBooleanType PlasmaImage(Image *image,const SegmentInfo *segment, |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3503 | % size_t attenuate,size_t depth) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3504 | % |
| 3505 | % A description of each parameter follows: |
| 3506 | % |
| 3507 | % o image: the image. |
| 3508 | % |
| 3509 | % o segment: Define the region to apply plasma fractals values. |
| 3510 | % |
| 3511 | % o attenuate: Define the plasmattenuation factor. |
| 3512 | % |
| 3513 | % o depth: Limit the plasma recursion depth. |
| 3514 | % |
| 3515 | */ |
| 3516 | |
| 3517 | static inline Quantum PlasmaPixel(RandomInfo *random_info, |
| 3518 | const MagickRealType pixel,const MagickRealType noise) |
| 3519 | { |
| 3520 | Quantum |
| 3521 | plasma; |
| 3522 | |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 3523 | plasma=ClampToQuantum(pixel+noise*GetPseudoRandomValue(random_info)- |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3524 | noise/2.0); |
| 3525 | return(plasma); |
| 3526 | } |
| 3527 | |
| 3528 | MagickExport MagickBooleanType PlasmaImageProxy(Image *image, |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3529 | RandomInfo *random_info,const SegmentInfo *segment,size_t attenuate, |
| 3530 | size_t depth) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3531 | { |
| 3532 | ExceptionInfo |
| 3533 | *exception; |
| 3534 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3535 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3536 | x, |
| 3537 | x_mid, |
| 3538 | y, |
| 3539 | y_mid; |
| 3540 | |
| 3541 | MagickRealType |
| 3542 | plasma; |
| 3543 | |
| 3544 | PixelPacket |
| 3545 | u, |
| 3546 | v; |
| 3547 | |
| 3548 | if (((segment->x2-segment->x1) == 0.0) && ((segment->y2-segment->y1) == 0.0)) |
| 3549 | return(MagickTrue); |
| 3550 | if (depth != 0) |
| 3551 | { |
| 3552 | SegmentInfo |
| 3553 | local_info; |
| 3554 | |
| 3555 | /* |
| 3556 | Divide the area into quadrants and recurse. |
| 3557 | */ |
| 3558 | depth--; |
| 3559 | attenuate++; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3560 | x_mid=(ssize_t) ceil((segment->x1+segment->x2)/2-0.5); |
| 3561 | y_mid=(ssize_t) ceil((segment->y1+segment->y2)/2-0.5); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3562 | local_info=(*segment); |
| 3563 | local_info.x2=(double) x_mid; |
| 3564 | local_info.y2=(double) y_mid; |
| 3565 | (void) PlasmaImageProxy(image,random_info,&local_info,attenuate,depth); |
| 3566 | local_info=(*segment); |
| 3567 | local_info.y1=(double) y_mid; |
| 3568 | local_info.x2=(double) x_mid; |
| 3569 | (void) PlasmaImageProxy(image,random_info,&local_info,attenuate,depth); |
| 3570 | local_info=(*segment); |
| 3571 | local_info.x1=(double) x_mid; |
| 3572 | local_info.y2=(double) y_mid; |
| 3573 | (void) PlasmaImageProxy(image,random_info,&local_info,attenuate,depth); |
| 3574 | local_info=(*segment); |
| 3575 | local_info.x1=(double) x_mid; |
| 3576 | local_info.y1=(double) y_mid; |
| 3577 | return(PlasmaImageProxy(image,random_info,&local_info,attenuate,depth)); |
| 3578 | } |
| 3579 | if (SetImageStorageClass(image,DirectClass) == MagickFalse) |
| 3580 | return(MagickFalse); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3581 | x_mid=(ssize_t) ceil((segment->x1+segment->x2)/2-0.5); |
| 3582 | y_mid=(ssize_t) ceil((segment->y1+segment->y2)/2-0.5); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3583 | if ((segment->x1 == (double) x_mid) && (segment->x2 == (double) x_mid) && |
| 3584 | (segment->y1 == (double) y_mid) && (segment->y2 == (double) y_mid)) |
| 3585 | return(MagickFalse); |
| 3586 | /* |
| 3587 | Average pixels and apply plasma. |
| 3588 | */ |
| 3589 | exception=(&image->exception); |
| 3590 | plasma=(MagickRealType) QuantumRange/(2.0*attenuate); |
| 3591 | if ((segment->x1 != (double) x_mid) || (segment->x2 != (double) x_mid)) |
| 3592 | { |
| 3593 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 3594 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3595 | |
| 3596 | /* |
| 3597 | Left pixel. |
| 3598 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3599 | x=(ssize_t) ceil(segment->x1-0.5); |
| 3600 | (void) GetOneVirtualPixel(image,x,(ssize_t) ceil(segment->y1-0.5),&u, |
cristy | 06609ee | 2010-03-17 20:21:27 +0000 | [diff] [blame] | 3601 | exception); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3602 | (void) GetOneVirtualPixel(image,x,(ssize_t) ceil(segment->y2-0.5),&v, |
cristy | 06609ee | 2010-03-17 20:21:27 +0000 | [diff] [blame] | 3603 | exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3604 | q=QueueAuthenticPixels(image,x,y_mid,1,1,exception); |
| 3605 | if (q == (PixelPacket *) NULL) |
| 3606 | return(MagickTrue); |
| 3607 | q->red=PlasmaPixel(random_info,(MagickRealType) (u.red+v.red)/2.0, |
| 3608 | plasma); |
| 3609 | q->green=PlasmaPixel(random_info,(MagickRealType) (u.green+v.green)/2.0, |
| 3610 | plasma); |
| 3611 | q->blue=PlasmaPixel(random_info,(MagickRealType) (u.blue+v.blue)/2.0, |
| 3612 | plasma); |
| 3613 | (void) SyncAuthenticPixels(image,exception); |
| 3614 | if (segment->x1 != segment->x2) |
| 3615 | { |
| 3616 | /* |
| 3617 | Right pixel. |
| 3618 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3619 | x=(ssize_t) ceil(segment->x2-0.5); |
| 3620 | (void) GetOneVirtualPixel(image,x,(ssize_t) ceil(segment->y1-0.5),&u, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3621 | exception); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3622 | (void) GetOneVirtualPixel(image,x,(ssize_t) ceil(segment->y2-0.5),&v, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3623 | exception); |
| 3624 | q=QueueAuthenticPixels(image,x,y_mid,1,1,exception); |
| 3625 | if (q == (PixelPacket *) NULL) |
| 3626 | return(MagickTrue); |
| 3627 | q->red=PlasmaPixel(random_info,(MagickRealType) (u.red+v.red)/2.0, |
| 3628 | plasma); |
| 3629 | q->green=PlasmaPixel(random_info,(MagickRealType) (u.green+v.green)/ |
| 3630 | 2.0,plasma); |
| 3631 | q->blue=PlasmaPixel(random_info,(MagickRealType) (u.blue+v.blue)/2.0, |
| 3632 | plasma); |
| 3633 | (void) SyncAuthenticPixels(image,exception); |
| 3634 | } |
| 3635 | } |
| 3636 | if ((segment->y1 != (double) y_mid) || (segment->y2 != (double) y_mid)) |
| 3637 | { |
| 3638 | if ((segment->x1 != (double) x_mid) || (segment->y2 != (double) y_mid)) |
| 3639 | { |
| 3640 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 3641 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3642 | |
| 3643 | /* |
| 3644 | Bottom pixel. |
| 3645 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3646 | y=(ssize_t) ceil(segment->y2-0.5); |
| 3647 | (void) GetOneVirtualPixel(image,(ssize_t) ceil(segment->x1-0.5),y,&u, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3648 | exception); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3649 | (void) GetOneVirtualPixel(image,(ssize_t) ceil(segment->x2-0.5),y,&v, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3650 | exception); |
| 3651 | q=QueueAuthenticPixels(image,x_mid,y,1,1,exception); |
| 3652 | if (q == (PixelPacket *) NULL) |
| 3653 | return(MagickTrue); |
| 3654 | q->red=PlasmaPixel(random_info,(MagickRealType) (u.red+v.red)/2.0, |
| 3655 | plasma); |
| 3656 | q->green=PlasmaPixel(random_info,(MagickRealType) (u.green+v.green)/ |
| 3657 | 2.0,plasma); |
| 3658 | q->blue=PlasmaPixel(random_info,(MagickRealType) (u.blue+v.blue)/2.0, |
| 3659 | plasma); |
| 3660 | (void) SyncAuthenticPixels(image,exception); |
| 3661 | } |
| 3662 | if (segment->y1 != segment->y2) |
| 3663 | { |
| 3664 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 3665 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3666 | |
| 3667 | /* |
| 3668 | Top pixel. |
| 3669 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3670 | y=(ssize_t) ceil(segment->y1-0.5); |
| 3671 | (void) GetOneVirtualPixel(image,(ssize_t) ceil(segment->x1-0.5),y,&u, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3672 | exception); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3673 | (void) GetOneVirtualPixel(image,(ssize_t) ceil(segment->x2-0.5),y,&v, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3674 | exception); |
| 3675 | q=QueueAuthenticPixels(image,x_mid,y,1,1,exception); |
| 3676 | if (q == (PixelPacket *) NULL) |
| 3677 | return(MagickTrue); |
| 3678 | q->red=PlasmaPixel(random_info,(MagickRealType) (u.red+v.red)/2.0, |
| 3679 | plasma); |
| 3680 | q->green=PlasmaPixel(random_info,(MagickRealType) (u.green+v.green)/ |
| 3681 | 2.0,plasma); |
| 3682 | q->blue=PlasmaPixel(random_info,(MagickRealType) (u.blue+v.blue)/2.0, |
| 3683 | plasma); |
| 3684 | (void) SyncAuthenticPixels(image,exception); |
| 3685 | } |
| 3686 | } |
| 3687 | if ((segment->x1 != segment->x2) || (segment->y1 != segment->y2)) |
| 3688 | { |
| 3689 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 3690 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3691 | |
| 3692 | /* |
| 3693 | Middle pixel. |
| 3694 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3695 | x=(ssize_t) ceil(segment->x1-0.5); |
| 3696 | y=(ssize_t) ceil(segment->y1-0.5); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3697 | (void) GetOneVirtualPixel(image,x,y,&u,exception); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3698 | x=(ssize_t) ceil(segment->x2-0.5); |
| 3699 | y=(ssize_t) ceil(segment->y2-0.5); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3700 | (void) GetOneVirtualPixel(image,x,y,&v,exception); |
| 3701 | q=QueueAuthenticPixels(image,x_mid,y_mid,1,1,exception); |
| 3702 | if (q == (PixelPacket *) NULL) |
| 3703 | return(MagickTrue); |
| 3704 | q->red=PlasmaPixel(random_info,(MagickRealType) (u.red+v.red)/2.0, |
| 3705 | plasma); |
| 3706 | q->green=PlasmaPixel(random_info,(MagickRealType) (u.green+v.green)/2.0, |
| 3707 | plasma); |
| 3708 | q->blue=PlasmaPixel(random_info,(MagickRealType) (u.blue+v.blue)/2.0, |
| 3709 | plasma); |
| 3710 | (void) SyncAuthenticPixels(image,exception); |
| 3711 | } |
| 3712 | if (((segment->x2-segment->x1) < 3.0) && ((segment->y2-segment->y1) < 3.0)) |
| 3713 | return(MagickTrue); |
| 3714 | return(MagickFalse); |
| 3715 | } |
| 3716 | |
| 3717 | MagickExport MagickBooleanType PlasmaImage(Image *image, |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3718 | const SegmentInfo *segment,size_t attenuate,size_t depth) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3719 | { |
| 3720 | MagickBooleanType |
| 3721 | status; |
| 3722 | |
| 3723 | RandomInfo |
| 3724 | *random_info; |
| 3725 | |
| 3726 | if (image->debug != MagickFalse) |
| 3727 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); |
| 3728 | assert(image != (Image *) NULL); |
| 3729 | assert(image->signature == MagickSignature); |
| 3730 | if (image->debug != MagickFalse) |
| 3731 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); |
| 3732 | random_info=AcquireRandomInfo(); |
| 3733 | status=PlasmaImageProxy(image,random_info,segment,attenuate,depth); |
| 3734 | random_info=DestroyRandomInfo(random_info); |
| 3735 | return(status); |
| 3736 | } |
| 3737 | |
| 3738 | /* |
| 3739 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3740 | % % |
| 3741 | % % |
| 3742 | % % |
| 3743 | % P o l a r o i d I m a g e % |
| 3744 | % % |
| 3745 | % % |
| 3746 | % % |
| 3747 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3748 | % |
| 3749 | % PolaroidImage() simulates a Polaroid picture. |
| 3750 | % |
| 3751 | % The format of the AnnotateImage method is: |
| 3752 | % |
| 3753 | % Image *PolaroidImage(const Image *image,const DrawInfo *draw_info, |
| 3754 | % const double angle,ExceptionInfo exception) |
| 3755 | % |
| 3756 | % A description of each parameter follows: |
| 3757 | % |
| 3758 | % o image: the image. |
| 3759 | % |
| 3760 | % o draw_info: the draw info. |
| 3761 | % |
cristy | cee9711 | 2010-05-28 00:44:52 +0000 | [diff] [blame] | 3762 | % o angle: Apply the effect along this angle. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3763 | % |
| 3764 | % o exception: return any errors or warnings in this structure. |
| 3765 | % |
| 3766 | */ |
| 3767 | MagickExport Image *PolaroidImage(const Image *image,const DrawInfo *draw_info, |
| 3768 | const double angle,ExceptionInfo *exception) |
| 3769 | { |
| 3770 | const char |
| 3771 | *value; |
| 3772 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3773 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3774 | quantum; |
| 3775 | |
| 3776 | Image |
| 3777 | *bend_image, |
| 3778 | *caption_image, |
| 3779 | *flop_image, |
| 3780 | *picture_image, |
| 3781 | *polaroid_image, |
| 3782 | *rotate_image, |
| 3783 | *trim_image; |
| 3784 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3785 | size_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3786 | height; |
| 3787 | |
| 3788 | /* |
| 3789 | Simulate a Polaroid picture. |
| 3790 | */ |
| 3791 | assert(image != (Image *) NULL); |
| 3792 | assert(image->signature == MagickSignature); |
| 3793 | if (image->debug != MagickFalse) |
| 3794 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 3795 | assert(exception != (ExceptionInfo *) NULL); |
| 3796 | assert(exception->signature == MagickSignature); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3797 | quantum=(ssize_t) MagickMax(MagickMax((double) image->columns,(double) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3798 | image->rows)/25.0,10.0); |
| 3799 | height=image->rows+2*quantum; |
| 3800 | caption_image=(Image *) NULL; |
| 3801 | value=GetImageProperty(image,"Caption"); |
| 3802 | if (value != (const char *) NULL) |
| 3803 | { |
| 3804 | char |
| 3805 | *caption, |
| 3806 | geometry[MaxTextExtent]; |
| 3807 | |
| 3808 | DrawInfo |
| 3809 | *annotate_info; |
| 3810 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3811 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3812 | count; |
| 3813 | |
| 3814 | MagickBooleanType |
| 3815 | status; |
| 3816 | |
| 3817 | TypeMetric |
| 3818 | metrics; |
| 3819 | |
| 3820 | /* |
| 3821 | Generate caption image. |
| 3822 | */ |
| 3823 | caption_image=CloneImage(image,image->columns,1,MagickTrue,exception); |
| 3824 | if (caption_image == (Image *) NULL) |
| 3825 | return((Image *) NULL); |
| 3826 | annotate_info=CloneDrawInfo((const ImageInfo *) NULL,draw_info); |
| 3827 | caption=InterpretImageProperties((ImageInfo *) NULL,(Image *) image, |
| 3828 | value); |
| 3829 | (void) CloneString(&annotate_info->text,caption); |
| 3830 | count=FormatMagickCaption(caption_image,annotate_info,&metrics,&caption); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3831 | status=SetImageExtent(caption_image,image->columns,(size_t) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3832 | ((count+1)*(metrics.ascent-metrics.descent)+0.5)); |
| 3833 | if (status == MagickFalse) |
| 3834 | caption_image=DestroyImage(caption_image); |
| 3835 | else |
| 3836 | { |
| 3837 | caption_image->background_color=image->border_color; |
| 3838 | (void) SetImageBackgroundColor(caption_image); |
| 3839 | (void) CloneString(&annotate_info->text,caption); |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 3840 | (void) FormatMagickString(geometry,MaxTextExtent,"+0+%g", |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3841 | metrics.ascent); |
| 3842 | if (annotate_info->gravity == UndefinedGravity) |
| 3843 | (void) CloneString(&annotate_info->geometry,AcquireString( |
| 3844 | geometry)); |
| 3845 | (void) AnnotateImage(caption_image,annotate_info); |
| 3846 | height+=caption_image->rows; |
| 3847 | } |
| 3848 | annotate_info=DestroyDrawInfo(annotate_info); |
| 3849 | caption=DestroyString(caption); |
| 3850 | } |
| 3851 | picture_image=CloneImage(image,image->columns+2*quantum,height,MagickTrue, |
| 3852 | exception); |
| 3853 | if (picture_image == (Image *) NULL) |
| 3854 | { |
| 3855 | if (caption_image != (Image *) NULL) |
| 3856 | caption_image=DestroyImage(caption_image); |
| 3857 | return((Image *) NULL); |
| 3858 | } |
| 3859 | picture_image->background_color=image->border_color; |
| 3860 | (void) SetImageBackgroundColor(picture_image); |
| 3861 | (void) CompositeImage(picture_image,OverCompositeOp,image,quantum,quantum); |
| 3862 | if (caption_image != (Image *) NULL) |
| 3863 | { |
| 3864 | (void) CompositeImage(picture_image,OverCompositeOp,caption_image, |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3865 | quantum,(ssize_t) (image->rows+3*quantum/2)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3866 | caption_image=DestroyImage(caption_image); |
| 3867 | } |
| 3868 | (void) QueryColorDatabase("none",&picture_image->background_color,exception); |
| 3869 | (void) SetImageAlphaChannel(picture_image,OpaqueAlphaChannel); |
| 3870 | rotate_image=RotateImage(picture_image,90.0,exception); |
| 3871 | picture_image=DestroyImage(picture_image); |
| 3872 | if (rotate_image == (Image *) NULL) |
| 3873 | return((Image *) NULL); |
| 3874 | picture_image=rotate_image; |
| 3875 | bend_image=WaveImage(picture_image,0.01*picture_image->rows,2.0* |
| 3876 | picture_image->columns,exception); |
| 3877 | picture_image=DestroyImage(picture_image); |
| 3878 | if (bend_image == (Image *) NULL) |
| 3879 | return((Image *) NULL); |
| 3880 | InheritException(&bend_image->exception,exception); |
| 3881 | picture_image=bend_image; |
| 3882 | rotate_image=RotateImage(picture_image,-90.0,exception); |
| 3883 | picture_image=DestroyImage(picture_image); |
| 3884 | if (rotate_image == (Image *) NULL) |
| 3885 | return((Image *) NULL); |
| 3886 | picture_image=rotate_image; |
| 3887 | picture_image->background_color=image->background_color; |
| 3888 | polaroid_image=ShadowImage(picture_image,80.0,2.0,quantum/3,quantum/3, |
| 3889 | exception); |
| 3890 | if (polaroid_image == (Image *) NULL) |
| 3891 | { |
| 3892 | picture_image=DestroyImage(picture_image); |
| 3893 | return(picture_image); |
| 3894 | } |
| 3895 | flop_image=FlopImage(polaroid_image,exception); |
| 3896 | polaroid_image=DestroyImage(polaroid_image); |
| 3897 | if (flop_image == (Image *) NULL) |
| 3898 | { |
| 3899 | picture_image=DestroyImage(picture_image); |
| 3900 | return(picture_image); |
| 3901 | } |
| 3902 | polaroid_image=flop_image; |
| 3903 | (void) CompositeImage(polaroid_image,OverCompositeOp,picture_image, |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3904 | (ssize_t) (-0.01*picture_image->columns/2.0),0L); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3905 | picture_image=DestroyImage(picture_image); |
| 3906 | (void) QueryColorDatabase("none",&polaroid_image->background_color,exception); |
| 3907 | rotate_image=RotateImage(polaroid_image,angle,exception); |
| 3908 | polaroid_image=DestroyImage(polaroid_image); |
| 3909 | if (rotate_image == (Image *) NULL) |
| 3910 | return((Image *) NULL); |
| 3911 | polaroid_image=rotate_image; |
| 3912 | trim_image=TrimImage(polaroid_image,exception); |
| 3913 | polaroid_image=DestroyImage(polaroid_image); |
| 3914 | if (trim_image == (Image *) NULL) |
| 3915 | return((Image *) NULL); |
| 3916 | polaroid_image=trim_image; |
| 3917 | return(polaroid_image); |
| 3918 | } |
| 3919 | |
| 3920 | /* |
| 3921 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3922 | % % |
| 3923 | % % |
| 3924 | % % |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3925 | % S e p i a T o n e I m a g e % |
| 3926 | % % |
| 3927 | % % |
| 3928 | % % |
| 3929 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 3930 | % |
| 3931 | % MagickSepiaToneImage() applies a special effect to the image, similar to the |
| 3932 | % effect achieved in a photo darkroom by sepia toning. Threshold ranges from |
| 3933 | % 0 to QuantumRange and is a measure of the extent of the sepia toning. A |
| 3934 | % threshold of 80% is a good starting point for a reasonable tone. |
| 3935 | % |
| 3936 | % The format of the SepiaToneImage method is: |
| 3937 | % |
| 3938 | % Image *SepiaToneImage(const Image *image,const double threshold, |
| 3939 | % ExceptionInfo *exception) |
| 3940 | % |
| 3941 | % A description of each parameter follows: |
| 3942 | % |
| 3943 | % o image: the image. |
| 3944 | % |
| 3945 | % o threshold: the tone threshold. |
| 3946 | % |
| 3947 | % o exception: return any errors or warnings in this structure. |
| 3948 | % |
| 3949 | */ |
| 3950 | MagickExport Image *SepiaToneImage(const Image *image,const double threshold, |
| 3951 | ExceptionInfo *exception) |
| 3952 | { |
| 3953 | #define SepiaToneImageTag "SepiaTone/Image" |
| 3954 | |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 3955 | CacheView |
| 3956 | *image_view, |
| 3957 | *sepia_view; |
| 3958 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3959 | Image |
| 3960 | *sepia_image; |
| 3961 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3962 | MagickBooleanType |
| 3963 | status; |
| 3964 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3965 | MagickOffsetType |
| 3966 | progress; |
| 3967 | |
| 3968 | ssize_t |
| 3969 | y; |
| 3970 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3971 | /* |
| 3972 | Initialize sepia-toned image attributes. |
| 3973 | */ |
| 3974 | assert(image != (const Image *) NULL); |
| 3975 | assert(image->signature == MagickSignature); |
| 3976 | if (image->debug != MagickFalse) |
| 3977 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 3978 | assert(exception != (ExceptionInfo *) NULL); |
| 3979 | assert(exception->signature == MagickSignature); |
| 3980 | sepia_image=CloneImage(image,image->columns,image->rows,MagickTrue,exception); |
| 3981 | if (sepia_image == (Image *) NULL) |
| 3982 | return((Image *) NULL); |
| 3983 | if (SetImageStorageClass(sepia_image,DirectClass) == MagickFalse) |
| 3984 | { |
| 3985 | InheritException(exception,&sepia_image->exception); |
| 3986 | sepia_image=DestroyImage(sepia_image); |
| 3987 | return((Image *) NULL); |
| 3988 | } |
| 3989 | /* |
| 3990 | Tone each row of the image. |
| 3991 | */ |
| 3992 | status=MagickTrue; |
| 3993 | progress=0; |
| 3994 | image_view=AcquireCacheView(image); |
| 3995 | sepia_view=AcquireCacheView(sepia_image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 3996 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 3997 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 3998 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 3999 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4000 | { |
| 4001 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 4002 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4003 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4004 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4005 | x; |
| 4006 | |
| 4007 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 4008 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4009 | |
| 4010 | if (status == MagickFalse) |
| 4011 | continue; |
| 4012 | p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception); |
| 4013 | q=QueueCacheViewAuthenticPixels(sepia_view,0,y,sepia_image->columns,1, |
| 4014 | exception); |
| 4015 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 4016 | { |
| 4017 | status=MagickFalse; |
| 4018 | continue; |
| 4019 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4020 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4021 | { |
| 4022 | MagickRealType |
| 4023 | intensity, |
| 4024 | tone; |
| 4025 | |
| 4026 | intensity=(MagickRealType) PixelIntensityToQuantum(p); |
| 4027 | tone=intensity > threshold ? (MagickRealType) QuantumRange : intensity+ |
| 4028 | (MagickRealType) QuantumRange-threshold; |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 4029 | q->red=ClampToQuantum(tone); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4030 | tone=intensity > (7.0*threshold/6.0) ? (MagickRealType) QuantumRange : |
| 4031 | intensity+(MagickRealType) QuantumRange-7.0*threshold/6.0; |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 4032 | q->green=ClampToQuantum(tone); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4033 | tone=intensity < (threshold/6.0) ? 0 : intensity-threshold/6.0; |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 4034 | q->blue=ClampToQuantum(tone); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4035 | tone=threshold/7.0; |
| 4036 | if ((MagickRealType) q->green < tone) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 4037 | q->green=ClampToQuantum(tone); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4038 | if ((MagickRealType) q->blue < tone) |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 4039 | q->blue=ClampToQuantum(tone); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4040 | p++; |
| 4041 | q++; |
| 4042 | } |
| 4043 | if (SyncCacheViewAuthenticPixels(sepia_view,exception) == MagickFalse) |
| 4044 | status=MagickFalse; |
| 4045 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 4046 | { |
| 4047 | MagickBooleanType |
| 4048 | proceed; |
| 4049 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 4050 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4051 | #pragma omp critical (MagickCore_SepiaToneImage) |
| 4052 | #endif |
| 4053 | proceed=SetImageProgress(image,SepiaToneImageTag,progress++, |
| 4054 | image->rows); |
| 4055 | if (proceed == MagickFalse) |
| 4056 | status=MagickFalse; |
| 4057 | } |
| 4058 | } |
| 4059 | sepia_view=DestroyCacheView(sepia_view); |
| 4060 | image_view=DestroyCacheView(image_view); |
| 4061 | (void) NormalizeImage(sepia_image); |
| 4062 | (void) ContrastImage(sepia_image,MagickTrue); |
| 4063 | if (status == MagickFalse) |
| 4064 | sepia_image=DestroyImage(sepia_image); |
| 4065 | return(sepia_image); |
| 4066 | } |
| 4067 | |
| 4068 | /* |
| 4069 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 4070 | % % |
| 4071 | % % |
| 4072 | % % |
| 4073 | % S h a d o w I m a g e % |
| 4074 | % % |
| 4075 | % % |
| 4076 | % % |
| 4077 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 4078 | % |
| 4079 | % ShadowImage() simulates a shadow from the specified image and returns it. |
| 4080 | % |
| 4081 | % The format of the ShadowImage method is: |
| 4082 | % |
| 4083 | % Image *ShadowImage(const Image *image,const double opacity, |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4084 | % const double sigma,const ssize_t x_offset,const ssize_t y_offset, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4085 | % ExceptionInfo *exception) |
| 4086 | % |
| 4087 | % A description of each parameter follows: |
| 4088 | % |
| 4089 | % o image: the image. |
| 4090 | % |
| 4091 | % o opacity: percentage transparency. |
| 4092 | % |
| 4093 | % o sigma: the standard deviation of the Gaussian, in pixels. |
| 4094 | % |
| 4095 | % o x_offset: the shadow x-offset. |
| 4096 | % |
| 4097 | % o y_offset: the shadow y-offset. |
| 4098 | % |
| 4099 | % o exception: return any errors or warnings in this structure. |
| 4100 | % |
| 4101 | */ |
| 4102 | MagickExport Image *ShadowImage(const Image *image,const double opacity, |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4103 | const double sigma,const ssize_t x_offset,const ssize_t y_offset, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4104 | ExceptionInfo *exception) |
| 4105 | { |
| 4106 | #define ShadowImageTag "Shadow/Image" |
| 4107 | |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 4108 | CacheView |
| 4109 | *image_view; |
| 4110 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4111 | Image |
| 4112 | *border_image, |
| 4113 | *clone_image, |
| 4114 | *shadow_image; |
| 4115 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4116 | MagickBooleanType |
| 4117 | status; |
| 4118 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4119 | MagickOffsetType |
| 4120 | progress; |
| 4121 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4122 | RectangleInfo |
| 4123 | border_info; |
| 4124 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4125 | ssize_t |
| 4126 | y; |
| 4127 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4128 | assert(image != (Image *) NULL); |
| 4129 | assert(image->signature == MagickSignature); |
| 4130 | if (image->debug != MagickFalse) |
| 4131 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 4132 | assert(exception != (ExceptionInfo *) NULL); |
| 4133 | assert(exception->signature == MagickSignature); |
| 4134 | clone_image=CloneImage(image,0,0,MagickTrue,exception); |
| 4135 | if (clone_image == (Image *) NULL) |
| 4136 | return((Image *) NULL); |
| 4137 | (void) SetImageVirtualPixelMethod(clone_image,EdgeVirtualPixelMethod); |
| 4138 | clone_image->compose=OverCompositeOp; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4139 | border_info.width=(size_t) floor(2.0*sigma+0.5); |
| 4140 | border_info.height=(size_t) floor(2.0*sigma+0.5); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4141 | border_info.x=0; |
| 4142 | border_info.y=0; |
| 4143 | (void) QueryColorDatabase("none",&clone_image->border_color,exception); |
| 4144 | border_image=BorderImage(clone_image,&border_info,exception); |
| 4145 | clone_image=DestroyImage(clone_image); |
| 4146 | if (border_image == (Image *) NULL) |
| 4147 | return((Image *) NULL); |
| 4148 | if (border_image->matte == MagickFalse) |
| 4149 | (void) SetImageAlphaChannel(border_image,OpaqueAlphaChannel); |
| 4150 | /* |
| 4151 | Shadow image. |
| 4152 | */ |
| 4153 | status=MagickTrue; |
| 4154 | progress=0; |
| 4155 | image_view=AcquireCacheView(border_image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 4156 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 4157 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4158 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4159 | for (y=0; y < (ssize_t) border_image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4160 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4161 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4162 | x; |
| 4163 | |
| 4164 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 4165 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4166 | |
| 4167 | if (status == MagickFalse) |
| 4168 | continue; |
| 4169 | q=GetCacheViewAuthenticPixels(image_view,0,y,border_image->columns,1, |
| 4170 | exception); |
| 4171 | if (q == (PixelPacket *) NULL) |
| 4172 | { |
| 4173 | status=MagickFalse; |
| 4174 | continue; |
| 4175 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4176 | for (x=0; x < (ssize_t) border_image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4177 | { |
| 4178 | q->red=border_image->background_color.red; |
| 4179 | q->green=border_image->background_color.green; |
| 4180 | q->blue=border_image->background_color.blue; |
| 4181 | if (border_image->matte == MagickFalse) |
| 4182 | q->opacity=border_image->background_color.opacity; |
| 4183 | else |
cristy | 46f0820 | 2010-01-10 04:04:21 +0000 | [diff] [blame] | 4184 | q->opacity=ClampToQuantum((MagickRealType) (QuantumRange- |
| 4185 | GetAlphaPixelComponent(q)*opacity/100.0)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4186 | q++; |
| 4187 | } |
| 4188 | if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse) |
| 4189 | status=MagickFalse; |
| 4190 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 4191 | { |
| 4192 | MagickBooleanType |
| 4193 | proceed; |
| 4194 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 4195 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4196 | #pragma omp critical (MagickCore_ShadowImage) |
| 4197 | #endif |
| 4198 | proceed=SetImageProgress(image,ShadowImageTag,progress++, |
| 4199 | border_image->rows); |
| 4200 | if (proceed == MagickFalse) |
| 4201 | status=MagickFalse; |
| 4202 | } |
| 4203 | } |
| 4204 | image_view=DestroyCacheView(image_view); |
| 4205 | shadow_image=BlurImageChannel(border_image,AlphaChannel,0.0,sigma,exception); |
| 4206 | border_image=DestroyImage(border_image); |
| 4207 | if (shadow_image == (Image *) NULL) |
| 4208 | return((Image *) NULL); |
| 4209 | if (shadow_image->page.width == 0) |
| 4210 | shadow_image->page.width=shadow_image->columns; |
| 4211 | if (shadow_image->page.height == 0) |
| 4212 | shadow_image->page.height=shadow_image->rows; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4213 | shadow_image->page.width+=x_offset-(ssize_t) border_info.width; |
| 4214 | shadow_image->page.height+=y_offset-(ssize_t) border_info.height; |
| 4215 | shadow_image->page.x+=x_offset-(ssize_t) border_info.width; |
| 4216 | shadow_image->page.y+=y_offset-(ssize_t) border_info.height; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4217 | return(shadow_image); |
| 4218 | } |
| 4219 | |
| 4220 | /* |
| 4221 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 4222 | % % |
| 4223 | % % |
| 4224 | % % |
| 4225 | % S k e t c h I m a g e % |
| 4226 | % % |
| 4227 | % % |
| 4228 | % % |
| 4229 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 4230 | % |
| 4231 | % SketchImage() simulates a pencil sketch. We convolve the image with a |
| 4232 | % Gaussian operator of the given radius and standard deviation (sigma). For |
| 4233 | % reasonable results, radius should be larger than sigma. Use a radius of 0 |
| 4234 | % and SketchImage() selects a suitable radius for you. Angle gives the angle |
| 4235 | % of the sketch. |
| 4236 | % |
| 4237 | % The format of the SketchImage method is: |
| 4238 | % |
| 4239 | % Image *SketchImage(const Image *image,const double radius, |
| 4240 | % const double sigma,const double angle,ExceptionInfo *exception) |
| 4241 | % |
| 4242 | % A description of each parameter follows: |
| 4243 | % |
| 4244 | % o image: the image. |
| 4245 | % |
| 4246 | % o radius: the radius of the Gaussian, in pixels, not counting |
| 4247 | % the center pixel. |
| 4248 | % |
| 4249 | % o sigma: the standard deviation of the Gaussian, in pixels. |
| 4250 | % |
cristy | cee9711 | 2010-05-28 00:44:52 +0000 | [diff] [blame] | 4251 | % o angle: Apply the effect along this angle. |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4252 | % |
| 4253 | % o exception: return any errors or warnings in this structure. |
| 4254 | % |
| 4255 | */ |
| 4256 | MagickExport Image *SketchImage(const Image *image,const double radius, |
| 4257 | const double sigma,const double angle,ExceptionInfo *exception) |
| 4258 | { |
cristy | fa11211 | 2010-01-04 17:48:07 +0000 | [diff] [blame] | 4259 | CacheView |
| 4260 | *random_view; |
| 4261 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4262 | Image |
| 4263 | *blend_image, |
| 4264 | *blur_image, |
| 4265 | *dodge_image, |
| 4266 | *random_image, |
| 4267 | *sketch_image; |
| 4268 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4269 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4270 | y; |
| 4271 | |
| 4272 | MagickBooleanType |
| 4273 | status; |
| 4274 | |
| 4275 | MagickPixelPacket |
| 4276 | zero; |
| 4277 | |
| 4278 | RandomInfo |
cristy | fa11211 | 2010-01-04 17:48:07 +0000 | [diff] [blame] | 4279 | **restrict random_info; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4280 | |
| 4281 | /* |
| 4282 | Sketch image. |
| 4283 | */ |
| 4284 | random_image=CloneImage(image,image->columns << 1,image->rows << 1, |
| 4285 | MagickTrue,exception); |
| 4286 | if (random_image == (Image *) NULL) |
| 4287 | return((Image *) NULL); |
| 4288 | status=MagickTrue; |
| 4289 | GetMagickPixelPacket(random_image,&zero); |
cristy | 1b78443 | 2009-12-19 02:20:40 +0000 | [diff] [blame] | 4290 | random_info=AcquireRandomInfoThreadSet(); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4291 | random_view=AcquireCacheView(random_image); |
cristy | 1b78443 | 2009-12-19 02:20:40 +0000 | [diff] [blame] | 4292 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 4293 | #pragma omp parallel for schedule(dynamic,4) shared(status) |
| 4294 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4295 | for (y=0; y < (ssize_t) random_image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4296 | { |
cristy | 6ebe97c | 2010-07-03 01:17:28 +0000 | [diff] [blame] | 4297 | int |
| 4298 | id; |
| 4299 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4300 | MagickPixelPacket |
| 4301 | pixel; |
| 4302 | |
| 4303 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 4304 | *restrict indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4305 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4306 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4307 | x; |
| 4308 | |
| 4309 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 4310 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4311 | |
cristy | 1b78443 | 2009-12-19 02:20:40 +0000 | [diff] [blame] | 4312 | if (status == MagickFalse) |
| 4313 | continue; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4314 | q=QueueCacheViewAuthenticPixels(random_view,0,y,random_image->columns,1, |
| 4315 | exception); |
| 4316 | if (q == (PixelPacket *) NULL) |
| 4317 | { |
| 4318 | status=MagickFalse; |
| 4319 | continue; |
| 4320 | } |
| 4321 | indexes=GetCacheViewAuthenticIndexQueue(random_view); |
| 4322 | pixel=zero; |
cristy | 1b78443 | 2009-12-19 02:20:40 +0000 | [diff] [blame] | 4323 | id=GetOpenMPThreadId(); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4324 | for (x=0; x < (ssize_t) random_image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4325 | { |
| 4326 | pixel.red=(MagickRealType) (QuantumRange* |
cristy | 1b78443 | 2009-12-19 02:20:40 +0000 | [diff] [blame] | 4327 | GetPseudoRandomValue(random_info[id])); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4328 | pixel.green=pixel.red; |
| 4329 | pixel.blue=pixel.red; |
| 4330 | if (image->colorspace == CMYKColorspace) |
| 4331 | pixel.index=pixel.red; |
| 4332 | SetPixelPacket(random_image,&pixel,q,indexes+x); |
| 4333 | q++; |
| 4334 | } |
| 4335 | if (SyncCacheViewAuthenticPixels(random_view,exception) == MagickFalse) |
| 4336 | status=MagickFalse; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4337 | } |
| 4338 | random_view=DestroyCacheView(random_view); |
cristy | 1b78443 | 2009-12-19 02:20:40 +0000 | [diff] [blame] | 4339 | random_info=DestroyRandomInfoThreadSet(random_info); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4340 | if (status == MagickFalse) |
| 4341 | { |
| 4342 | random_image=DestroyImage(random_image); |
| 4343 | return(random_image); |
| 4344 | } |
| 4345 | blur_image=MotionBlurImage(random_image,radius,sigma,angle,exception); |
| 4346 | random_image=DestroyImage(random_image); |
| 4347 | if (blur_image == (Image *) NULL) |
| 4348 | return((Image *) NULL); |
| 4349 | dodge_image=EdgeImage(blur_image,radius,exception); |
| 4350 | blur_image=DestroyImage(blur_image); |
| 4351 | if (dodge_image == (Image *) NULL) |
| 4352 | return((Image *) NULL); |
| 4353 | (void) NormalizeImage(dodge_image); |
| 4354 | (void) NegateImage(dodge_image,MagickFalse); |
| 4355 | (void) TransformImage(&dodge_image,(char *) NULL,"50%"); |
| 4356 | sketch_image=CloneImage(image,0,0,MagickTrue,exception); |
| 4357 | if (sketch_image == (Image *) NULL) |
| 4358 | { |
| 4359 | dodge_image=DestroyImage(dodge_image); |
| 4360 | return((Image *) NULL); |
| 4361 | } |
| 4362 | (void) CompositeImage(sketch_image,ColorDodgeCompositeOp,dodge_image,0,0); |
| 4363 | dodge_image=DestroyImage(dodge_image); |
| 4364 | blend_image=CloneImage(image,0,0,MagickTrue,exception); |
| 4365 | if (blend_image == (Image *) NULL) |
| 4366 | { |
| 4367 | sketch_image=DestroyImage(sketch_image); |
| 4368 | return((Image *) NULL); |
| 4369 | } |
| 4370 | (void) SetImageArtifact(blend_image,"compose:args","20x80"); |
| 4371 | (void) CompositeImage(sketch_image,BlendCompositeOp,blend_image,0,0); |
| 4372 | blend_image=DestroyImage(blend_image); |
| 4373 | return(sketch_image); |
| 4374 | } |
| 4375 | |
| 4376 | /* |
| 4377 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 4378 | % % |
| 4379 | % % |
| 4380 | % % |
| 4381 | % S o l a r i z e I m a g e % |
| 4382 | % % |
| 4383 | % % |
| 4384 | % % |
| 4385 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 4386 | % |
| 4387 | % SolarizeImage() applies a special effect to the image, similar to the effect |
| 4388 | % achieved in a photo darkroom by selectively exposing areas of photo |
| 4389 | % sensitive paper to light. Threshold ranges from 0 to QuantumRange and is a |
| 4390 | % measure of the extent of the solarization. |
| 4391 | % |
| 4392 | % The format of the SolarizeImage method is: |
| 4393 | % |
| 4394 | % MagickBooleanType SolarizeImage(Image *image,const double threshold) |
| 4395 | % |
| 4396 | % A description of each parameter follows: |
| 4397 | % |
| 4398 | % o image: the image. |
| 4399 | % |
| 4400 | % o threshold: Define the extent of the solarization. |
| 4401 | % |
| 4402 | */ |
| 4403 | MagickExport MagickBooleanType SolarizeImage(Image *image, |
| 4404 | const double threshold) |
| 4405 | { |
| 4406 | #define SolarizeImageTag "Solarize/Image" |
| 4407 | |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 4408 | CacheView |
| 4409 | *image_view; |
| 4410 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4411 | ExceptionInfo |
| 4412 | *exception; |
| 4413 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4414 | MagickBooleanType |
| 4415 | status; |
| 4416 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4417 | MagickOffsetType |
| 4418 | progress; |
| 4419 | |
| 4420 | ssize_t |
| 4421 | y; |
| 4422 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4423 | assert(image != (Image *) NULL); |
| 4424 | assert(image->signature == MagickSignature); |
| 4425 | if (image->debug != MagickFalse) |
| 4426 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 4427 | if (image->storage_class == PseudoClass) |
| 4428 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4429 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4430 | i; |
| 4431 | |
| 4432 | /* |
| 4433 | Solarize colormap. |
| 4434 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4435 | for (i=0; i < (ssize_t) image->colors; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4436 | { |
| 4437 | if ((MagickRealType) image->colormap[i].red > threshold) |
| 4438 | image->colormap[i].red=(Quantum) QuantumRange-image->colormap[i].red; |
| 4439 | if ((MagickRealType) image->colormap[i].green > threshold) |
| 4440 | image->colormap[i].green=(Quantum) QuantumRange- |
| 4441 | image->colormap[i].green; |
| 4442 | if ((MagickRealType) image->colormap[i].blue > threshold) |
| 4443 | image->colormap[i].blue=(Quantum) QuantumRange- |
| 4444 | image->colormap[i].blue; |
| 4445 | } |
| 4446 | } |
| 4447 | /* |
| 4448 | Solarize image. |
| 4449 | */ |
| 4450 | status=MagickTrue; |
| 4451 | progress=0; |
| 4452 | exception=(&image->exception); |
| 4453 | image_view=AcquireCacheView(image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 4454 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 4455 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4456 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4457 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4458 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4459 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4460 | x; |
| 4461 | |
| 4462 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 4463 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4464 | |
| 4465 | if (status == MagickFalse) |
| 4466 | continue; |
| 4467 | q=GetCacheViewAuthenticPixels(image_view,0,y,image->columns,1, |
| 4468 | exception); |
| 4469 | if (q == (PixelPacket *) NULL) |
| 4470 | { |
| 4471 | status=MagickFalse; |
| 4472 | continue; |
| 4473 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4474 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4475 | { |
| 4476 | if ((MagickRealType) q->red > threshold) |
| 4477 | q->red=(Quantum) QuantumRange-q->red; |
| 4478 | if ((MagickRealType) q->green > threshold) |
| 4479 | q->green=(Quantum) QuantumRange-q->green; |
| 4480 | if ((MagickRealType) q->blue > threshold) |
| 4481 | q->blue=(Quantum) QuantumRange-q->blue; |
| 4482 | q++; |
| 4483 | } |
| 4484 | if (SyncCacheViewAuthenticPixels(image_view,exception) == MagickFalse) |
| 4485 | status=MagickFalse; |
| 4486 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 4487 | { |
| 4488 | MagickBooleanType |
| 4489 | proceed; |
| 4490 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 4491 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4492 | #pragma omp critical (MagickCore_SolarizeImage) |
| 4493 | #endif |
| 4494 | proceed=SetImageProgress(image,SolarizeImageTag,progress++,image->rows); |
| 4495 | if (proceed == MagickFalse) |
| 4496 | status=MagickFalse; |
| 4497 | } |
| 4498 | } |
| 4499 | image_view=DestroyCacheView(image_view); |
| 4500 | return(status); |
| 4501 | } |
| 4502 | |
| 4503 | /* |
| 4504 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 4505 | % % |
| 4506 | % % |
| 4507 | % % |
| 4508 | % S t e g a n o I m a g e % |
| 4509 | % % |
| 4510 | % % |
| 4511 | % % |
| 4512 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 4513 | % |
| 4514 | % SteganoImage() hides a digital watermark within the image. Recover |
| 4515 | % the hidden watermark later to prove that the authenticity of an image. |
| 4516 | % Offset defines the start position within the image to hide the watermark. |
| 4517 | % |
| 4518 | % The format of the SteganoImage method is: |
| 4519 | % |
| 4520 | % Image *SteganoImage(const Image *image,Image *watermark, |
| 4521 | % ExceptionInfo *exception) |
| 4522 | % |
| 4523 | % A description of each parameter follows: |
| 4524 | % |
| 4525 | % o image: the image. |
| 4526 | % |
| 4527 | % o watermark: the watermark image. |
| 4528 | % |
| 4529 | % o exception: return any errors or warnings in this structure. |
| 4530 | % |
| 4531 | */ |
| 4532 | MagickExport Image *SteganoImage(const Image *image,const Image *watermark, |
| 4533 | ExceptionInfo *exception) |
| 4534 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4535 | #define GetBit(alpha,i) ((((size_t) (alpha) >> (size_t) \ |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4536 | (i)) & 0x01) != 0) |
cristy | eaedf06 | 2010-05-29 22:36:02 +0000 | [diff] [blame] | 4537 | #define SetBit(alpha,i,set) (alpha)=(Quantum) ((set) != 0 ? (size_t) (alpha) \ |
| 4538 | | (one << (size_t) (i)) : (size_t) (alpha) & ~(one << (size_t) (i))) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4539 | #define SteganoImageTag "Stegano/Image" |
| 4540 | |
| 4541 | Image |
| 4542 | *stegano_image; |
| 4543 | |
| 4544 | int |
| 4545 | c; |
| 4546 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4547 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4548 | i, |
| 4549 | j, |
| 4550 | k, |
| 4551 | y; |
| 4552 | |
| 4553 | MagickBooleanType |
| 4554 | status; |
| 4555 | |
| 4556 | PixelPacket |
| 4557 | pixel; |
| 4558 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4559 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4560 | x; |
| 4561 | |
| 4562 | register PixelPacket |
| 4563 | *q; |
| 4564 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4565 | size_t |
cristy | eaedf06 | 2010-05-29 22:36:02 +0000 | [diff] [blame] | 4566 | depth, |
| 4567 | one; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4568 | |
| 4569 | /* |
| 4570 | Initialize steganographic image attributes. |
| 4571 | */ |
| 4572 | assert(image != (const Image *) NULL); |
| 4573 | assert(image->signature == MagickSignature); |
| 4574 | if (image->debug != MagickFalse) |
| 4575 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 4576 | assert(watermark != (const Image *) NULL); |
| 4577 | assert(watermark->signature == MagickSignature); |
| 4578 | assert(exception != (ExceptionInfo *) NULL); |
| 4579 | assert(exception->signature == MagickSignature); |
cristy | eaedf06 | 2010-05-29 22:36:02 +0000 | [diff] [blame] | 4580 | one=1UL; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4581 | stegano_image=CloneImage(image,0,0,MagickTrue,exception); |
| 4582 | if (stegano_image == (Image *) NULL) |
| 4583 | return((Image *) NULL); |
| 4584 | if (SetImageStorageClass(stegano_image,DirectClass) == MagickFalse) |
| 4585 | { |
| 4586 | InheritException(exception,&stegano_image->exception); |
| 4587 | stegano_image=DestroyImage(stegano_image); |
| 4588 | return((Image *) NULL); |
| 4589 | } |
| 4590 | stegano_image->depth=MAGICKCORE_QUANTUM_DEPTH; |
| 4591 | /* |
| 4592 | Hide watermark in low-order bits of image. |
| 4593 | */ |
| 4594 | c=0; |
| 4595 | i=0; |
| 4596 | j=0; |
| 4597 | depth=stegano_image->depth; |
| 4598 | k=image->offset; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4599 | for (i=(ssize_t) depth-1; (i >= 0) && (j < (ssize_t) depth); i--) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4600 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4601 | for (y=0; (y < (ssize_t) watermark->rows) && (j < (ssize_t) depth); y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4602 | { |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4603 | for (x=0; (x < (ssize_t) watermark->columns) && (j < (ssize_t) depth); x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4604 | { |
| 4605 | (void) GetOneVirtualPixel(watermark,x,y,&pixel,exception); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4606 | if ((k/(ssize_t) stegano_image->columns) >= (ssize_t) stegano_image->rows) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4607 | break; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4608 | q=GetAuthenticPixels(stegano_image,k % (ssize_t) stegano_image->columns, |
| 4609 | k/(ssize_t) stegano_image->columns,1,1,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4610 | if (q == (PixelPacket *) NULL) |
| 4611 | break; |
| 4612 | switch (c) |
| 4613 | { |
| 4614 | case 0: |
| 4615 | { |
| 4616 | SetBit(q->red,j,GetBit(PixelIntensityToQuantum(&pixel),i)); |
| 4617 | break; |
| 4618 | } |
| 4619 | case 1: |
| 4620 | { |
| 4621 | SetBit(q->green,j,GetBit(PixelIntensityToQuantum(&pixel),i)); |
| 4622 | break; |
| 4623 | } |
| 4624 | case 2: |
| 4625 | { |
| 4626 | SetBit(q->blue,j,GetBit(PixelIntensityToQuantum(&pixel),i)); |
| 4627 | break; |
| 4628 | } |
| 4629 | } |
| 4630 | if (SyncAuthenticPixels(stegano_image,exception) == MagickFalse) |
| 4631 | break; |
| 4632 | c++; |
| 4633 | if (c == 3) |
| 4634 | c=0; |
| 4635 | k++; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4636 | if (k == (ssize_t) (stegano_image->columns*stegano_image->columns)) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4637 | k=0; |
| 4638 | if (k == image->offset) |
| 4639 | j++; |
| 4640 | } |
| 4641 | } |
cristy | 8b27a6d | 2010-02-14 03:31:15 +0000 | [diff] [blame] | 4642 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4643 | { |
cristy | 8b27a6d | 2010-02-14 03:31:15 +0000 | [diff] [blame] | 4644 | MagickBooleanType |
| 4645 | proceed; |
| 4646 | |
| 4647 | proceed=SetImageProgress(image,SteganoImageTag,(MagickOffsetType) |
| 4648 | (depth-i),depth); |
| 4649 | if (proceed == MagickFalse) |
| 4650 | status=MagickFalse; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4651 | } |
| 4652 | } |
| 4653 | if (stegano_image->storage_class == PseudoClass) |
| 4654 | (void) SyncImage(stegano_image); |
| 4655 | return(stegano_image); |
| 4656 | } |
| 4657 | |
| 4658 | /* |
| 4659 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 4660 | % % |
| 4661 | % % |
| 4662 | % % |
| 4663 | % S t e r e o A n a g l y p h I m a g e % |
| 4664 | % % |
| 4665 | % % |
| 4666 | % % |
| 4667 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 4668 | % |
| 4669 | % StereoAnaglyphImage() combines two images and produces a single image that |
| 4670 | % is the composite of a left and right image of a stereo pair. Special |
| 4671 | % red-green stereo glasses are required to view this effect. |
| 4672 | % |
| 4673 | % The format of the StereoAnaglyphImage method is: |
| 4674 | % |
| 4675 | % Image *StereoImage(const Image *left_image,const Image *right_image, |
| 4676 | % ExceptionInfo *exception) |
| 4677 | % Image *StereoAnaglyphImage(const Image *left_image, |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4678 | % const Image *right_image,const ssize_t x_offset,const ssize_t y_offset, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4679 | % ExceptionInfo *exception) |
| 4680 | % |
| 4681 | % A description of each parameter follows: |
| 4682 | % |
| 4683 | % o left_image: the left image. |
| 4684 | % |
| 4685 | % o right_image: the right image. |
| 4686 | % |
| 4687 | % o exception: return any errors or warnings in this structure. |
| 4688 | % |
| 4689 | % o x_offset: amount, in pixels, by which the left image is offset to the |
| 4690 | % right of the right image. |
| 4691 | % |
| 4692 | % o y_offset: amount, in pixels, by which the left image is offset to the |
| 4693 | % bottom of the right image. |
| 4694 | % |
| 4695 | % |
| 4696 | */ |
| 4697 | MagickExport Image *StereoImage(const Image *left_image, |
| 4698 | const Image *right_image,ExceptionInfo *exception) |
| 4699 | { |
| 4700 | return(StereoAnaglyphImage(left_image,right_image,0,0,exception)); |
| 4701 | } |
| 4702 | |
| 4703 | MagickExport Image *StereoAnaglyphImage(const Image *left_image, |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4704 | const Image *right_image,const ssize_t x_offset,const ssize_t y_offset, |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4705 | ExceptionInfo *exception) |
| 4706 | { |
| 4707 | #define StereoImageTag "Stereo/Image" |
| 4708 | |
| 4709 | const Image |
| 4710 | *image; |
| 4711 | |
| 4712 | Image |
| 4713 | *stereo_image; |
| 4714 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4715 | ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4716 | y; |
| 4717 | |
| 4718 | MagickBooleanType |
| 4719 | status; |
| 4720 | |
| 4721 | assert(left_image != (const Image *) NULL); |
| 4722 | assert(left_image->signature == MagickSignature); |
| 4723 | if (left_image->debug != MagickFalse) |
| 4724 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s", |
| 4725 | left_image->filename); |
| 4726 | assert(right_image != (const Image *) NULL); |
| 4727 | assert(right_image->signature == MagickSignature); |
| 4728 | assert(exception != (ExceptionInfo *) NULL); |
| 4729 | assert(exception->signature == MagickSignature); |
| 4730 | assert(right_image != (const Image *) NULL); |
| 4731 | image=left_image; |
| 4732 | if ((left_image->columns != right_image->columns) || |
| 4733 | (left_image->rows != right_image->rows)) |
| 4734 | ThrowImageException(ImageError,"LeftAndRightImageSizesDiffer"); |
| 4735 | /* |
| 4736 | Initialize stereo image attributes. |
| 4737 | */ |
| 4738 | stereo_image=CloneImage(left_image,left_image->columns,left_image->rows, |
| 4739 | MagickTrue,exception); |
| 4740 | if (stereo_image == (Image *) NULL) |
| 4741 | return((Image *) NULL); |
| 4742 | if (SetImageStorageClass(stereo_image,DirectClass) == MagickFalse) |
| 4743 | { |
| 4744 | InheritException(exception,&stereo_image->exception); |
| 4745 | stereo_image=DestroyImage(stereo_image); |
| 4746 | return((Image *) NULL); |
| 4747 | } |
| 4748 | /* |
| 4749 | Copy left image to red channel and right image to blue channel. |
| 4750 | */ |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4751 | for (y=0; y < (ssize_t) stereo_image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4752 | { |
| 4753 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 4754 | *restrict p, |
| 4755 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4756 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4757 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4758 | x; |
| 4759 | |
| 4760 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 4761 | *restrict r; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4762 | |
| 4763 | p=GetVirtualPixels(left_image,-x_offset,y-y_offset,image->columns,1, |
| 4764 | exception); |
| 4765 | q=GetVirtualPixels(right_image,0,y,right_image->columns,1,exception); |
| 4766 | r=QueueAuthenticPixels(stereo_image,0,y,stereo_image->columns,1,exception); |
| 4767 | if ((p == (PixelPacket *) NULL) || (q == (PixelPacket *) NULL) || |
| 4768 | (r == (PixelPacket *) NULL)) |
| 4769 | break; |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4770 | for (x=0; x < (ssize_t) stereo_image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4771 | { |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 4772 | r->red=GetRedPixelComponent(p); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4773 | r->green=q->green; |
| 4774 | r->blue=q->blue; |
| 4775 | r->opacity=(Quantum) ((p->opacity+q->opacity)/2); |
| 4776 | p++; |
| 4777 | q++; |
| 4778 | r++; |
| 4779 | } |
| 4780 | if (SyncAuthenticPixels(stereo_image,exception) == MagickFalse) |
| 4781 | break; |
cristy | 8b27a6d | 2010-02-14 03:31:15 +0000 | [diff] [blame] | 4782 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4783 | { |
cristy | 8b27a6d | 2010-02-14 03:31:15 +0000 | [diff] [blame] | 4784 | MagickBooleanType |
| 4785 | proceed; |
| 4786 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4787 | proceed=SetImageProgress(image,StereoImageTag,(MagickOffsetType) y, |
| 4788 | stereo_image->rows); |
cristy | 8b27a6d | 2010-02-14 03:31:15 +0000 | [diff] [blame] | 4789 | if (proceed == MagickFalse) |
| 4790 | status=MagickFalse; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4791 | } |
| 4792 | } |
| 4793 | return(stereo_image); |
| 4794 | } |
| 4795 | |
| 4796 | /* |
| 4797 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 4798 | % % |
| 4799 | % % |
| 4800 | % % |
| 4801 | % S w i r l I m a g e % |
| 4802 | % % |
| 4803 | % % |
| 4804 | % % |
| 4805 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 4806 | % |
| 4807 | % SwirlImage() swirls the pixels about the center of the image, where |
| 4808 | % degrees indicates the sweep of the arc through which each pixel is moved. |
| 4809 | % You get a more dramatic effect as the degrees move from 1 to 360. |
| 4810 | % |
| 4811 | % The format of the SwirlImage method is: |
| 4812 | % |
| 4813 | % Image *SwirlImage(const Image *image,double degrees, |
| 4814 | % ExceptionInfo *exception) |
| 4815 | % |
| 4816 | % A description of each parameter follows: |
| 4817 | % |
| 4818 | % o image: the image. |
| 4819 | % |
| 4820 | % o degrees: Define the tightness of the swirling effect. |
| 4821 | % |
| 4822 | % o exception: return any errors or warnings in this structure. |
| 4823 | % |
| 4824 | */ |
| 4825 | MagickExport Image *SwirlImage(const Image *image,double degrees, |
| 4826 | ExceptionInfo *exception) |
| 4827 | { |
| 4828 | #define SwirlImageTag "Swirl/Image" |
| 4829 | |
cristy | fa11211 | 2010-01-04 17:48:07 +0000 | [diff] [blame] | 4830 | CacheView |
| 4831 | *image_view, |
| 4832 | *swirl_view; |
| 4833 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4834 | Image |
| 4835 | *swirl_image; |
| 4836 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4837 | MagickBooleanType |
| 4838 | status; |
| 4839 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4840 | MagickOffsetType |
| 4841 | progress; |
| 4842 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4843 | MagickPixelPacket |
| 4844 | zero; |
| 4845 | |
| 4846 | MagickRealType |
| 4847 | radius; |
| 4848 | |
| 4849 | PointInfo |
| 4850 | center, |
| 4851 | scale; |
| 4852 | |
| 4853 | ResampleFilter |
cristy | fa11211 | 2010-01-04 17:48:07 +0000 | [diff] [blame] | 4854 | **restrict resample_filter; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4855 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4856 | ssize_t |
| 4857 | y; |
| 4858 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4859 | /* |
| 4860 | Initialize swirl image attributes. |
| 4861 | */ |
| 4862 | assert(image != (const Image *) NULL); |
| 4863 | assert(image->signature == MagickSignature); |
| 4864 | if (image->debug != MagickFalse) |
| 4865 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 4866 | assert(exception != (ExceptionInfo *) NULL); |
| 4867 | assert(exception->signature == MagickSignature); |
| 4868 | swirl_image=CloneImage(image,0,0,MagickTrue,exception); |
| 4869 | if (swirl_image == (Image *) NULL) |
| 4870 | return((Image *) NULL); |
| 4871 | if (SetImageStorageClass(swirl_image,DirectClass) == MagickFalse) |
| 4872 | { |
| 4873 | InheritException(exception,&swirl_image->exception); |
| 4874 | swirl_image=DestroyImage(swirl_image); |
| 4875 | return((Image *) NULL); |
| 4876 | } |
| 4877 | if (swirl_image->background_color.opacity != OpaqueOpacity) |
| 4878 | swirl_image->matte=MagickTrue; |
| 4879 | /* |
| 4880 | Compute scaling factor. |
| 4881 | */ |
| 4882 | center.x=(double) image->columns/2.0; |
| 4883 | center.y=(double) image->rows/2.0; |
| 4884 | radius=MagickMax(center.x,center.y); |
| 4885 | scale.x=1.0; |
| 4886 | scale.y=1.0; |
| 4887 | if (image->columns > image->rows) |
| 4888 | scale.y=(double) image->columns/(double) image->rows; |
| 4889 | else |
| 4890 | if (image->columns < image->rows) |
| 4891 | scale.x=(double) image->rows/(double) image->columns; |
| 4892 | degrees=(double) DegreesToRadians(degrees); |
| 4893 | /* |
| 4894 | Swirl image. |
| 4895 | */ |
| 4896 | status=MagickTrue; |
| 4897 | progress=0; |
| 4898 | GetMagickPixelPacket(swirl_image,&zero); |
cristy | b2a11ae | 2010-02-22 00:53:36 +0000 | [diff] [blame] | 4899 | resample_filter=AcquireResampleFilterThreadSet(image, |
| 4900 | UndefinedVirtualPixelMethod,MagickTrue,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4901 | image_view=AcquireCacheView(image); |
| 4902 | swirl_view=AcquireCacheView(swirl_image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 4903 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 4904 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4905 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4906 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4907 | { |
cristy | 6ebe97c | 2010-07-03 01:17:28 +0000 | [diff] [blame] | 4908 | int |
| 4909 | id; |
| 4910 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4911 | MagickPixelPacket |
| 4912 | pixel; |
| 4913 | |
| 4914 | MagickRealType |
| 4915 | distance; |
| 4916 | |
| 4917 | PointInfo |
| 4918 | delta; |
| 4919 | |
| 4920 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 4921 | *restrict swirl_indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4922 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4923 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4924 | x; |
| 4925 | |
| 4926 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 4927 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4928 | |
| 4929 | if (status == MagickFalse) |
| 4930 | continue; |
| 4931 | q=GetCacheViewAuthenticPixels(swirl_view,0,y,swirl_image->columns,1, |
| 4932 | exception); |
| 4933 | if (q == (PixelPacket *) NULL) |
| 4934 | { |
| 4935 | status=MagickFalse; |
| 4936 | continue; |
| 4937 | } |
| 4938 | swirl_indexes=GetCacheViewAuthenticIndexQueue(swirl_view); |
| 4939 | delta.y=scale.y*(double) (y-center.y); |
| 4940 | pixel=zero; |
| 4941 | id=GetOpenMPThreadId(); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 4942 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4943 | { |
| 4944 | /* |
| 4945 | Determine if the pixel is within an ellipse. |
| 4946 | */ |
| 4947 | delta.x=scale.x*(double) (x-center.x); |
| 4948 | distance=delta.x*delta.x+delta.y*delta.y; |
| 4949 | if (distance < (radius*radius)) |
| 4950 | { |
| 4951 | MagickRealType |
| 4952 | cosine, |
| 4953 | factor, |
| 4954 | sine; |
| 4955 | |
| 4956 | /* |
| 4957 | Swirl the pixel. |
| 4958 | */ |
| 4959 | factor=1.0-sqrt((double) distance)/radius; |
| 4960 | sine=sin((double) (degrees*factor*factor)); |
| 4961 | cosine=cos((double) (degrees*factor*factor)); |
| 4962 | (void) ResamplePixelColor(resample_filter[id],(double) ((cosine* |
| 4963 | delta.x-sine*delta.y)/scale.x+center.x),(double) ((sine*delta.x+ |
| 4964 | cosine*delta.y)/scale.y+center.y),&pixel); |
| 4965 | SetPixelPacket(swirl_image,&pixel,q,swirl_indexes+x); |
| 4966 | } |
| 4967 | q++; |
| 4968 | } |
| 4969 | if (SyncCacheViewAuthenticPixels(swirl_view,exception) == MagickFalse) |
| 4970 | status=MagickFalse; |
| 4971 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 4972 | { |
| 4973 | MagickBooleanType |
| 4974 | proceed; |
| 4975 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 4976 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 4977 | #pragma omp critical (MagickCore_SwirlImage) |
| 4978 | #endif |
| 4979 | proceed=SetImageProgress(image,SwirlImageTag,progress++,image->rows); |
| 4980 | if (proceed == MagickFalse) |
| 4981 | status=MagickFalse; |
| 4982 | } |
| 4983 | } |
| 4984 | swirl_view=DestroyCacheView(swirl_view); |
| 4985 | image_view=DestroyCacheView(image_view); |
| 4986 | resample_filter=DestroyResampleFilterThreadSet(resample_filter); |
| 4987 | if (status == MagickFalse) |
| 4988 | swirl_image=DestroyImage(swirl_image); |
| 4989 | return(swirl_image); |
| 4990 | } |
| 4991 | |
| 4992 | /* |
| 4993 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 4994 | % % |
| 4995 | % % |
| 4996 | % % |
| 4997 | % T i n t I m a g e % |
| 4998 | % % |
| 4999 | % % |
| 5000 | % % |
| 5001 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 5002 | % |
| 5003 | % TintImage() applies a color vector to each pixel in the image. The length |
| 5004 | % of the vector is 0 for black and white and at its maximum for the midtones. |
| 5005 | % The vector weighting function is f(x)=(1-(4.0*((x-0.5)*(x-0.5)))) |
| 5006 | % |
| 5007 | % The format of the TintImage method is: |
| 5008 | % |
| 5009 | % Image *TintImage(const Image *image,const char *opacity, |
| 5010 | % const PixelPacket tint,ExceptionInfo *exception) |
| 5011 | % |
| 5012 | % A description of each parameter follows: |
| 5013 | % |
| 5014 | % o image: the image. |
| 5015 | % |
| 5016 | % o opacity: A color value used for tinting. |
| 5017 | % |
| 5018 | % o tint: A color value used for tinting. |
| 5019 | % |
| 5020 | % o exception: return any errors or warnings in this structure. |
| 5021 | % |
| 5022 | */ |
| 5023 | MagickExport Image *TintImage(const Image *image,const char *opacity, |
| 5024 | const PixelPacket tint,ExceptionInfo *exception) |
| 5025 | { |
| 5026 | #define TintImageTag "Tint/Image" |
| 5027 | |
cristy | c4c8d13 | 2010-01-07 01:58:38 +0000 | [diff] [blame] | 5028 | CacheView |
| 5029 | *image_view, |
| 5030 | *tint_view; |
| 5031 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5032 | GeometryInfo |
| 5033 | geometry_info; |
| 5034 | |
| 5035 | Image |
| 5036 | *tint_image; |
| 5037 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5038 | MagickBooleanType |
| 5039 | status; |
| 5040 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5041 | MagickOffsetType |
| 5042 | progress; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5043 | |
| 5044 | MagickPixelPacket |
| 5045 | color_vector, |
| 5046 | pixel; |
| 5047 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5048 | MagickStatusType |
| 5049 | flags; |
| 5050 | |
| 5051 | ssize_t |
| 5052 | y; |
| 5053 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5054 | /* |
| 5055 | Allocate tint image. |
| 5056 | */ |
| 5057 | assert(image != (const Image *) NULL); |
| 5058 | assert(image->signature == MagickSignature); |
| 5059 | if (image->debug != MagickFalse) |
| 5060 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 5061 | assert(exception != (ExceptionInfo *) NULL); |
| 5062 | assert(exception->signature == MagickSignature); |
| 5063 | tint_image=CloneImage(image,image->columns,image->rows,MagickTrue,exception); |
| 5064 | if (tint_image == (Image *) NULL) |
| 5065 | return((Image *) NULL); |
| 5066 | if (SetImageStorageClass(tint_image,DirectClass) == MagickFalse) |
| 5067 | { |
| 5068 | InheritException(exception,&tint_image->exception); |
| 5069 | tint_image=DestroyImage(tint_image); |
| 5070 | return((Image *) NULL); |
| 5071 | } |
| 5072 | if (opacity == (const char *) NULL) |
| 5073 | return(tint_image); |
| 5074 | /* |
| 5075 | Determine RGB values of the color. |
| 5076 | */ |
| 5077 | flags=ParseGeometry(opacity,&geometry_info); |
| 5078 | pixel.red=geometry_info.rho; |
| 5079 | if ((flags & SigmaValue) != 0) |
| 5080 | pixel.green=geometry_info.sigma; |
| 5081 | else |
| 5082 | pixel.green=pixel.red; |
| 5083 | if ((flags & XiValue) != 0) |
| 5084 | pixel.blue=geometry_info.xi; |
| 5085 | else |
| 5086 | pixel.blue=pixel.red; |
| 5087 | if ((flags & PsiValue) != 0) |
| 5088 | pixel.opacity=geometry_info.psi; |
| 5089 | else |
| 5090 | pixel.opacity=(MagickRealType) OpaqueOpacity; |
| 5091 | color_vector.red=(MagickRealType) (pixel.red*tint.red/100.0- |
| 5092 | PixelIntensity(&tint)); |
| 5093 | color_vector.green=(MagickRealType) (pixel.green*tint.green/100.0- |
| 5094 | PixelIntensity(&tint)); |
| 5095 | color_vector.blue=(MagickRealType) (pixel.blue*tint.blue/100.0- |
| 5096 | PixelIntensity(&tint)); |
| 5097 | /* |
| 5098 | Tint image. |
| 5099 | */ |
| 5100 | status=MagickTrue; |
| 5101 | progress=0; |
| 5102 | image_view=AcquireCacheView(image); |
| 5103 | tint_view=AcquireCacheView(tint_image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 5104 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 5105 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5106 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5107 | for (y=0; y < (ssize_t) image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5108 | { |
| 5109 | register const PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 5110 | *restrict p; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5111 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5112 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5113 | x; |
| 5114 | |
| 5115 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 5116 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5117 | |
| 5118 | if (status == MagickFalse) |
| 5119 | continue; |
| 5120 | p=GetCacheViewVirtualPixels(image_view,0,y,image->columns,1,exception); |
| 5121 | q=QueueCacheViewAuthenticPixels(tint_view,0,y,tint_image->columns,1, |
| 5122 | exception); |
| 5123 | if ((p == (const PixelPacket *) NULL) || (q == (PixelPacket *) NULL)) |
| 5124 | { |
| 5125 | status=MagickFalse; |
| 5126 | continue; |
| 5127 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5128 | for (x=0; x < (ssize_t) image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5129 | { |
| 5130 | MagickPixelPacket |
| 5131 | pixel; |
| 5132 | |
| 5133 | MagickRealType |
| 5134 | weight; |
| 5135 | |
| 5136 | weight=QuantumScale*p->red-0.5; |
| 5137 | pixel.red=(MagickRealType) p->red+color_vector.red*(1.0-(4.0* |
| 5138 | (weight*weight))); |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 5139 | SetRedPixelComponent(q,ClampRedPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5140 | weight=QuantumScale*p->green-0.5; |
| 5141 | pixel.green=(MagickRealType) p->green+color_vector.green*(1.0-(4.0* |
| 5142 | (weight*weight))); |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 5143 | SetGreenPixelComponent(q,ClampGreenPixelComponent(&pixel)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5144 | weight=QuantumScale*p->blue-0.5; |
| 5145 | pixel.blue=(MagickRealType) p->blue+color_vector.blue*(1.0-(4.0* |
| 5146 | (weight*weight))); |
cristy | ce70c17 | 2010-01-07 17:15:30 +0000 | [diff] [blame] | 5147 | SetBluePixelComponent(q,ClampBluePixelComponent(&pixel)); |
| 5148 | SetOpacityPixelComponent(q,GetOpacityPixelComponent(p)); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5149 | p++; |
| 5150 | q++; |
| 5151 | } |
| 5152 | if (SyncCacheViewAuthenticPixels(tint_view,exception) == MagickFalse) |
| 5153 | status=MagickFalse; |
| 5154 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 5155 | { |
| 5156 | MagickBooleanType |
| 5157 | proceed; |
| 5158 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 5159 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5160 | #pragma omp critical (MagickCore_TintImage) |
| 5161 | #endif |
| 5162 | proceed=SetImageProgress(image,TintImageTag,progress++,image->rows); |
| 5163 | if (proceed == MagickFalse) |
| 5164 | status=MagickFalse; |
| 5165 | } |
| 5166 | } |
| 5167 | tint_view=DestroyCacheView(tint_view); |
| 5168 | image_view=DestroyCacheView(image_view); |
| 5169 | if (status == MagickFalse) |
| 5170 | tint_image=DestroyImage(tint_image); |
| 5171 | return(tint_image); |
| 5172 | } |
| 5173 | |
| 5174 | /* |
| 5175 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 5176 | % % |
| 5177 | % % |
| 5178 | % % |
| 5179 | % V i g n e t t e I m a g e % |
| 5180 | % % |
| 5181 | % % |
| 5182 | % % |
| 5183 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 5184 | % |
| 5185 | % VignetteImage() softens the edges of the image in vignette style. |
| 5186 | % |
| 5187 | % The format of the VignetteImage method is: |
| 5188 | % |
| 5189 | % Image *VignetteImage(const Image *image,const double radius, |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5190 | % const double sigma,const ssize_t x,const ssize_t y,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5191 | % |
| 5192 | % A description of each parameter follows: |
| 5193 | % |
| 5194 | % o image: the image. |
| 5195 | % |
| 5196 | % o radius: the radius of the pixel neighborhood. |
| 5197 | % |
| 5198 | % o sigma: the standard deviation of the Gaussian, in pixels. |
| 5199 | % |
| 5200 | % o x, y: Define the x and y ellipse offset. |
| 5201 | % |
| 5202 | % o exception: return any errors or warnings in this structure. |
| 5203 | % |
| 5204 | */ |
| 5205 | MagickExport Image *VignetteImage(const Image *image,const double radius, |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5206 | const double sigma,const ssize_t x,const ssize_t y,ExceptionInfo *exception) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5207 | { |
| 5208 | char |
| 5209 | ellipse[MaxTextExtent]; |
| 5210 | |
| 5211 | DrawInfo |
| 5212 | *draw_info; |
| 5213 | |
| 5214 | Image |
| 5215 | *canvas_image, |
| 5216 | *blur_image, |
| 5217 | *oval_image, |
| 5218 | *vignette_image; |
| 5219 | |
| 5220 | assert(image != (Image *) NULL); |
| 5221 | assert(image->signature == MagickSignature); |
| 5222 | if (image->debug != MagickFalse) |
| 5223 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 5224 | assert(exception != (ExceptionInfo *) NULL); |
| 5225 | assert(exception->signature == MagickSignature); |
| 5226 | canvas_image=CloneImage(image,0,0,MagickTrue,exception); |
| 5227 | if (canvas_image == (Image *) NULL) |
| 5228 | return((Image *) NULL); |
| 5229 | if (SetImageStorageClass(canvas_image,DirectClass) == MagickFalse) |
| 5230 | { |
| 5231 | InheritException(exception,&canvas_image->exception); |
| 5232 | canvas_image=DestroyImage(canvas_image); |
| 5233 | return((Image *) NULL); |
| 5234 | } |
| 5235 | canvas_image->matte=MagickTrue; |
| 5236 | oval_image=CloneImage(canvas_image,canvas_image->columns, |
| 5237 | canvas_image->rows,MagickTrue,exception); |
| 5238 | if (oval_image == (Image *) NULL) |
| 5239 | { |
| 5240 | canvas_image=DestroyImage(canvas_image); |
| 5241 | return((Image *) NULL); |
| 5242 | } |
| 5243 | (void) QueryColorDatabase("#000000",&oval_image->background_color,exception); |
| 5244 | (void) SetImageBackgroundColor(oval_image); |
| 5245 | draw_info=CloneDrawInfo((const ImageInfo *) NULL,(const DrawInfo *) NULL); |
| 5246 | (void) QueryColorDatabase("#ffffff",&draw_info->fill,exception); |
| 5247 | (void) QueryColorDatabase("#ffffff",&draw_info->stroke,exception); |
| 5248 | (void) FormatMagickString(ellipse,MaxTextExtent, |
cristy | e7f5109 | 2010-01-17 00:39:37 +0000 | [diff] [blame] | 5249 | "ellipse %g,%g,%g,%g,0.0,360.0",image->columns/2.0, |
cristy | 8cd5b31 | 2010-01-07 01:10:24 +0000 | [diff] [blame] | 5250 | image->rows/2.0,image->columns/2.0-x,image->rows/2.0-y); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5251 | draw_info->primitive=AcquireString(ellipse); |
| 5252 | (void) DrawImage(oval_image,draw_info); |
| 5253 | draw_info=DestroyDrawInfo(draw_info); |
| 5254 | blur_image=BlurImage(oval_image,radius,sigma,exception); |
| 5255 | oval_image=DestroyImage(oval_image); |
| 5256 | if (blur_image == (Image *) NULL) |
| 5257 | { |
| 5258 | canvas_image=DestroyImage(canvas_image); |
| 5259 | return((Image *) NULL); |
| 5260 | } |
| 5261 | blur_image->matte=MagickFalse; |
| 5262 | (void) CompositeImage(canvas_image,CopyOpacityCompositeOp,blur_image,0,0); |
| 5263 | blur_image=DestroyImage(blur_image); |
| 5264 | vignette_image=MergeImageLayers(canvas_image,FlattenLayer,exception); |
| 5265 | canvas_image=DestroyImage(canvas_image); |
| 5266 | return(vignette_image); |
| 5267 | } |
| 5268 | |
| 5269 | /* |
| 5270 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 5271 | % % |
| 5272 | % % |
| 5273 | % % |
| 5274 | % W a v e I m a g e % |
| 5275 | % % |
| 5276 | % % |
| 5277 | % % |
| 5278 | %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% |
| 5279 | % |
| 5280 | % WaveImage() creates a "ripple" effect in the image by shifting the pixels |
cristy | cee9711 | 2010-05-28 00:44:52 +0000 | [diff] [blame] | 5281 | % vertically along a sine wave whose amplitude and wavelength is specified |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5282 | % by the given parameters. |
| 5283 | % |
| 5284 | % The format of the WaveImage method is: |
| 5285 | % |
| 5286 | % Image *WaveImage(const Image *image,const double amplitude, |
| 5287 | % const double wave_length,ExceptionInfo *exception) |
| 5288 | % |
| 5289 | % A description of each parameter follows: |
| 5290 | % |
| 5291 | % o image: the image. |
| 5292 | % |
| 5293 | % o amplitude, wave_length: Define the amplitude and wave length of the |
| 5294 | % sine wave. |
| 5295 | % |
| 5296 | % o exception: return any errors or warnings in this structure. |
| 5297 | % |
| 5298 | */ |
| 5299 | MagickExport Image *WaveImage(const Image *image,const double amplitude, |
| 5300 | const double wave_length,ExceptionInfo *exception) |
| 5301 | { |
| 5302 | #define WaveImageTag "Wave/Image" |
| 5303 | |
cristy | fa11211 | 2010-01-04 17:48:07 +0000 | [diff] [blame] | 5304 | CacheView |
| 5305 | *wave_view; |
| 5306 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5307 | Image |
| 5308 | *wave_image; |
| 5309 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5310 | MagickBooleanType |
| 5311 | status; |
| 5312 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5313 | MagickOffsetType |
| 5314 | progress; |
| 5315 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5316 | MagickPixelPacket |
| 5317 | zero; |
| 5318 | |
| 5319 | MagickRealType |
| 5320 | *sine_map; |
| 5321 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5322 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5323 | i; |
| 5324 | |
| 5325 | ResampleFilter |
cristy | fa11211 | 2010-01-04 17:48:07 +0000 | [diff] [blame] | 5326 | **restrict resample_filter; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5327 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5328 | ssize_t |
| 5329 | y; |
| 5330 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5331 | /* |
| 5332 | Initialize wave image attributes. |
| 5333 | */ |
| 5334 | assert(image != (Image *) NULL); |
| 5335 | assert(image->signature == MagickSignature); |
| 5336 | if (image->debug != MagickFalse) |
| 5337 | (void) LogMagickEvent(TraceEvent,GetMagickModule(),"%s",image->filename); |
| 5338 | assert(exception != (ExceptionInfo *) NULL); |
| 5339 | assert(exception->signature == MagickSignature); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5340 | wave_image=CloneImage(image,image->columns,(size_t) (image->rows+2.0* |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5341 | fabs(amplitude)),MagickTrue,exception); |
| 5342 | if (wave_image == (Image *) NULL) |
| 5343 | return((Image *) NULL); |
| 5344 | if (SetImageStorageClass(wave_image,DirectClass) == MagickFalse) |
| 5345 | { |
| 5346 | InheritException(exception,&wave_image->exception); |
| 5347 | wave_image=DestroyImage(wave_image); |
| 5348 | return((Image *) NULL); |
| 5349 | } |
| 5350 | if (wave_image->background_color.opacity != OpaqueOpacity) |
| 5351 | wave_image->matte=MagickTrue; |
| 5352 | /* |
| 5353 | Allocate sine map. |
| 5354 | */ |
| 5355 | sine_map=(MagickRealType *) AcquireQuantumMemory((size_t) wave_image->columns, |
| 5356 | sizeof(*sine_map)); |
| 5357 | if (sine_map == (MagickRealType *) NULL) |
| 5358 | { |
| 5359 | wave_image=DestroyImage(wave_image); |
| 5360 | ThrowImageException(ResourceLimitError,"MemoryAllocationFailed"); |
| 5361 | } |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5362 | for (i=0; i < (ssize_t) wave_image->columns; i++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5363 | sine_map[i]=fabs(amplitude)+amplitude*sin((2*MagickPI*i)/wave_length); |
| 5364 | /* |
| 5365 | Wave image. |
| 5366 | */ |
| 5367 | status=MagickTrue; |
| 5368 | progress=0; |
| 5369 | GetMagickPixelPacket(wave_image,&zero); |
cristy | b2a11ae | 2010-02-22 00:53:36 +0000 | [diff] [blame] | 5370 | resample_filter=AcquireResampleFilterThreadSet(image, |
| 5371 | BackgroundVirtualPixelMethod,MagickTrue,exception); |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5372 | wave_view=AcquireCacheView(wave_image); |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 5373 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
| 5374 | #pragma omp parallel for schedule(dynamic,4) shared(progress,status) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5375 | #endif |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5376 | for (y=0; y < (ssize_t) wave_image->rows; y++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5377 | { |
cristy | 6ebe97c | 2010-07-03 01:17:28 +0000 | [diff] [blame] | 5378 | int |
| 5379 | id; |
| 5380 | |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5381 | MagickPixelPacket |
| 5382 | pixel; |
| 5383 | |
| 5384 | register IndexPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 5385 | *restrict indexes; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5386 | |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5387 | register ssize_t |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5388 | x; |
| 5389 | |
| 5390 | register PixelPacket |
cristy | c47d1f8 | 2009-11-26 01:44:43 +0000 | [diff] [blame] | 5391 | *restrict q; |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5392 | |
| 5393 | if (status == MagickFalse) |
| 5394 | continue; |
| 5395 | q=QueueCacheViewAuthenticPixels(wave_view,0,y,wave_image->columns,1, |
| 5396 | exception); |
| 5397 | if (q == (PixelPacket *) NULL) |
| 5398 | { |
| 5399 | status=MagickFalse; |
| 5400 | continue; |
| 5401 | } |
| 5402 | indexes=GetCacheViewAuthenticIndexQueue(wave_view); |
| 5403 | pixel=zero; |
| 5404 | id=GetOpenMPThreadId(); |
cristy | bb50337 | 2010-05-27 20:51:26 +0000 | [diff] [blame] | 5405 | for (x=0; x < (ssize_t) wave_image->columns; x++) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5406 | { |
| 5407 | (void) ResamplePixelColor(resample_filter[id],(double) x,(double) (y- |
| 5408 | sine_map[x]),&pixel); |
| 5409 | SetPixelPacket(wave_image,&pixel,q,indexes+x); |
| 5410 | q++; |
| 5411 | } |
| 5412 | if (SyncCacheViewAuthenticPixels(wave_view,exception) == MagickFalse) |
| 5413 | status=MagickFalse; |
| 5414 | if (image->progress_monitor != (MagickProgressMonitor) NULL) |
| 5415 | { |
| 5416 | MagickBooleanType |
| 5417 | proceed; |
| 5418 | |
cristy | b5d5f72 | 2009-11-04 03:03:49 +0000 | [diff] [blame] | 5419 | #if defined(MAGICKCORE_OPENMP_SUPPORT) |
cristy | 3ed852e | 2009-09-05 21:47:34 +0000 | [diff] [blame] | 5420 | #pragma omp critical (MagickCore_WaveImage) |
| 5421 | #endif |
| 5422 | proceed=SetImageProgress(image,WaveImageTag,progress++,image->rows); |
| 5423 | if (proceed == MagickFalse) |
| 5424 | status=MagickFalse; |
| 5425 | } |
| 5426 | } |
| 5427 | wave_view=DestroyCacheView(wave_view); |
| 5428 | resample_filter=DestroyResampleFilterThreadSet(resample_filter); |
| 5429 | sine_map=(MagickRealType *) RelinquishMagickMemory(sine_map); |
| 5430 | if (status == MagickFalse) |
| 5431 | wave_image=DestroyImage(wave_image); |
| 5432 | return(wave_image); |
| 5433 | } |