2 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
6 % CCCC OOO M M PPPP AAA RRRR EEEEE %
7 % C O O MM MM P P A A R R E %
8 % C O O M M M PPPP AAAAA RRRR EEE %
9 % C O O M M P A A R R E %
10 % CCCC OOO M M P A A R R EEEEE %
13 % Image Comparison Methods %
20 % Copyright 1999-2012 ImageMagick Studio LLC, a non-profit organization %
21 % dedicated to making software imaging solutions freely available. %
23 % You may not use this file except in compliance with the License. You may %
24 % obtain a copy of the License at %
26 % http://www.imagemagick.org/script/license.php %
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. %
34 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
36 % Use the compare program to mathematically and visually annotate the
37 % difference between an image and its reconstruction.
44 #include "MagickWand/studio.h"
45 #include "MagickWand/MagickWand.h"
46 #include "MagickWand/mogrify-private.h"
47 #include "MagickCore/string-private.h"
50 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
54 % C o m p a r e I m a g e C o m m a n d %
58 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
60 % CompareImagesCommand() compares two images and returns the difference between
61 % them as a distortion metric and as a new image visually annotating their
64 % The format of the CompareImagesCommand method is:
66 % MagickBooleanType CompareImagesCommand(ImageInfo *image_info,int argc,
67 % char **argv,char **metadata,ExceptionInfo *exception)
69 % A description of each parameter follows:
71 % o image_info: the image info.
73 % o argc: the number of elements in the argument vector.
75 % o argv: A text array containing the command line arguments.
77 % o metadata: any metadata is returned here.
79 % o exception: return any errors or warnings in this structure.
83 static MagickBooleanType CompareUsage(void)
91 "-debug events display copious debugging information",
92 "-help print program options",
93 "-list type print a list of supported option arguments",
94 "-log format format of debugging information",
99 "-alpha option on, activate, off, deactivate, set, opaque, copy",
100 " transparent, extract, background, or shape",
101 "-authenticate password",
102 " decipher image with this password",
103 "-channel type apply option to select image channels",
104 "-colorspace type alternate image colorspace",
105 "-compose operator set image composite operator",
106 "-compress type type of pixel compression when writing the image",
107 "-decipher filename convert cipher pixels to plain pixels",
108 "-define format:option",
109 " define one or more image format options",
110 "-density geometry horizontal and vertical density of the image",
111 "-depth value image depth",
112 "-dissimilarity-threshold value",
113 " maximum distortion for (sub)image match",
114 "-encipher filename convert plain pixels to cipher pixels",
115 "-extract geometry extract area from image",
116 "-format \"string\" output formatted image characteristics",
117 "-fuzz distance colors within this distance are considered equal",
118 "-highlight-color color",
119 " empasize pixel differences with this color",
120 "-identify identify the format and characteristics of the image",
121 "-interlace type type of image interlacing scheme",
122 "-limit type value pixel cache resource limit",
123 "-lowlight-color color",
124 " de-emphasize pixel differences with this color",
125 "-metric type measure differences between images with this metric",
126 "-monitor monitor progress",
127 "-passphrase filename get the passphrase from this file",
128 "-profile filename add, delete, or apply an image profile",
129 "-quality value JPEG/MIFF/PNG compression level",
130 "-quiet suppress all warning messages",
131 "-quantize colorspace reduce colors in this colorspace",
132 "-regard-warnings pay attention to warning messages",
133 "-respect-parentheses settings remain in effect until parenthesis boundary",
134 "-sampling-factor geometry",
135 " horizontal and vertical sampling factor",
136 "-seed value seed a new sequence of pseudo-random numbers",
137 "-set attribute value set an image attribute",
138 "-quality value JPEG/MIFF/PNG compression level",
139 "-size geometry width and height of image",
140 "-subimage-search search for subimage",
141 "-transparent-color color",
142 " transparent color",
143 "-type type image type",
144 "-verbose print detailed information about the image",
145 "-version print version information",
146 "-virtual-pixel method",
147 " virtual pixel access method",
151 (void) printf("Version: %s\n",GetMagickVersion((size_t *) NULL));
152 (void) printf("Copyright: %s\n",GetMagickCopyright());
153 (void) printf("Features: %s\n\n",GetMagickFeatures());
154 (void) printf("Usage: %s [options ...] image reconstruct difference\n",
156 (void) printf("\nImage Settings:\n");
157 for (p=settings; *p != (char *) NULL; p++)
158 (void) printf(" %s\n",*p);
159 (void) printf("\nMiscellaneous Options:\n");
160 for (p=miscellaneous; *p != (char *) NULL; p++)
161 (void) printf(" %s\n",*p);
163 "\nBy default, the image format of `file' is determined by its magic\n");
165 "number. To specify a particular image format, precede the filename\n");
167 "with an image format name and a colon (i.e. ps:image) or specify the\n");
169 "image type as the filename suffix (i.e. image.ps). Specify 'file' as\n");
170 (void) printf("'-' for standard input or output.\n");
174 WandExport MagickBooleanType CompareImagesCommand(ImageInfo *image_info,
175 int argc,char **argv,char **metadata,ExceptionInfo *exception)
177 #define DefaultDissimilarityThreshold 0.31830988618379067154
178 #define DestroyCompare() \
180 if (similarity_image != (Image *) NULL) \
181 similarity_image=DestroyImageList(similarity_image); \
182 if (difference_image != (Image *) NULL) \
183 difference_image=DestroyImageList(difference_image); \
184 DestroyImageStack(); \
185 for (i=0; i < (ssize_t) argc; i++) \
186 argv[i]=DestroyString(argv[i]); \
187 argv=(char **) RelinquishMagickMemory(argv); \
189 #define ThrowCompareException(asperity,tag,option) \
191 if (exception->severity < (asperity)) \
192 (void) ThrowMagickException(exception,GetMagickModule(),asperity,tag, \
195 return(MagickFalse); \
197 #define ThrowCompareInvalidArgumentException(option,argument) \
199 (void) ThrowMagickException(exception,GetMagickModule(),OptionError, \
200 "InvalidArgument","`%s': %s",option,argument); \
202 return(MagickFalse); \
213 dissimilarity_threshold,
224 image_stack[MaxImageStackDepth+1];
251 assert(image_info != (ImageInfo *) NULL);
252 assert(image_info->signature == MagickSignature);
253 if (image_info->debug != MagickFalse)
254 (void) LogMagickEvent(TraceEvent,GetMagickModule(),"...");
255 assert(exception != (ExceptionInfo *) NULL);
259 if ((LocaleCompare("version",option+1) == 0) ||
260 (LocaleCompare("-version",option+1) == 0))
262 (void) FormatLocaleFile(stdout,"Version: %s\n",
263 GetMagickVersion((size_t *) NULL));
264 (void) FormatLocaleFile(stdout,"Copyright: %s\n",
265 GetMagickCopyright());
266 (void) FormatLocaleFile(stdout,"Features: %s\n\n",
267 GetMagickFeatures());
272 return(CompareUsage());
273 difference_image=NewImageList();
274 similarity_image=NewImageList();
275 dissimilarity_threshold=DefaultDissimilarityThreshold;
277 format=(char *) NULL;
280 metric=UndefinedMetric;
282 option=(char *) NULL;
284 reconstruct_image=NewImageList();
285 respect_parenthesis=MagickFalse;
287 subimage_search=MagickFalse;
291 ReadCommandlLine(argc,&argv);
292 status=ExpandFilenames(&argc,&argv);
293 if (status == MagickFalse)
294 ThrowCompareException(ResourceLimitError,"MemoryAllocationFailed",
295 GetExceptionMessage(errno));
296 for (i=1; i < (ssize_t) (argc-1); i++)
299 if (LocaleCompare(option,"(") == 0)
301 FireImageStack(MagickTrue,MagickTrue,pend);
302 if (k == MaxImageStackDepth)
303 ThrowCompareException(OptionError,"ParenthesisNestedTooDeeply",
308 if (LocaleCompare(option,")") == 0)
310 FireImageStack(MagickTrue,MagickTrue,MagickTrue);
312 ThrowCompareException(OptionError,"UnableToParseExpression",option);
316 if (IsCommandOption(option) == MagickFalse)
324 FireImageStack(MagickFalse,MagickFalse,pend);
326 if ((LocaleCompare(filename,"--") == 0) && (i < (ssize_t) (argc-1)))
328 images=ReadImages(image_info,filename,exception);
329 status&=(images != (Image *) NULL) &&
330 (exception->severity < ErrorException);
331 if (images == (Image *) NULL)
333 AppendImageStack(images);
336 pend=image != (Image *) NULL ? MagickTrue : MagickFalse;
341 if (LocaleCompare("alpha",option+1) == 0)
349 if (i == (ssize_t) argc)
350 ThrowCompareException(OptionError,"MissingArgument",option);
351 type=ParseCommandOption(MagickAlphaOptions,MagickFalse,argv[i]);
353 ThrowCompareException(OptionError,"UnrecognizedAlphaChannelType",
357 if (LocaleCompare("authenticate",option+1) == 0)
362 if (i == (ssize_t) argc)
363 ThrowCompareException(OptionError,"MissingArgument",option);
366 ThrowCompareException(OptionError,"UnrecognizedOption",option);
370 if (LocaleCompare("cache",option+1) == 0)
375 if (i == (ssize_t) argc)
376 ThrowCompareException(OptionError,"MissingArgument",option);
377 if (IsGeometry(argv[i]) == MagickFalse)
378 ThrowCompareInvalidArgumentException(option,argv[i]);
381 if (LocaleCompare("channel",option+1) == 0)
389 if (i == (ssize_t) (argc-1))
390 ThrowCompareException(OptionError,"MissingArgument",option);
391 channel=ParseChannelOption(argv[i]);
393 ThrowCompareException(OptionError,"UnrecognizedChannelType",
395 SetPixelChannelMapMask(image,(ChannelType) channel);
398 if (LocaleCompare("colorspace",option+1) == 0)
406 if (i == (ssize_t) (argc-1))
407 ThrowCompareException(OptionError,"MissingArgument",option);
408 colorspace=ParseCommandOption(MagickColorspaceOptions,MagickFalse,
411 ThrowCompareException(OptionError,"UnrecognizedColorspace",
415 if (LocaleCompare("compose",option+1) == 0)
423 if (i == (ssize_t) argc)
424 ThrowCompareException(OptionError,"MissingArgument",option);
425 compose=ParseCommandOption(MagickComposeOptions,MagickFalse,
428 ThrowCompareException(OptionError,"UnrecognizedComposeOperator",
432 if (LocaleCompare("compress",option+1) == 0)
440 if (i == (ssize_t) (argc-1))
441 ThrowCompareException(OptionError,"MissingArgument",option);
442 compress=ParseCommandOption(MagickCompressOptions,MagickFalse,
445 ThrowCompareException(OptionError,"UnrecognizedImageCompression",
449 if (LocaleCompare("concurrent",option+1) == 0)
451 ThrowCompareException(OptionError,"UnrecognizedOption",option)
455 if (LocaleCompare("debug",option+1) == 0)
463 if (i == (ssize_t) argc)
464 ThrowCompareException(OptionError,"MissingArgument",option);
465 event_mask=SetLogEventMask(argv[i]);
466 if (event_mask == UndefinedEvents)
467 ThrowCompareException(OptionError,"UnrecognizedEventType",
471 if (LocaleCompare("decipher",option+1) == 0)
476 if (i == (ssize_t) (argc-1))
477 ThrowCompareException(OptionError,"MissingArgument",option);
480 if (LocaleCompare("define",option+1) == 0)
483 if (i == (ssize_t) argc)
484 ThrowCompareException(OptionError,"MissingArgument",option);
490 define=GetImageOption(image_info,argv[i]);
491 if (define == (const char *) NULL)
492 ThrowCompareException(OptionError,"NoSuchOption",argv[i]);
497 if (LocaleCompare("density",option+1) == 0)
502 if (i == (ssize_t) argc)
503 ThrowCompareException(OptionError,"MissingArgument",option);
504 if (IsGeometry(argv[i]) == MagickFalse)
505 ThrowCompareInvalidArgumentException(option,argv[i]);
508 if (LocaleCompare("depth",option+1) == 0)
513 if (i == (ssize_t) argc)
514 ThrowCompareException(OptionError,"MissingArgument",option);
515 if (IsGeometry(argv[i]) == MagickFalse)
516 ThrowCompareInvalidArgumentException(option,argv[i]);
519 if (LocaleCompare("dissimilarity-threshold",option+1) == 0)
524 if (i == (ssize_t) argc)
525 ThrowCompareException(OptionError,"MissingArgument",option);
526 if (IsGeometry(argv[i]) == MagickFalse)
527 ThrowCompareInvalidArgumentException(option,argv[i]);
529 dissimilarity_threshold=DefaultDissimilarityThreshold;
531 dissimilarity_threshold=StringToDouble(argv[i],(char **) NULL);
534 if (LocaleCompare("duration",option+1) == 0)
539 if (i == (ssize_t) (argc-1))
540 ThrowCompareException(OptionError,"MissingArgument",option);
541 if (IsGeometry(argv[i]) == MagickFalse)
542 ThrowCompareInvalidArgumentException(option,argv[i]);
545 ThrowCompareException(OptionError,"UnrecognizedOption",option)
549 if (LocaleCompare("encipher",option+1) == 0)
554 if (i == (ssize_t) (argc-1))
555 ThrowCompareException(OptionError,"MissingArgument",option);
558 if (LocaleCompare("extract",option+1) == 0)
563 if (i == (ssize_t) (argc-1))
564 ThrowCompareException(OptionError,"MissingArgument",option);
565 if (IsGeometry(argv[i]) == MagickFalse)
566 ThrowCompareInvalidArgumentException(option,argv[i]);
569 ThrowCompareException(OptionError,"UnrecognizedOption",option)
573 if (LocaleCompare("format",option+1) == 0)
578 if (i == (ssize_t) argc)
579 ThrowCompareException(OptionError,"MissingArgument",option);
583 if (LocaleCompare("fuzz",option+1) == 0)
588 if (i == (ssize_t) (argc-1))
589 ThrowCompareException(OptionError,"MissingArgument",option);
590 if (IsGeometry(argv[i]) == MagickFalse)
591 ThrowCompareInvalidArgumentException(option,argv[i]);
594 ThrowCompareException(OptionError,"UnrecognizedOption",option)
598 if ((LocaleCompare("help",option+1) == 0) ||
599 (LocaleCompare("-help",option+1) == 0))
600 return(CompareUsage());
601 if (LocaleCompare("highlight-color",option+1) == 0)
606 if (i == (ssize_t) (argc-1))
607 ThrowCompareException(OptionError,"MissingArgument",option);
610 ThrowCompareException(OptionError,"UnrecognizedOption",option)
614 if (LocaleCompare("identify",option+1) == 0)
616 if (LocaleCompare("interlace",option+1) == 0)
624 if (i == (ssize_t) argc)
625 ThrowCompareException(OptionError,"MissingArgument",option);
626 interlace=ParseCommandOption(MagickInterlaceOptions,MagickFalse,
629 ThrowCompareException(OptionError,"UnrecognizedInterlaceType",
633 ThrowCompareException(OptionError,"UnrecognizedOption",option)
637 if (LocaleCompare("limit",option+1) == 0)
651 if (i == (ssize_t) argc)
652 ThrowCompareException(OptionError,"MissingArgument",option);
653 resource=ParseCommandOption(MagickResourceOptions,MagickFalse,
656 ThrowCompareException(OptionError,"UnrecognizedResourceType",
659 if (i == (ssize_t) argc)
660 ThrowCompareException(OptionError,"MissingArgument",option);
661 value=StringToDouble(argv[i],&p);
663 if ((p == argv[i]) && (LocaleCompare("unlimited",argv[i]) != 0))
664 ThrowCompareInvalidArgumentException(option,argv[i]);
667 if (LocaleCompare("list",option+1) == 0)
675 if (i == (ssize_t) argc)
676 ThrowCompareException(OptionError,"MissingArgument",option);
677 list=ParseCommandOption(MagickListOptions,MagickFalse,argv[i]);
679 ThrowCompareException(OptionError,"UnrecognizedListType",argv[i]);
680 status=MogrifyImageInfo(image_info,(int) (i-j+1),(const char **)
683 return(status != 0 ? MagickFalse : MagickTrue);
685 if (LocaleCompare("log",option+1) == 0)
690 if ((i == (ssize_t) argc) || (strchr(argv[i],'%') == (char *) NULL))
691 ThrowCompareException(OptionError,"MissingArgument",option);
694 if (LocaleCompare("lowlight-color",option+1) == 0)
699 if (i == (ssize_t) (argc-1))
700 ThrowCompareException(OptionError,"MissingArgument",option);
703 ThrowCompareException(OptionError,"UnrecognizedOption",option)
707 if (LocaleCompare("matte",option+1) == 0)
709 if (LocaleCompare("metric",option+1) == 0)
717 if (i == (ssize_t) argc)
718 ThrowCompareException(OptionError,"MissingArgument",option);
719 type=ParseCommandOption(MagickMetricOptions,MagickTrue,argv[i]);
721 ThrowCompareException(OptionError,"UnrecognizedMetricType",
723 metric=(MetricType) type;
726 if (LocaleCompare("monitor",option+1) == 0)
728 ThrowCompareException(OptionError,"UnrecognizedOption",option)
732 if (LocaleCompare("passphrase",option+1) == 0)
737 if (i == (ssize_t) argc)
738 ThrowCompareException(OptionError,"MissingArgument",option);
741 if (LocaleCompare("profile",option+1) == 0)
744 if (i == (ssize_t) (argc-1))
745 ThrowCompareException(OptionError,"MissingArgument",option);
748 ThrowCompareException(OptionError,"UnrecognizedOption",option)
752 if (LocaleCompare("quality",option+1) == 0)
757 if (i == (ssize_t) (argc-1))
758 ThrowCompareException(OptionError,"MissingArgument",option);
759 if (IsGeometry(argv[i]) == MagickFalse)
760 ThrowCompareInvalidArgumentException(option,argv[i]);
763 if (LocaleCompare("quantize",option+1) == 0)
771 if (i == (ssize_t) (argc-1))
772 ThrowCompareException(OptionError,"MissingArgument",option);
773 colorspace=ParseCommandOption(MagickColorspaceOptions,
774 MagickFalse,argv[i]);
776 ThrowCompareException(OptionError,"UnrecognizedColorspace",
780 if (LocaleCompare("quiet",option+1) == 0)
782 ThrowCompareException(OptionError,"UnrecognizedOption",option)
786 if (LocaleCompare("regard-warnings",option+1) == 0)
788 if (LocaleNCompare("respect-parentheses",option+1,17) == 0)
790 respect_parenthesis=(*option == '-') ? MagickTrue : MagickFalse;
793 ThrowCompareException(OptionError,"UnrecognizedOption",option)
797 if (LocaleCompare("sampling-factor",option+1) == 0)
802 if (i == (ssize_t) argc)
803 ThrowCompareException(OptionError,"MissingArgument",option);
804 if (IsGeometry(argv[i]) == MagickFalse)
805 ThrowCompareInvalidArgumentException(option,argv[i]);
808 if (LocaleCompare("seed",option+1) == 0)
813 if (i == (ssize_t) (argc-1))
814 ThrowCompareException(OptionError,"MissingArgument",option);
815 if (IsGeometry(argv[i]) == MagickFalse)
816 ThrowCompareInvalidArgumentException(option,argv[i]);
819 if (LocaleCompare("set",option+1) == 0)
822 if (i == (ssize_t) argc)
823 ThrowCompareException(OptionError,"MissingArgument",option);
827 if (i == (ssize_t) argc)
828 ThrowCompareException(OptionError,"MissingArgument",option);
831 if (LocaleCompare("size",option+1) == 0)
836 if (i == (ssize_t) argc)
837 ThrowCompareException(OptionError,"MissingArgument",option);
838 if (IsGeometry(argv[i]) == MagickFalse)
839 ThrowCompareInvalidArgumentException(option,argv[i]);
842 if (LocaleCompare("subimage-search",option+1) == 0)
846 subimage_search=MagickFalse;
849 subimage_search=MagickTrue;
852 if (LocaleCompare("synchronize",option+1) == 0)
854 ThrowCompareException(OptionError,"UnrecognizedOption",option)
858 if (LocaleCompare("taint",option+1) == 0)
860 if (LocaleCompare("transparent-color",option+1) == 0)
865 if (i == (ssize_t) (argc-1))
866 ThrowCompareException(OptionError,"MissingArgument",option);
869 if (LocaleCompare("type",option+1) == 0)
877 if (i == (ssize_t) argc)
878 ThrowCompareException(OptionError,"MissingArgument",option);
879 type=ParseCommandOption(MagickTypeOptions,MagickFalse,argv[i]);
881 ThrowCompareException(OptionError,"UnrecognizedImageType",
885 ThrowCompareException(OptionError,"UnrecognizedOption",option)
889 if (LocaleCompare("verbose",option+1) == 0)
891 if ((LocaleCompare("version",option+1) == 0) ||
892 (LocaleCompare("-version",option+1) == 0))
894 (void) FormatLocaleFile(stdout,"Version: %s\n",
895 GetMagickVersion((size_t *) NULL));
896 (void) FormatLocaleFile(stdout,"Copyright: %s\n",
897 GetMagickCopyright());
898 (void) FormatLocaleFile(stdout,"Features: %s\n\n",
899 GetMagickFeatures());
902 if (LocaleCompare("virtual-pixel",option+1) == 0)
910 if (i == (ssize_t) (argc-1))
911 ThrowCompareException(OptionError,"MissingArgument",option);
912 method=ParseCommandOption(MagickVirtualPixelOptions,MagickFalse,
915 ThrowCompareException(OptionError,
916 "UnrecognizedVirtualPixelMethod",argv[i]);
919 ThrowCompareException(OptionError,"UnrecognizedOption",option)
924 ThrowCompareException(OptionError,"UnrecognizedOption",option)
926 fire=(GetCommandOptionFlags(MagickCommandOptions,MagickFalse,option) &
927 FireOptionFlag) == 0 ? MagickFalse : MagickTrue;
928 if (fire != MagickFalse)
929 FireImageStack(MagickTrue,MagickTrue,MagickTrue);
932 ThrowCompareException(OptionError,"UnbalancedParenthesis",argv[i]);
933 if (i-- != (ssize_t) (argc-1))
934 ThrowCompareException(OptionError,"MissingAnImageFilename",argv[i]);
935 if ((image == (Image *) NULL) || (GetImageListLength(image) < 2))
936 ThrowCompareException(OptionError,"MissingAnImageFilename",argv[i]);
937 FinalizeImageSettings(image_info,image,MagickTrue);
938 if ((image == (Image *) NULL) || (GetImageListLength(image) < 2))
939 ThrowCompareException(OptionError,"MissingAnImageFilename",argv[i]);
940 image=GetImageFromList(image,0);
941 reconstruct_image=GetImageFromList(image,1);
942 if (subimage_search != MagickFalse)
944 similarity_image=SimilarityImage(image,reconstruct_image,metric,&offset,
945 &similarity_metric,exception);
946 if (similarity_metric > dissimilarity_threshold)
947 ThrowCompareException(ImageError,"ImagesTooDissimilar",image->filename);
949 if ((reconstruct_image->columns == image->columns) &&
950 (reconstruct_image->rows == image->rows))
951 difference_image=CompareImages(image,reconstruct_image,metric,&distortion,
954 if (similarity_image == (Image *) NULL)
955 ThrowCompareException(OptionError,"ImageWidthsOrHeightsDiffer",
963 Determine if reconstructed image is a subimage of the image.
965 composite_image=CloneImage(image,0,0,MagickTrue,exception);
966 if (composite_image == (Image *) NULL)
967 difference_image=CompareImages(image,reconstruct_image,metric,
968 &distortion,exception);
971 (void) CompositeImage(composite_image,CopyCompositeOp,
972 reconstruct_image,offset.x,offset.y,exception);
973 difference_image=CompareImages(image,composite_image,metric,
974 &distortion,exception);
975 if (difference_image != (Image *) NULL)
977 difference_image->page.x=offset.x;
978 difference_image->page.y=offset.y;
980 composite_image=DestroyImage(composite_image);
982 if (difference_image != (Image *) NULL)
984 AppendImageToList(&difference_image,similarity_image);
985 similarity_image=(Image *) NULL;
988 if (difference_image == (Image *) NULL)
992 if (image_info->verbose != MagickFalse)
993 (void) IsImagesEqual(image,reconstruct_image,exception);
994 if (*difference_image->magick == '\0')
995 (void) CopyMagickString(difference_image->magick,image->magick,
997 if (image_info->verbose == MagickFalse)
1001 case FuzzErrorMetric:
1002 case MeanAbsoluteErrorMetric:
1003 case MeanSquaredErrorMetric:
1004 case RootMeanSquaredErrorMetric:
1005 case PeakAbsoluteErrorMetric:
1007 (void) FormatLocaleFile(stderr,"%g (%g)",QuantumRange*distortion,
1008 (double) distortion);
1009 if ((reconstruct_image->columns != image->columns) ||
1010 (reconstruct_image->rows != image->rows))
1011 (void) FormatLocaleFile(stderr," @ %.20g,%.20g",(double)
1012 difference_image->page.x,(double) difference_image->page.y);
1013 (void) FormatLocaleFile(stderr,"\n");
1016 case AbsoluteErrorMetric:
1017 case NormalizedCrossCorrelationErrorMetric:
1018 case PeakSignalToNoiseRatioMetric:
1020 (void) FormatLocaleFile(stderr,"%g",distortion);
1021 if ((reconstruct_image->columns != image->columns) ||
1022 (reconstruct_image->rows != image->rows))
1023 (void) FormatLocaleFile(stderr," @ %.20g,%.20g",(double)
1024 difference_image->page.x,(double) difference_image->page.y);
1025 (void) FormatLocaleFile(stderr,"\n");
1028 case MeanErrorPerPixelMetric:
1030 (void) FormatLocaleFile(stderr,"%g (%g, %g)",distortion,
1031 image->error.normalized_mean_error,
1032 image->error.normalized_maximum_error);
1033 if ((reconstruct_image->columns != image->columns) ||
1034 (reconstruct_image->rows != image->rows))
1035 (void) FormatLocaleFile(stderr," @ %.20g,%.20g",(double)
1036 difference_image->page.x,(double) difference_image->page.y);
1037 (void) FormatLocaleFile(stderr,"\n");
1040 case UndefinedMetric:
1047 *channel_distortion;
1049 channel_distortion=GetImageDistortions(image,reconstruct_image,
1051 (void) FormatLocaleFile(stderr,"Image: %s\n",image->filename);
1052 if ((reconstruct_image->columns != image->columns) ||
1053 (reconstruct_image->rows != image->rows))
1054 (void) FormatLocaleFile(stderr,"Offset: %.20g,%.20g\n",(double)
1055 difference_image->page.x,(double) difference_image->page.y);
1056 (void) FormatLocaleFile(stderr," Channel distortion: %s\n",
1057 CommandOptionToMnemonic(MagickMetricOptions,(ssize_t) metric));
1060 case FuzzErrorMetric:
1061 case MeanAbsoluteErrorMetric:
1062 case MeanSquaredErrorMetric:
1063 case RootMeanSquaredErrorMetric:
1064 case PeakAbsoluteErrorMetric:
1066 switch (image->colorspace)
1071 (void) FormatLocaleFile(stderr," red: %g (%g)\n",
1072 QuantumRange*channel_distortion[RedPixelChannel],
1073 channel_distortion[RedPixelChannel]);
1074 (void) FormatLocaleFile(stderr," green: %g (%g)\n",
1075 QuantumRange*channel_distortion[GreenPixelChannel],
1076 channel_distortion[GreenPixelChannel]);
1077 (void) FormatLocaleFile(stderr," blue: %g (%g)\n",
1078 QuantumRange*channel_distortion[BluePixelChannel],
1079 channel_distortion[BluePixelChannel]);
1080 if (image->matte != MagickFalse)
1081 (void) FormatLocaleFile(stderr," alpha: %g (%g)\n",
1082 QuantumRange*channel_distortion[AlphaPixelChannel],
1083 channel_distortion[AlphaPixelChannel]);
1086 case CMYKColorspace:
1088 (void) FormatLocaleFile(stderr," cyan: %g (%g)\n",
1089 QuantumRange*channel_distortion[CyanPixelChannel],
1090 channel_distortion[CyanPixelChannel]);
1091 (void) FormatLocaleFile(stderr," magenta: %g (%g)\n",
1092 QuantumRange*channel_distortion[MagentaPixelChannel],
1093 channel_distortion[MagentaPixelChannel]);
1094 (void) FormatLocaleFile(stderr," yellow: %g (%g)\n",
1095 QuantumRange*channel_distortion[YellowPixelChannel],
1096 channel_distortion[YellowPixelChannel]);
1097 (void) FormatLocaleFile(stderr," black: %g (%g)\n",
1098 QuantumRange*channel_distortion[BlackPixelChannel],
1099 channel_distortion[BlackPixelChannel]);
1100 if (image->matte != MagickFalse)
1101 (void) FormatLocaleFile(stderr," alpha: %g (%g)\n",
1102 QuantumRange*channel_distortion[AlphaPixelChannel],
1103 channel_distortion[AlphaPixelChannel]);
1106 case GRAYColorspace:
1108 (void) FormatLocaleFile(stderr," gray: %g (%g)\n",
1109 QuantumRange*channel_distortion[GrayPixelChannel],
1110 channel_distortion[GrayPixelChannel]);
1111 if (image->matte != MagickFalse)
1112 (void) FormatLocaleFile(stderr," alpha: %g (%g)\n",
1113 QuantumRange*channel_distortion[AlphaPixelChannel],
1114 channel_distortion[AlphaPixelChannel]);
1118 (void) FormatLocaleFile(stderr," all: %g (%g)\n",
1119 QuantumRange*channel_distortion[MaxPixelChannels],
1120 channel_distortion[MaxPixelChannels]);
1123 case AbsoluteErrorMetric:
1124 case NormalizedCrossCorrelationErrorMetric:
1125 case PeakSignalToNoiseRatioMetric:
1127 switch (image->colorspace)
1132 (void) FormatLocaleFile(stderr," red: %g\n",
1133 channel_distortion[RedPixelChannel]);
1134 (void) FormatLocaleFile(stderr," green: %g\n",
1135 channel_distortion[GreenPixelChannel]);
1136 (void) FormatLocaleFile(stderr," blue: %g\n",
1137 channel_distortion[BluePixelChannel]);
1138 if (image->matte != MagickFalse)
1139 (void) FormatLocaleFile(stderr," alpha: %g\n",
1140 channel_distortion[AlphaPixelChannel]);
1143 case CMYKColorspace:
1145 (void) FormatLocaleFile(stderr," cyan: %g\n",
1146 channel_distortion[CyanPixelChannel]);
1147 (void) FormatLocaleFile(stderr," magenta: %g\n",
1148 channel_distortion[MagentaPixelChannel]);
1149 (void) FormatLocaleFile(stderr," yellow: %g\n",
1150 channel_distortion[YellowPixelChannel]);
1151 (void) FormatLocaleFile(stderr," black: %g\n",
1152 channel_distortion[BlackPixelChannel]);
1153 if (image->matte != MagickFalse)
1154 (void) FormatLocaleFile(stderr," alpha: %g\n",
1155 channel_distortion[AlphaPixelChannel]);
1158 case GRAYColorspace:
1160 (void) FormatLocaleFile(stderr," gray: %g\n",
1161 channel_distortion[GrayPixelChannel]);
1162 if (image->matte != MagickFalse)
1163 (void) FormatLocaleFile(stderr," alpha: %g\n",
1164 channel_distortion[AlphaPixelChannel]);
1168 (void) FormatLocaleFile(stderr," all: %g\n",
1169 channel_distortion[MaxPixelChannels]);
1172 case MeanErrorPerPixelMetric:
1174 (void) FormatLocaleFile(stderr," %g (%g, %g)\n",
1175 channel_distortion[MaxPixelChannels],
1176 image->error.normalized_mean_error,
1177 image->error.normalized_maximum_error);
1180 case UndefinedMetric:
1183 channel_distortion=(double *) RelinquishMagickMemory(
1184 channel_distortion);
1186 status&=WriteImages(image_info,difference_image,argv[argc-1],exception);
1187 if ((metadata != (char **) NULL) && (format != (char *) NULL))
1192 text=InterpretImageProperties(image_info,difference_image,format,
1194 if (text == (char *) NULL)
1195 ThrowCompareException(ResourceLimitError,"MemoryAllocationFailed",
1196 GetExceptionMessage(errno));
1197 (void) ConcatenateString(&(*metadata),text);
1198 (void) ConcatenateString(&(*metadata),"\n");
1199 text=DestroyString(text);
1201 difference_image=DestroyImageList(difference_image);
1204 return(status != 0 ? MagickTrue : MagickFalse);