/* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % CCCC OOO M M PPPP AAA RRRR EEEEE % % C O O MM MM P P A A R R E % % C O O M M M PPPP AAAAA RRRR EEE % % C O O M M P A A R R E % % CCCC OOO M M P A A R R EEEEE % % % % % % Image Comparison Methods % % % % Software Design % % John Cristy % % December 2003 % % % % % % Copyright 1999-2011 ImageMagick Studio LLC, a non-profit organization % % dedicated to making software imaging solutions freely available. % % % % You may not use this file except in compliance with the License. You may % % obtain a copy of the License at % % % % http://www.imagemagick.org/script/license.php % % % % Unless required by applicable law or agreed to in writing, software % % distributed under the License is distributed on an "AS IS" BASIS, % % WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. % % See the License for the specific language governing permissions and % % limitations under the License. % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % Use the compare program to mathematically and visually annotate the % difference between an image and its reconstruction. % */ /* Include declarations. */ #include "wand/studio.h" #include "wand/MagickWand.h" #include "wand/mogrify-private.h" #include "magick/string-private.h" /* %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % % % % % % C o m p a r e I m a g e C o m m a n d % % % % % % % %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% % % CompareImageCommand() compares two images and returns the difference between % them as a distortion metric and as a new image visually annotating their % differences. % % The format of the CompareImageCommand method is: % % MagickBooleanType CompareImageCommand(ImageInfo *image_info,int argc, % char **argv,char **metadata,ExceptionInfo *exception) % % A description of each parameter follows: % % o image_info: the image info. % % o argc: the number of elements in the argument vector. % % o argv: A text array containing the command line arguments. % % o metadata: any metadata is returned here. % % o exception: return any errors or warnings in this structure. % */ static MagickBooleanType CompareUsage(void) { const char **p; static const char *miscellaneous[]= { "-debug events display copious debugging information", "-help print program options", "-list type print a list of supported option arguments", "-log format format of debugging information", (char *) NULL }, *settings[]= { "-alpha option on, activate, off, deactivate, set, opaque, copy", " transparent, extract, background, or shape", "-authenticate password", " decipher image with this password", "-channel type apply option to select image channels", "-colorspace type alternate image colorspace", "-compose operator set image composite operator", "-compress type type of pixel compression when writing the image", "-decipher filename convert cipher pixels to plain pixels", "-define format:option", " define one or more image format options", "-density geometry horizontal and vertical density of the image", "-depth value image depth", "-dissimilarity-threshold value", " maximum distortion for (sub)image match", "-encipher filename convert plain pixels to cipher pixels", "-extract geometry extract area from image", "-format \"string\" output formatted image characteristics", "-fuzz distance colors within this distance are considered equal", "-highlight-color color", " empasize pixel differences with this color", "-identify identify the format and characteristics of the image", "-interlace type type of image interlacing scheme", "-limit type value pixel cache resource limit", "-lowlight-color color", " de-emphasize pixel differences with this color", "-metric type measure differences between images with this metric", "-monitor monitor progress", "-passphrase filename get the passphrase from this file", "-profile filename add, delete, or apply an image profile", "-quality value JPEG/MIFF/PNG compression level", "-quiet suppress all warning messages", "-quantize colorspace reduce colors in this colorspace", "-regard-warnings pay attention to warning messages", "-respect-parentheses settings remain in effect until parenthesis boundary", "-sampling-factor geometry", " horizontal and vertical sampling factor", "-seed value seed a new sequence of pseudo-random numbers", "-set attribute value set an image attribute", "-quality value JPEG/MIFF/PNG compression level", "-size geometry width and height of image", "-subimage-search search for subimage", "-transparent-color color", " transparent color", "-type type image type", "-verbose print detailed information about the image", "-version print version information", "-virtual-pixel method", " virtual pixel access method", (char *) NULL }; (void) printf("Version: %s\n",GetMagickVersion((size_t *) NULL)); (void) printf("Copyright: %s\n",GetMagickCopyright()); (void) printf("Features: %s\n\n",GetMagickFeatures()); (void) printf("Usage: %s [options ...] image reconstruct difference\n", GetClientName()); (void) printf("\nImage Settings:\n"); for (p=settings; *p != (char *) NULL; p++) (void) printf(" %s\n",*p); (void) printf("\nMiscellaneous Options:\n"); for (p=miscellaneous; *p != (char *) NULL; p++) (void) printf(" %s\n",*p); (void) printf( "\nBy default, the image format of `file' is determined by its magic\n"); (void) printf( "number. To specify a particular image format, precede the filename\n"); (void) printf( "with an image format name and a colon (i.e. ps:image) or specify the\n"); (void) printf( "image type as the filename suffix (i.e. image.ps). Specify 'file' as\n"); (void) printf("'-' for standard input or output.\n"); return(MagickFalse); } WandExport MagickBooleanType CompareImageCommand(ImageInfo *image_info, int argc,char **argv,char **metadata,ExceptionInfo *exception) { #define DefaultDissimilarityThreshold 0.31830988618379067154 #define DestroyCompare() \ { \ if (similarity_image != (Image *) NULL) \ similarity_image=DestroyImageList(similarity_image); \ if (difference_image != (Image *) NULL) \ difference_image=DestroyImageList(difference_image); \ DestroyImageStack(); \ for (i=0; i < (ssize_t) argc; i++) \ argv[i]=DestroyString(argv[i]); \ argv=(char **) RelinquishMagickMemory(argv); \ } #define ThrowCompareException(asperity,tag,option) \ { \ if (exception->severity < (asperity)) \ (void) ThrowMagickException(exception,GetMagickModule(),asperity,tag, \ "`%s'",option); \ DestroyCompare(); \ return(MagickFalse); \ } #define ThrowCompareInvalidArgumentException(option,argument) \ { \ (void) ThrowMagickException(exception,GetMagickModule(),OptionError, \ "InvalidArgument","`%s': %s",option,argument); \ DestroyCompare(); \ return(MagickFalse); \ } char *filename, *option; const char *format; ChannelType channels; double dissimilarity_threshold, distortion, similarity_metric; Image *difference_image, *image, *reconstruct_image, *similarity_image; ImageStack image_stack[MaxImageStackDepth+1]; MagickBooleanType fire, pend, subimage_search; MagickStatusType status; MetricType metric; RectangleInfo offset; register ssize_t i; ssize_t j, k; /* Set defaults. */ assert(image_info != (ImageInfo *) NULL); assert(image_info->signature == MagickSignature); if (image_info->debug != MagickFalse) (void) LogMagickEvent(TraceEvent,GetMagickModule(),"..."); assert(exception != (ExceptionInfo *) NULL); if (argc == 2) { option=argv[1]; if ((LocaleCompare("version",option+1) == 0) || (LocaleCompare("-version",option+1) == 0)) { (void) fprintf(stdout,"Version: %s\n", GetMagickVersion((size_t *) NULL)); (void) fprintf(stdout,"Copyright: %s\n",GetMagickCopyright()); (void) fprintf(stdout,"Features: %s\n\n",GetMagickFeatures()); return(MagickFalse); } } if (argc < 3) return(CompareUsage()); channels=AllChannels; difference_image=NewImageList(); similarity_image=NewImageList(); dissimilarity_threshold=DefaultDissimilarityThreshold; distortion=0.0; format=(char *) NULL; j=1; k=0; metric=UndefinedMetric; NewImageStack(); option=(char *) NULL; pend=MagickFalse; reconstruct_image=NewImageList(); status=MagickTrue; subimage_search=MagickFalse; /* Compare an image. */ ReadCommandlLine(argc,&argv); status=ExpandFilenames(&argc,&argv); if (status == MagickFalse) ThrowCompareException(ResourceLimitError,"MemoryAllocationFailed", GetExceptionMessage(errno)); for (i=1; i < (ssize_t) (argc-1); i++) { option=argv[i]; if (LocaleCompare(option,"(") == 0) { FireImageStack(MagickTrue,MagickTrue,pend); if (k == MaxImageStackDepth) ThrowCompareException(OptionError,"ParenthesisNestedTooDeeply", option); PushImageStack(); continue; } if (LocaleCompare(option,")") == 0) { FireImageStack(MagickTrue,MagickTrue,MagickTrue); if (k == 0) ThrowCompareException(OptionError,"UnableToParseExpression",option); PopImageStack(); continue; } if (IsMagickOption(option) == MagickFalse) { Image *images; /* Read input image. */ FireImageStack(MagickFalse,MagickFalse,pend); filename=argv[i]; if ((LocaleCompare(filename,"--") == 0) && (i < (ssize_t) (argc-1))) filename=argv[++i]; (void) CopyMagickString(image_info->filename,filename,MaxTextExtent); images=ReadImages(image_info,exception); status&=(images != (Image *) NULL) && (exception->severity < ErrorException); if (images == (Image *) NULL) continue; AppendImageStack(images); continue; } pend=image != (Image *) NULL ? MagickTrue : MagickFalse; switch (*(option+1)) { case 'a': { if (LocaleCompare("alpha",option+1) == 0) { ssize_t type; if (*option == '+') break; i++; if (i == (ssize_t) argc) ThrowCompareException(OptionError,"MissingArgument",option); type=ParseMagickOption(MagickAlphaOptions,MagickFalse,argv[i]); if (type < 0) ThrowCompareException(OptionError,"UnrecognizedAlphaChannelType", argv[i]); break; } if (LocaleCompare("authenticate",option+1) == 0) { if (*option == '+') break; i++; if (i == (ssize_t) argc) ThrowCompareException(OptionError,"MissingArgument",option); break; } ThrowCompareException(OptionError,"UnrecognizedOption",option); } case 'c': { if (LocaleCompare("cache",option+1) == 0) { if (*option == '+') break; i++; if (i == (ssize_t) argc) ThrowCompareException(OptionError,"MissingArgument",option); if (IsGeometry(argv[i]) == MagickFalse) ThrowCompareInvalidArgumentException(option,argv[i]); break; } if (LocaleCompare("channel",option+1) == 0) { ssize_t channel; if (*option == '+') break; i++; if (i == (ssize_t) (argc-1)) ThrowCompareException(OptionError,"MissingArgument",option); channel=ParseChannelOption(argv[i]); if (channel < 0) ThrowCompareException(OptionError,"UnrecognizedChannelType", argv[i]); channels=(ChannelType) channel; break; } if (LocaleCompare("colorspace",option+1) == 0) { ssize_t colorspace; if (*option == '+') break; i++; if (i == (ssize_t) (argc-1)) ThrowCompareException(OptionError,"MissingArgument",option); colorspace=ParseMagickOption(MagickColorspaceOptions,MagickFalse, argv[i]); if (colorspace < 0) ThrowCompareException(OptionError,"UnrecognizedColorspace", argv[i]); break; } if (LocaleCompare("compose",option+1) == 0) { ssize_t compose; if (*option == '+') break; i++; if (i == (ssize_t) argc) ThrowCompareException(OptionError,"MissingArgument",option); compose=ParseMagickOption(MagickComposeOptions,MagickFalse, argv[i]); if (compose < 0) ThrowCompareException(OptionError,"UnrecognizedComposeOperator", argv[i]); break; } if (LocaleCompare("compress",option+1) == 0) { ssize_t compress; if (*option == '+') break; i++; if (i == (ssize_t) (argc-1)) ThrowCompareException(OptionError,"MissingArgument",option); compress=ParseMagickOption(MagickCompressOptions,MagickFalse, argv[i]); if (compress < 0) ThrowCompareException(OptionError,"UnrecognizedImageCompression", argv[i]); break; } if (LocaleCompare("concurrent",option+1) == 0) break; ThrowCompareException(OptionError,"UnrecognizedOption",option) } case 'd': { if (LocaleCompare("debug",option+1) == 0) { LogEventType event_mask; if (*option == '+') break; i++; if (i == (ssize_t) argc) ThrowCompareException(OptionError,"MissingArgument",option); event_mask=SetLogEventMask(argv[i]); if (event_mask == UndefinedEvents) ThrowCompareException(OptionError,"UnrecognizedEventType", argv[i]); break; } if (LocaleCompare("decipher",option+1) == 0) { if (*option == '+') break; i++; if (i == (ssize_t) (argc-1)) ThrowCompareException(OptionError,"MissingArgument",option); break; } if (LocaleCompare("define",option+1) == 0) { i++; if (i == (ssize_t) argc) ThrowCompareException(OptionError,"MissingArgument",option); if (*option == '+') { const char *define; define=GetImageOption(image_info,argv[i]); if (define == (const char *) NULL) ThrowCompareException(OptionError,"NoSuchOption",argv[i]); break; } break; } if (LocaleCompare("density",option+1) == 0) { if (*option == '+') break; i++; if (i == (ssize_t) argc) ThrowCompareException(OptionError,"MissingArgument",option); if (IsGeometry(argv[i]) == MagickFalse) ThrowCompareInvalidArgumentException(option,argv[i]); break; } if (LocaleCompare("depth",option+1) == 0) { if (*option == '+') break; i++; if (i == (ssize_t) argc) ThrowCompareException(OptionError,"MissingArgument",option); if (IsGeometry(argv[i]) == MagickFalse) ThrowCompareInvalidArgumentException(option,argv[i]); break; } if (LocaleCompare("dissimilarity-threshold",option+1) == 0) { if (*option == '+') break; i++; if (i == (ssize_t) argc) ThrowCompareException(OptionError,"MissingArgument",option); if (IsGeometry(argv[i]) == MagickFalse) ThrowCompareInvalidArgumentException(option,argv[i]); if (*option == '+') dissimilarity_threshold=DefaultDissimilarityThreshold; else dissimilarity_threshold=StringToDouble(argv[i]); break; } if (LocaleCompare("duration",option+1) == 0) { if (*option == '+') break; i++; if (i == (ssize_t) (argc-1)) ThrowCompareException(OptionError,"MissingArgument",option); if (IsGeometry(argv[i]) == MagickFalse) ThrowCompareInvalidArgumentException(option,argv[i]); break; } ThrowCompareException(OptionError,"UnrecognizedOption",option) } case 'e': { if (LocaleCompare("encipher",option+1) == 0) { if (*option == '+') break; i++; if (i == (ssize_t) (argc-1)) ThrowCompareException(OptionError,"MissingArgument",option); break; } if (LocaleCompare("extract",option+1) == 0) { if (*option == '+') break; i++; if (i == (ssize_t) (argc-1)) ThrowCompareException(OptionError,"MissingArgument",option); if (IsGeometry(argv[i]) == MagickFalse) ThrowCompareInvalidArgumentException(option,argv[i]); break; } ThrowCompareException(OptionError,"UnrecognizedOption",option) } case 'f': { if (LocaleCompare("format",option+1) == 0) { if (*option == '+') break; i++; if (i == (ssize_t) argc) ThrowCompareException(OptionError,"MissingArgument",option); format=argv[i]; break; } if (LocaleCompare("fuzz",option+1) == 0) { if (*option == '+') break; i++; if (i == (ssize_t) (argc-1)) ThrowCompareException(OptionError,"MissingArgument",option); if (IsGeometry(argv[i]) == MagickFalse) ThrowCompareInvalidArgumentException(option,argv[i]); break; } ThrowCompareException(OptionError,"UnrecognizedOption",option) } case 'h': { if ((LocaleCompare("help",option+1) == 0) || (LocaleCompare("-help",option+1) == 0)) return(CompareUsage()); if (LocaleCompare("highlight-color",option+1) == 0) { if (*option == '+') break; i++; if (i == (ssize_t) (argc-1)) ThrowCompareException(OptionError,"MissingArgument",option); break; } ThrowCompareException(OptionError,"UnrecognizedOption",option) } case 'i': { if (LocaleCompare("identify",option+1) == 0) break; if (LocaleCompare("interlace",option+1) == 0) { ssize_t interlace; if (*option == '+') break; i++; if (i == (ssize_t) argc) ThrowCompareException(OptionError,"MissingArgument",option); interlace=ParseMagickOption(MagickInterlaceOptions,MagickFalse, argv[i]); if (interlace < 0) ThrowCompareException(OptionError,"UnrecognizedInterlaceType", argv[i]); break; } ThrowCompareException(OptionError,"UnrecognizedOption",option) } case 'l': { if (LocaleCompare("limit",option+1) == 0) { char *p; double value; ssize_t resource; if (*option == '+') break; i++; if (i == (ssize_t) argc) ThrowCompareException(OptionError,"MissingArgument",option); resource=ParseMagickOption(MagickResourceOptions,MagickFalse, argv[i]); if (resource < 0) ThrowCompareException(OptionError,"UnrecognizedResourceType", argv[i]); i++; if (i == (ssize_t) argc) ThrowCompareException(OptionError,"MissingArgument",option); value=strtod(argv[i],&p); if ((p == argv[i]) && (LocaleCompare("unlimited",argv[i]) != 0)) ThrowCompareInvalidArgumentException(option,argv[i]); break; } if (LocaleCompare("list",option+1) == 0) { ssize_t list; if (*option == '+') break; i++; if (i == (ssize_t) argc) ThrowCompareException(OptionError,"MissingArgument",option); list=ParseMagickOption(MagickListOptions,MagickFalse,argv[i]); if (list < 0) ThrowCompareException(OptionError,"UnrecognizedListType",argv[i]); status=MogrifyImageInfo(image_info,(int) (i-j+1),(const char **) argv+j,exception); DestroyCompare(); return(status != 0 ? MagickFalse : MagickTrue); } if (LocaleCompare("log",option+1) == 0) { if (*option == '+') break; i++; if ((i == (ssize_t) argc) || (strchr(argv[i],'%') == (char *) NULL)) ThrowCompareException(OptionError,"MissingArgument",option); break; } if (LocaleCompare("lowlight-color",option+1) == 0) { if (*option == '+') break; i++; if (i == (ssize_t) (argc-1)) ThrowCompareException(OptionError,"MissingArgument",option); break; } ThrowCompareException(OptionError,"UnrecognizedOption",option) } case 'm': { if (LocaleCompare("matte",option+1) == 0) break; if (LocaleCompare("metric",option+1) == 0) { ssize_t type; if (*option == '+') break; i++; if (i == (ssize_t) argc) ThrowCompareException(OptionError,"MissingArgument",option); type=ParseMagickOption(MagickMetricOptions,MagickTrue,argv[i]); if (type < 0) ThrowCompareException(OptionError,"UnrecognizedMetricType", argv[i]); metric=(MetricType) type; break; } if (LocaleCompare("monitor",option+1) == 0) break; ThrowCompareException(OptionError,"UnrecognizedOption",option) } case 'p': { if (LocaleCompare("passphrase",option+1) == 0) { if (*option == '+') break; i++; if (i == (ssize_t) argc) ThrowCompareException(OptionError,"MissingArgument",option); break; } if (LocaleCompare("profile",option+1) == 0) { i++; if (i == (ssize_t) (argc-1)) ThrowCompareException(OptionError,"MissingArgument",option); break; } ThrowCompareException(OptionError,"UnrecognizedOption",option) } case 'q': { if (LocaleCompare("quality",option+1) == 0) { if (*option == '+') break; i++; if (i == (ssize_t) (argc-1)) ThrowCompareException(OptionError,"MissingArgument",option); if (IsGeometry(argv[i]) == MagickFalse) ThrowCompareInvalidArgumentException(option,argv[i]); break; } if (LocaleCompare("quantize",option+1) == 0) { ssize_t colorspace; if (*option == '+') break; i++; if (i == (ssize_t) (argc-1)) ThrowCompareException(OptionError,"MissingArgument",option); colorspace=ParseMagickOption(MagickColorspaceOptions, MagickFalse,argv[i]); if (colorspace < 0) ThrowCompareException(OptionError,"UnrecognizedColorspace", argv[i]); break; } if (LocaleCompare("quiet",option+1) == 0) break; ThrowCompareException(OptionError,"UnrecognizedOption",option) } case 'r': { if (LocaleCompare("regard-warnings",option+1) == 0) break; if (LocaleNCompare("respect-parentheses",option+1,17) == 0) { respect_parenthesis=(*option == '-') ? MagickTrue : MagickFalse; break; } ThrowCompareException(OptionError,"UnrecognizedOption",option) } case 's': { if (LocaleCompare("sampling-factor",option+1) == 0) { if (*option == '+') break; i++; if (i == (ssize_t) argc) ThrowCompareException(OptionError,"MissingArgument",option); if (IsGeometry(argv[i]) == MagickFalse) ThrowCompareInvalidArgumentException(option,argv[i]); break; } if (LocaleCompare("seed",option+1) == 0) { if (*option == '+') break; i++; if (i == (ssize_t) (argc-1)) ThrowCompareException(OptionError,"MissingArgument",option); if (IsGeometry(argv[i]) == MagickFalse) ThrowCompareInvalidArgumentException(option,argv[i]); break; } if (LocaleCompare("set",option+1) == 0) { i++; if (i == (ssize_t) argc) ThrowCompareException(OptionError,"MissingArgument",option); if (*option == '+') break; i++; if (i == (ssize_t) argc) ThrowCompareException(OptionError,"MissingArgument",option); break; } if (LocaleCompare("size",option+1) == 0) { if (*option == '+') break; i++; if (i == (ssize_t) argc) ThrowCompareException(OptionError,"MissingArgument",option); if (IsGeometry(argv[i]) == MagickFalse) ThrowCompareInvalidArgumentException(option,argv[i]); break; } if (LocaleCompare("subimage-search",option+1) == 0) { if (*option == '+') { subimage_search=MagickFalse; break; } subimage_search=MagickTrue; break; } if (LocaleCompare("synchronize",option+1) == 0) break; ThrowCompareException(OptionError,"UnrecognizedOption",option) } case 't': { if (LocaleCompare("taint",option+1) == 0) break; if (LocaleCompare("transparent-color",option+1) == 0) { if (*option == '+') break; i++; if (i == (ssize_t) (argc-1)) ThrowCompareException(OptionError,"MissingArgument",option); break; } if (LocaleCompare("type",option+1) == 0) { ssize_t type; if (*option == '+') break; i++; if (i == (ssize_t) argc) ThrowCompareException(OptionError,"MissingArgument",option); type=ParseMagickOption(MagickTypeOptions,MagickFalse,argv[i]); if (type < 0) ThrowCompareException(OptionError,"UnrecognizedImageType", argv[i]); break; } ThrowCompareException(OptionError,"UnrecognizedOption",option) } case 'v': { if (LocaleCompare("verbose",option+1) == 0) break; if ((LocaleCompare("version",option+1) == 0) || (LocaleCompare("-version",option+1) == 0)) { (void) fprintf(stdout,"Version: %s\n", GetMagickVersion((size_t *) NULL)); (void) fprintf(stdout,"Copyright: %s\n",GetMagickCopyright()); (void) fprintf(stdout,"Features: %s\n\n",GetMagickFeatures()); break; } if (LocaleCompare("virtual-pixel",option+1) == 0) { ssize_t method; if (*option == '+') break; i++; if (i == (ssize_t) (argc-1)) ThrowCompareException(OptionError,"MissingArgument",option); method=ParseMagickOption(MagickVirtualPixelOptions,MagickFalse, argv[i]); if (method < 0) ThrowCompareException(OptionError, "UnrecognizedVirtualPixelMethod",argv[i]); break; } ThrowCompareException(OptionError,"UnrecognizedOption",option) } case '?': break; default: ThrowCompareException(OptionError,"UnrecognizedOption",option) } fire=ParseMagickOption(MagickImageListOptions,MagickFalse,option+1) < 0 ? MagickFalse : MagickTrue; if (fire != MagickFalse) FireImageStack(MagickTrue,MagickTrue,MagickTrue); } if (k != 0) ThrowCompareException(OptionError,"UnbalancedParenthesis",argv[i]); if (i-- != (ssize_t) (argc-1)) ThrowCompareException(OptionError,"MissingAnImageFilename",argv[i]); if ((image == (Image *) NULL) || (GetImageListLength(image) < 2)) ThrowCompareException(OptionError,"MissingAnImageFilename",argv[i]); FinalizeImageSettings(image_info,image,MagickTrue); if ((image == (Image *) NULL) || (GetImageListLength(image) < 2)) ThrowCompareException(OptionError,"MissingAnImageFilename",argv[i]); image=GetImageFromList(image,0); reconstruct_image=GetImageFromList(image,1); if (subimage_search != MagickFalse) { similarity_image=SimilarityImage(image,reconstruct_image,&offset, &similarity_metric,exception); if (similarity_metric > dissimilarity_threshold) ThrowCompareException(ImageError,"ImagesTooDissimilar",image->filename); } if ((reconstruct_image->columns == image->columns) && (reconstruct_image->rows == image->rows)) difference_image=CompareImageChannels(image,reconstruct_image,channels, metric,&distortion,exception); else if (similarity_image == (Image *) NULL) ThrowCompareException(OptionError,"ImageWidthsOrHeightsDiffer", image->filename) else { Image *composite_image; /* Determine if reconstructed image is a subimage of the image. */ composite_image=CloneImage(image,0,0,MagickTrue,exception); if (composite_image == (Image *) NULL) difference_image=CompareImageChannels(image,reconstruct_image, channels,metric,&distortion,exception); else { (void) CompositeImage(composite_image,CopyCompositeOp, reconstruct_image,offset.x,offset.y); difference_image=CompareImageChannels(image,composite_image, channels,metric,&distortion,exception); if (difference_image != (Image *) NULL) { difference_image->page.x=offset.x; difference_image->page.y=offset.y; } composite_image=DestroyImage(composite_image); } if (difference_image != (Image *) NULL) { AppendImageToList(&difference_image,similarity_image); similarity_image=(Image *) NULL; } } if (difference_image == (Image *) NULL) status=0; else { if (image_info->verbose != MagickFalse) (void) IsImagesEqual(image,reconstruct_image); if (*difference_image->magick == '\0') (void) CopyMagickString(difference_image->magick,image->magick, MaxTextExtent); if (image_info->verbose == MagickFalse) { switch (metric) { case MeanAbsoluteErrorMetric: case MeanSquaredErrorMetric: case RootMeanSquaredErrorMetric: case PeakAbsoluteErrorMetric: { (void) fprintf(stderr,"%g (%g)",QuantumRange*distortion, (double) distortion); if ((reconstruct_image->columns != image->columns) || (reconstruct_image->rows != image->rows)) (void) fprintf(stderr," @ %.20g,%.20g",(double) difference_image->page.x,(double) difference_image->page.y); (void) fprintf(stderr,"\n"); break; } case AbsoluteErrorMetric: case NormalizedCrossCorrelationErrorMetric: case PeakSignalToNoiseRatioMetric: { (void) fprintf(stderr,"%g",distortion); if ((reconstruct_image->columns != image->columns) || (reconstruct_image->rows != image->rows)) (void) fprintf(stderr," @ %.20g,%.20g",(double) difference_image->page.x,(double) difference_image->page.y); (void) fprintf(stderr,"\n"); break; } case MeanErrorPerPixelMetric: { (void) fprintf(stderr,"%g (%g, %g)",distortion, image->error.normalized_mean_error, image->error.normalized_maximum_error); if ((reconstruct_image->columns != image->columns) || (reconstruct_image->rows != image->rows)) (void) fprintf(stderr," @ %.20g,%.20g",(double) difference_image->page.x,(double) difference_image->page.y); (void) fprintf(stderr,"\n"); break; } case UndefinedMetric: break; } } else { double *channel_distortion; channel_distortion=GetImageChannelDistortions(image,reconstruct_image, metric,&image->exception); (void) fprintf(stderr,"Image: %s\n",image->filename); if ((reconstruct_image->columns != image->columns) || (reconstruct_image->rows != image->rows)) (void) fprintf(stderr,"Offset: %.20g,%.20g\n",(double) difference_image->page.x,(double) difference_image->page.y); (void) fprintf(stderr," Channel distortion: %s\n", MagickOptionToMnemonic(MagickMetricOptions,(ssize_t) metric)); switch (metric) { case MeanAbsoluteErrorMetric: case MeanSquaredErrorMetric: case RootMeanSquaredErrorMetric: case PeakAbsoluteErrorMetric: { switch (image->colorspace) { case RGBColorspace: default: { (void) fprintf(stderr," red: %g (%g)\n", QuantumRange*channel_distortion[RedChannel], channel_distortion[RedChannel]); (void) fprintf(stderr," green: %g (%g)\n", QuantumRange*channel_distortion[GreenChannel], channel_distortion[GreenChannel]); (void) fprintf(stderr," blue: %g (%g)\n", QuantumRange*channel_distortion[BlueChannel], channel_distortion[BlueChannel]); if (image->matte != MagickFalse) (void) fprintf(stderr," alpha: %g (%g)\n", QuantumRange*channel_distortion[OpacityChannel], channel_distortion[OpacityChannel]); break; } case CMYKColorspace: { (void) fprintf(stderr," cyan: %g (%g)\n", QuantumRange*channel_distortion[CyanChannel], channel_distortion[CyanChannel]); (void) fprintf(stderr," magenta: %g (%g)\n", QuantumRange*channel_distortion[MagentaChannel], channel_distortion[MagentaChannel]); (void) fprintf(stderr," yellow: %g (%g)\n", QuantumRange*channel_distortion[YellowChannel], channel_distortion[YellowChannel]); (void) fprintf(stderr," black: %g (%g)\n", QuantumRange*channel_distortion[BlackChannel], channel_distortion[BlackChannel]); if (image->matte != MagickFalse) (void) fprintf(stderr," alpha: %g (%g)\n", QuantumRange*channel_distortion[OpacityChannel], channel_distortion[OpacityChannel]); break; } case GRAYColorspace: { (void) fprintf(stderr," gray: %g (%g)\n", QuantumRange*channel_distortion[GrayChannel], channel_distortion[GrayChannel]); if (image->matte != MagickFalse) (void) fprintf(stderr," alpha: %g (%g)\n", QuantumRange*channel_distortion[OpacityChannel], channel_distortion[OpacityChannel]); break; } } (void) fprintf(stderr," all: %g (%g)\n", QuantumRange*channel_distortion[AllChannels], channel_distortion[AllChannels]); break; } case AbsoluteErrorMetric: case NormalizedCrossCorrelationErrorMetric: case PeakSignalToNoiseRatioMetric: { switch (image->colorspace) { case RGBColorspace: default: { (void) fprintf(stderr," red: %g\n", channel_distortion[RedChannel]); (void) fprintf(stderr," green: %g\n", channel_distortion[GreenChannel]); (void) fprintf(stderr," blue: %g\n", channel_distortion[BlueChannel]); if (image->matte != MagickFalse) (void) fprintf(stderr," alpha: %g\n", channel_distortion[OpacityChannel]); break; } case CMYKColorspace: { (void) fprintf(stderr," cyan: %g\n", channel_distortion[CyanChannel]); (void) fprintf(stderr," magenta: %g\n", channel_distortion[MagentaChannel]); (void) fprintf(stderr," yellow: %g\n", channel_distortion[YellowChannel]); (void) fprintf(stderr," black: %g\n", channel_distortion[BlackChannel]); if (image->matte != MagickFalse) (void) fprintf(stderr," alpha: %g\n", channel_distortion[OpacityChannel]); break; } case GRAYColorspace: { (void) fprintf(stderr," gray: %g\n", channel_distortion[GrayChannel]); if (image->matte != MagickFalse) (void) fprintf(stderr," alpha: %g\n", channel_distortion[OpacityChannel]); break; } } (void) fprintf(stderr," all: %g\n", channel_distortion[AllChannels]); break; } case MeanErrorPerPixelMetric: { (void) fprintf(stderr," %g (%g, %g)\n", channel_distortion[AllChannels], image->error.normalized_mean_error, image->error.normalized_maximum_error); break; } case UndefinedMetric: break; } channel_distortion=(double *) RelinquishMagickMemory( channel_distortion); } status&=WriteImages(image_info,difference_image,argv[argc-1],exception); if ((metadata != (char **) NULL) && (format != (char *) NULL)) { char *text; text=InterpretImageProperties(image_info,difference_image,format); if (text == (char *) NULL) ThrowCompareException(ResourceLimitError,"MemoryAllocationFailed", GetExceptionMessage(errno)); (void) ConcatenateString(&(*metadata),text); (void) ConcatenateString(&(*metadata),"\n"); text=DestroyString(text); } difference_image=DestroyImageList(difference_image); } DestroyCompare(); return(status != 0 ? MagickTrue : MagickFalse); }