/plugins/ImageMagick-6.3.2/wand/compare.c
C | 742 lines | 630 code | 28 blank | 84 comment | 251 complexity | 28a439a5b5ef9916649eb809473effcf MD5 | raw file
Possible License(s): MPL-2.0-no-copyleft-exception, LGPL-2.1
- /*
- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
- % %
- % %
- % %
- % 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 1999-2006 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. %
- % %
- %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
- %
- %
- %
- */
- /*
- Include declarations.
- */
- #include "wand/studio.h"
- #include "wand/MagickWand.h"
- #include "wand/mogrify-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 void CompareUsage(void)
- {
- const char
- **p;
- static const char
- *settings[]=
- {
- "-authenticate value decrypt image with this password",
- "-channel type apply option to select image channels",
- "-colorspace type alternate image colorspace",
- "-compress type type of pixel compression when writing the image",
- "-debug events display copious debugging information",
- "-define format:option",
- " define one or more image format options",
- "-density geometry horizontal and vertical density of the image",
- "-depth value image depth",
- "-extract geometry extract area from image",
- "-format \"string\" output formatted image characteristics",
- "-fuzz distance colors within this distance are considered equal",
- "-help print program options",
- "-identify identify the format and characteristics of the image",
- "-interlace type type of image interlacing scheme",
- "-limit type value pixel cache resource limit",
- "-log format format of debugging information",
- "-metric type measure differences between images with this metric",
- "-monitor monitor progress",
- "-profile filename add, delete, or apply an image profile",
- "-quality value JPEG/MIFF/PNG compression level",
- "-quiet suppress all error or warning messages",
- "-quantize colorspace reduce colors in this colorspace",
- "-regard-warnings pay attention to warning messages",
- "-sampling-factor geometry",
- " horizontal and vertical sampling factor",
- "-set attribute value set an image attribute",
- "-size geometry width and height of image",
- "-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((unsigned long *) NULL));
- (void) printf("Copyright: %s\n\n",GetMagickCopyright());
- (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(
- "\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");
- exit(0);
- }
- WandExport MagickBooleanType CompareImageCommand(ImageInfo *image_info,
- int argc,char **argv,char **metadata,ExceptionInfo *exception)
- {
- #define DestroyCompare() \
- { \
- for ( ; k >= 0; k--) \
- image_stack[k]=DestroyImageList(image_stack[k]); \
- for (i=0; i < (long) argc; i++) \
- argv[i]=(char *) RelinquishMagickMemory(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",argument,option); \
- DestroyCompare(); \
- return(MagickFalse); \
- }
- char
- *filename,
- *option;
- const char
- *format;
- ChannelType
- channel;
- double
- distortion;
- Image
- *difference_image,
- *image,
- *image_stack[MaxImageStackDepth+1],
- *reconstruct_image;
- long
- j,
- k;
- MagickBooleanType
- fire,
- pend;
- MagickStatusType
- status;
- MetricType
- metric;
- register long
- i;
- /*
- 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 < 3)
- CompareUsage();
- channel=AllChannels;
- difference_image=NewImageList();
- distortion=0.0;
- format=(char *) NULL;
- j=1;
- k=0;
- image_stack[k]=NewImageList();
- metric=UndefinedMetric;
- option=(char *) NULL;
- pend=MagickFalse;
- reconstruct_image=NewImageList();
- status=MagickTrue;
- /*
- Compare an image.
- */
- ReadCommandlLine(argc,&argv);
- status=ExpandFilenames(&argc,&argv);
- if (status == MagickFalse)
- {
- char
- *message;
- message=GetExceptionMessage(errno);
- ThrowCompareException(ResourceLimitError,"MemoryAllocationFailed",
- message);
- message=(char *) RelinquishMagickMemory(message);
- }
- for (i=1; i < (long) (argc-1); i++)
- {
- option=argv[i];
- if (LocaleCompare(option,"(") == 0)
- {
- if (k == MaxImageStackDepth)
- ThrowCompareException(OptionError,"ParenthesisNestedTooDeeply",
- option);
- MogrifyImageStack(image_stack[k],MagickTrue,pend);
- k++;
- image_stack[k]=NewImageList();
- continue;
- }
- if (LocaleCompare(option,")") == 0)
- {
- if (k == 0)
- ThrowCompareException(OptionError,"UnableToParseExpression",option);
- if (image_stack[k] != (Image *) NULL)
- {
- MogrifyImageStack(image_stack[k],MagickTrue,MagickTrue);
- AppendImageToList(&image_stack[k-1],image_stack[k]);
- }
- k--;
- continue;
- }
- if (IsMagickOption(option) == MagickFalse)
- {
- /*
- Read input image.
- */
- MogrifyImageStack(image_stack[k],MagickTrue,pend);
- filename=argv[i];
- if ((LocaleCompare(filename,"--") == 0) && (i < (argc-1)))
- filename=argv[++i];
- (void) CopyMagickString(image_info->filename,filename,MaxTextExtent);
- image=ReadImage(image_info,exception);
- status&=(image != (Image *) NULL) &&
- (exception->severity < ErrorException);
- if (image == (Image *) NULL)
- continue;
- AppendImageToList(&image_stack[k],image);
- continue;
- }
- pend=image_stack[k] != (Image *) NULL ? MagickTrue : MagickFalse;
- switch (*(option+1))
- {
- case 'c':
- {
- if (LocaleCompare("cache",option+1) == 0)
- {
- if (*option == '+')
- break;
- i++;
- if (i == (long) argc)
- ThrowCompareException(OptionError,"MissingArgument",option);
- if (IsGeometry(argv[i]) == MagickFalse)
- ThrowCompareInvalidArgumentException(option,argv[i]);
- break;
- }
- if (LocaleCompare("channel",option+1) == 0)
- {
- long
- channel;
- if (*option == '+')
- break;
- i++;
- if (i == (long) (argc-1))
- ThrowCompareException(OptionError,"MissingArgument",option);
- channel=ParseChannelOption(argv[i]);
- if (channel < 0)
- ThrowCompareException(OptionError,"UnrecognizedChannelType",
- argv[i]);
- break;
- }
- if (LocaleCompare("colorspace",option+1) == 0)
- {
- long
- colorspace;
- if (*option == '+')
- break;
- i++;
- if (i == (long) (argc-1))
- ThrowCompareException(OptionError,"MissingArgument",option);
- colorspace=ParseMagickOption(MagickColorspaceOptions,MagickFalse,
- argv[i]);
- if (colorspace < 0)
- ThrowCompareException(OptionError,"UnrecognizedColorspace",
- argv[i]);
- break;
- }
- if (LocaleCompare("compress",option+1) == 0)
- {
- long
- compression;
- if (*option == '+')
- break;
- i++;
- if (i == (long) (argc-1))
- ThrowCompareException(OptionError,"MissingArgument",option);
- compression=ParseMagickOption(MagickCompressionOptions,
- MagickFalse,argv[i]);
- if (compression < 0)
- ThrowCompareException(OptionError,
- "UnrecognizedImageCompression",argv[i]);
- break;
- }
- ThrowCompareException(OptionError,"UnrecognizedOption",option)
- }
- case 'd':
- {
- if (LocaleCompare("debug",option+1) == 0)
- {
- LogEventType
- event_mask;
- if (*option == '+')
- break;
- i++;
- if (i == (long) argc)
- ThrowCompareException(OptionError,"MissingArgument",option);
- event_mask=SetLogEventMask(argv[i]);
- if (event_mask == UndefinedEvents)
- ThrowCompareException(OptionError,"UnrecognizedEventType",
- argv[i]);
- break;
- }
- if (LocaleCompare("define",option+1) == 0)
- {
- i++;
- if (i == (long) 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 == (long) 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 == (long) argc)
- ThrowCompareException(OptionError,"MissingArgument",option);
- if (IsGeometry(argv[i]) == MagickFalse)
- ThrowCompareInvalidArgumentException(option,argv[i]);
- break;
- }
- ThrowCompareException(OptionError,"UnrecognizedOption",option)
- }
- case 'e':
- {
- if (LocaleCompare("extract",option+1) == 0)
- {
- if (*option == '+')
- break;
- i++;
- if (i == (long) (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 == (long) argc)
- ThrowCompareException(OptionError,"MissingArgument",option);
- format=argv[i];
- break;
- }
- if (LocaleCompare("fuzz",option+1) == 0)
- {
- if (*option == '+')
- break;
- i++;
- if (i == (long) (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))
- CompareUsage();
- ThrowCompareException(OptionError,"UnrecognizedOption",option)
- }
- case 'i':
- {
- if (LocaleCompare("identify",option+1) == 0)
- break;
- if (LocaleCompare("interlace",option+1) == 0)
- {
- long
- interlace;
- if (*option == '+')
- break;
- i++;
- if (i == (long) 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)
- {
- long
- resource;
- if (*option == '+')
- break;
- i++;
- if (i == (long) argc)
- ThrowCompareException(OptionError,"MissingArgument",option);
- resource=ParseMagickOption(MagickResourceOptions,MagickFalse,
- argv[i]);
- if (resource < 0)
- ThrowCompareException(OptionError,"UnrecognizedResourceType",
- argv[i]);
- i++;
- if (i == (long) argc)
- ThrowCompareException(OptionError,"MissingArgument",option);
- if ((LocaleCompare("unlimited",argv[i]) != 0) &&
- (IsGeometry(argv[i]) == MagickFalse))
- ThrowCompareInvalidArgumentException(option,argv[i]);
- break;
- }
- if (LocaleCompare("log",option+1) == 0)
- {
- if (*option == '+')
- break;
- i++;
- if ((i == (long) argc) || (strchr(argv[i],'%') == (char *) NULL))
- ThrowCompareException(OptionError,"MissingArgument",option);
- break;
- }
- ThrowCompareException(OptionError,"UnrecognizedOption",option)
- }
- case 'm':
- {
- if (LocaleCompare("metric",option+1) == 0)
- {
- if (*option == '+')
- break;
- i++;
- if (i == (long) argc)
- ThrowCompareException(OptionError,"MissingArgument",option);
- metric=(MetricType) ParseMagickOption(MagickMetricOptions,
- MagickTrue,argv[i]);
- if (metric <= UndefinedMetric)
- ThrowCompareException(OptionError,"UnrecognizedMetricType",
- argv[i]);
- break;
- }
- if (LocaleCompare("monitor",option+1) == 0)
- break;
- ThrowCompareException(OptionError,"UnrecognizedOption",option)
- }
- case 'p':
- {
- if (LocaleCompare("profile",option+1) == 0)
- {
- i++;
- if (i == (long) (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 == (long) (argc-1))
- ThrowCompareException(OptionError,"MissingArgument",option);
- if (IsGeometry(argv[i]) == MagickFalse)
- ThrowCompareInvalidArgumentException(option,argv[i]);
- break;
- }
- if (LocaleCompare("quantize",option+1) == 0)
- {
- long
- colorspace;
- if (*option == '+')
- break;
- i++;
- if (i == (long) (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;
- ThrowCompareException(OptionError,"UnrecognizedOption",option)
- }
- case 's':
- {
- if (LocaleCompare("sampling-factor",option+1) == 0)
- {
- if (*option == '+')
- break;
- i++;
- if (i == (long) argc)
- ThrowCompareException(OptionError,"MissingArgument",option);
- if (IsGeometry(argv[i]) == MagickFalse)
- ThrowCompareInvalidArgumentException(option,argv[i]);
- break;
- }
- if (LocaleCompare("set",option+1) == 0)
- {
- i++;
- if (i == (long) argc)
- ThrowCompareException(OptionError,"MissingArgument",option);
- if (*option == '+')
- break;
- i++;
- if (i == (long) argc)
- ThrowCompareException(OptionError,"MissingArgument",option);
- break;
- }
- if (LocaleCompare("size",option+1) == 0)
- {
- if (*option == '+')
- break;
- i++;
- if (i == (long) argc)
- ThrowCompareException(OptionError,"MissingArgument",option);
- if (IsGeometry(argv[i]) == MagickFalse)
- ThrowCompareInvalidArgumentException(option,argv[i]);
- break;
- }
- ThrowCompareException(OptionError,"UnrecognizedOption",option)
- }
- case 't':
- {
- if (LocaleCompare("transparent-color",option+1) == 0)
- {
- if (*option == '+')
- break;
- i++;
- if (i == (long) (argc-1))
- ThrowCompareException(OptionError,"MissingArgument",option);
- break;
- }
- if (LocaleCompare("type",option+1) == 0)
- {
- long
- type;
- if (*option == '+')
- break;
- i++;
- if (i == (long) argc)
- ThrowCompareException(OptionError,"MissingArgument",option);
- type=ParseMagickOption(MagickImageOptions,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))
- break;
- if (LocaleCompare("virtual-pixel",option+1) == 0)
- {
- long
- method;
- if (*option == '+')
- break;
- i++;
- if (i == (long) (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=(MagickBooleanType) ParseMagickOption(MagickMogrifyOptions,
- MagickFalse,option+1);
- if (fire == MagickTrue)
- MogrifyImageStack(image_stack[k],MagickTrue,MagickTrue);
- }
- if (k != 0)
- ThrowCompareException(OptionError,"UnbalancedParenthesis",argv[i]);
- if (i-- != (long) (argc-1))
- ThrowCompareException(OptionError,"MissingAnImageFilename",argv[i]);
- if ((image_stack[k] == (Image *) NULL) ||
- (GetImageListLength(image_stack[k]) < 2))
- ThrowCompareException(OptionError,"MissingAnImageFilename",argv[i]);
- MogrifyImageStack(image_stack[k],MagickTrue,MagickTrue);
- image=GetImageFromList(image_stack[k],0);
- reconstruct_image=GetImageFromList(image_stack[k],1);
- difference_image=CompareImageChannels(image,reconstruct_image,channel,
- metric,&distortion,exception);
- if (difference_image == (Image *) NULL)
- status=0;
- else
- {
- if (image_info->verbose != MagickFalse)
- (void) IsImagesEqual(image,reconstruct_image);
- 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)
- {
- char
- *message;
- message=GetExceptionMessage(errno);
- ThrowCompareException(ResourceLimitError,"MemoryAllocationFailed",
- message);
- message=(char *) RelinquishMagickMemory(message);
- }
- (void) ConcatenateString(&(*metadata),text);
- (void) ConcatenateString(&(*metadata),"\n");
- text=(char *) RelinquishMagickMemory(text);
- }
- difference_image=DestroyImageList(difference_image);
- if (metric != UndefinedMetric)
- (void) fprintf(stdout,"%g\n",distortion);
- }
- DestroyCompare();
- return(status != 0 ? MagickTrue : MagickFalse);
- }