00001 
00002 
00003 
00004 
00005 
00006 
00007 
00008 
00009 
00010 
00011 
00012 
00013 
00014 
00015 
00016 
00017 
00018 #ifndef _MAGICKCORE_COMPARE_H
00019 #define _MAGICKCORE_COMPARE_H
00020 
00021 #if defined(__cplusplus) || defined(c_plusplus)
00022 extern "C" {
00023 #endif
00024 
00025 #include "magick/image.h"
00026 
00027 typedef enum
00028 {
00029   UndefinedMetric,
00030   AbsoluteErrorMetric,
00031   MeanAbsoluteErrorMetric,
00032   MeanErrorPerPixelMetric,
00033   MeanSquaredErrorMetric,
00034   PeakAbsoluteErrorMetric,
00035   PeakSignalToNoiseRatioMetric,
00036   RootMeanSquaredErrorMetric
00037 } MetricType;
00038 
00039 extern MagickExport Image
00040   *CompareImageChannels(Image *,const Image *,const ChannelType,
00041     const MetricType,double *,ExceptionInfo *),
00042   *CompareImages(Image *,const Image *,const MetricType,double *,
00043     ExceptionInfo *);
00044 
00045 extern MagickExport MagickBooleanType
00046   GetImageChannelDistortion(Image *,const Image *,const ChannelType,
00047     const MetricType,double *,ExceptionInfo *),
00048   GetImageDistortion(Image *,const Image *,const MetricType,double *,
00049     ExceptionInfo *),
00050   IsImagesEqual(Image *,const Image *);
00051 
00052 #if defined(__cplusplus) || defined(c_plusplus)
00053 }
00054 #endif
00055 
00056 #endif