Compare



CompareImagesCommand

CompareImagesCommand() 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 CompareImagesCommand method is:

MagickBooleanType CompareImagesCommand(ImageInfo *image_info,int argc,
  char **argv,char **metadata,ExceptionInfo *exception)

A description of each parameter follows:

image_info
the image info.
argc
the number of elements in the argument vector.
argv
A text array containing the command line arguments.
metadata
any metadata is returned here.
exception
return any errors or warnings in this structure.