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compare(1)                                                          compare(1)



NAME
       compare - mathematically and visually annotate the difference between an image and its reconstruction.

SYNOPSIS
       compare input-file input-file [options] output-file

OVERVIEW
       The  compare  program  is a member of the ImageMagick(1) suite of tools.  Use it to mathematically and visually
       annotate the difference between an image and its reconstruction.

       For more  information  about  the  compare  command,  point  your  browser  to  file:///usr/share/doc/ImageMag-
       ick-6.7.9/www/compare.html or http://www.imagemagick.org/script/compare.php.

DESCRIPTION
       Image Settings:
         -authenticate value  decrypt 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
         -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
         -identify            identify the format and characteristics of the image
         -interlace type      type of image interlacing scheme
         -highlight-color color
                              emphasize pixel differences with this color
         -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
         -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
         -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
         -size geometry       width and height of image
         -subimage-search     search for subimage
         -synchronize         synchronize image to storage device
         -taint               declare the image as modified
         -transparent-color color
                              transparent color
         -type type           image type
         -verbose             print detailed information about the image
         -virtual-pixel method
                              virtual pixel access method

       Miscellaneous Options:
         -debug events        display copious debugging information
         -help                print program options
         -log format          format of debugging information
         -list type           print a list of supported option arguments
         -version             print version information

       By  default,  the image format of 'file' is determined by its magic number.  To specify a particular image for-
       mat, precede the filename with an image format name and a colon (i.e. ps:image) or specify the  image  type  as
       the filename suffix (i.e. image.ps).  Specify 'file' as '-' for standard input or output.

SEE ALSO
       ImageMagick(1)


COPYRIGHT
       Copyright  (C) 1999-2012 ImageMagick Studio LLC. Additional copyrights and licenses apply to this software, see
       file:///usr/share/doc/ImageMagick-6.7.9/www/license.html or http://www.imagemagick.org/script/license.php



ImageMagick                Date: 2009/01/10 01:00:00                compare(1)