diffimg image1 image2 [outimage]

       diffimg  generates  an image where each pixel is the difference between
       the corresponding pixel in each of the two source images.  Thus, if the
       source images are the same the resulting image will be black, otherwise
       it will have regions of non-black where the images differ.

       Currently supports: .png, .gif, .jpg, and .ps by using ghostscript

       diffimg was written by John Ellson <ellson@research.att.com>

       This  manual  page  was  written  by  David  Claughton  <dave@eclectic-
       dave.com>, for the Debian project (but may be used by others).

                                 Jan 31, 2010                       DIFFIMG(1)
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