On Thu, 28 May 2009 13:17:12 -0700 Fred Weinhaus <[email protected]> wrote:
| Replace the intensity channel in each of your two images with one of | the other two channels. then do your compare? | | see http://www.imagemagick.org/Usage/channels/#channels | More specifically convert the image to HSL and replace the luminance (or 'B') channel before comparing convert image1.png image2.png -colorspace HSL \ -channel B -evaluate set 50% miff:- |\ compare - cmp_image.png You can also use -compose difference too which will avoid the need for the pipeline between the two commands, and let you do the processing all in a single image. See Difference Images http://www.imagemagick.org/Usage/compare/#difference Anthony Thyssen ( System Programmer ) <[email protected]> ----------------------------------------------------------------------------- Here's the thing about the Future... Every time you look at it changes, because you looked at it... And that changes everything else. -- Movie "Next" ----------------------------------------------------------------------------- Anthony's Home is his Castle http://www.cit.gu.edu.au/~anthony/ _______________________________________________ Magick-users mailing list [email protected] http://studio.imagemagick.org/mailman/listinfo/magick-users
