>The most direct way I think would be > >convert image -evaluate multiply XX% resultimage
Correction. When using -evaluate multiply XX, the XX is a fraction such as 0.8 and not 80%. However, as I said later, if you don't want to affect the slope (contrast), then you want convert image -evaluate subtract XX% resultimage Here you do want percent, such as 20%. Fred _______________________________________________ Magick-users mailing list Magick-users@imagemagick.org http://studio.imagemagick.org/mailman/listinfo/magick-users
