Hi, The ImageMagick option -contrast-stretch is not recognised in my installation (6.2.5 01/31/06 Q16). The option is documented on the IM web-site.
If the option exists on your installationi, or you have any insights, please reply here with your version, so I can decide whether and where to file a bug-report. You can do something like this: convert input.jpg -contrast-stretch 10% output.jpg Thanks. J Green -- gentoo-user@gentoo.org mailing list