Search found 2 matches

by voldemarz
2014-09-26T05:24:01-07:00
Forum: Users
Topic: How to multiply an image by a constant ?
Replies: 4
Views: 7576

Re: How to multiply an image by a constant ?

Thanks, it works. I just achieved the same result using -color-matrix. It seems though there is something wrong with the examples here http://www.imagemagick.org/Usage/color_mods/#color-matrix It doesn't work if colon is placed after input file name as in the example, the convert tool just keeps ...
by voldemarz
2014-09-26T04:24:00-07:00
Forum: Users
Topic: How to multiply an image by a constant ?
Replies: 4
Views: 7576

How to multiply an image by a constant ?

Sorry if this is a simple question, but I can't find info online. I have substracted two images and would like scale the resulting diff image by some constant to make differences more noticeable. I'd imagine ImageMagick is able to do this, but I can't find the right commands for this. Can anyone ...