Search found 17 matches

by mortoray
2014-02-13T00:14:08-07:00
Forum: Users
Topic: Subtract opaque region of one image from another
Replies: 4
Views: 3358

Re: Subtract opaque region of one image from another

That appears to do what I want. I'm not sure I fully understand how it works. The opacity from circle_small is copied into the merged image, which retains the colors and size of square. The resulting image has it's alpha channel inverted. Is that correct?
by mortoray
2014-02-12T22:21:43-07:00
Forum: Users
Topic: Subtract opaque region of one image from another
Replies: 4
Views: 3358

Subtract opaque region of one image from another

I want to subtract two images from each other but cannot deterine what command-line is appropriate. I want the opaque regions of a mask image to be removed from another image. http://i.imgur.com/PO4LibQ.png minus http://i.imgur.com/QpoGxPY.png equals http://i.imgur.com/Vlgy3QH.png I have this comman...