1
vote
3answers
583 views

Free tool to extract objects from photos

Is there a free tool that's good at extracting objects from photos? It has to work on linux For instance, extracting a person from a photograph.
3
votes
8answers
4k views

Any free tool to change color of an image

HI, Is there any tool which can easily change color of an image? I heard of gimp. But I can't figure out how to use it to change color of an image (e.g. change the color from white to blue).
1
vote
1answer
405 views

What does the GEGL Operation in GIMP do?

I see it under the Tools menu, but I've never used it before. What does it do?
8
votes
4answers
13k views

How to get a good clean newspaper scan?

I tried a few times to scan newspaper articles, but the images I got were always blotchy and with bad colors, sort of like this: Sometimes I see some really good scans, like this: What is the ...