2
votes
1answer
166 views

How to edit an animated gif in gimp to include transparency?

I have an ajax spinner which unfortunately has a white background in the corners. I want to remove the white and make it transparent using GIMP. How can I go about doing that? I tried opening it in ...
3
votes
1answer
360 views

Can I extract shadows from a texture to make a transparent image (png)?

I have this image: And I would like to extract the dark parts (shadows) to make a transparency consisting of black pixels at different alpha channel values. Here is a crude example image of what I ...