0
votes
1answer
189 views

GIMP: change the exact color on the image - OK, but transparency disappears

There is no problem for me now to change color for pixels of the same color: I click on "Select by Color Tool"(Ctrl+O). The pixels of the same color are selected now. Then I press Ctrl+,. The selected ...
2
votes
1answer
314 views

how to change the color that's used for transparency automatically, or programmatically?

For every picture (e.g. bmp, png), a transparent point actually does have a color The transparency is either defined by alpha channel mask (e.g. in PNG) or one of the colors is defined as ...
1
vote
1answer
34 views

transparenting selection

How can I make selection transparent as value of selection by quick mask? I mean I made quick mask, made selection and now want these selected parts to be as transparent as much selected are.
2
votes
1answer
2k views

GIMP - change color of object preserving feathering

I have an .xcf image and I like to change the color of some objects within it. The objects are mostly one solid color with the edges feathered into transparency. I.e. all pixels in the object are ...
7
votes
2answers
15k views

Make one side of image fade to transparent with GIMP?

For use in some of my presentation slides, I hope to edit some of my images with The GIMP so that one (or more) side(s) will fade into transparency. How do I do this in GIMP?