+- Gimp-Forum.net (https://www.gimp-forum.net)
+-- Forum: GIMP (https://www.gimp-forum.net/Forum-GIMP)
+--- Forum: General questions (https://www.gimp-forum.net/Forum-General-questions)
+--- Thread: Copy content of channels into other ones (/Thread-Copy-content-of-channels-into-other-ones)
Copy content of channels into other ones - top1r - 10-23-2025
Hi, I would like to know how to copy the content of colors channels RGB (Red, Green and Blue) into Green, then copy the content of Alpha channel into Red ?
I tried it on PS and it was quite easy, but I can't manage to reproduce it on Gimp.
Thanks and have a good day !
RE: Copy content of channels into other ones - rich2005 - 10-23-2025
Try:
Colors -> Components -> Decompose ...choose RGBA and to layers
that makes a new image.
Copy the Alpha layer Edit -> Copy
Go to the Red layer and Edit -> Paste As -> Paste As Floating Data
Anchor that "Floating layer" Either in Layer dock or Layer -> Anchor floating Layer or Mask
Colors -> Components -> Recompose
Go back to the original image for the change.
A 40 second animation of that: https://sendvid.com/esy5aj3v