How can I swap colors with GIMP?
Solution 1:
For GIMP 2.6.12, Just use Colors -> Map -> Color Exchange
Solution 2:
Try Filters -> Colors -> Map -> Color Exchange... in RGB mode.
You should be able to replace one color with another easily.
Solution 3:
To directly modify how each channel is interpreted, use Colors -> Components -> Channel Mixer.
To get what you want, you would select
-
Blue:
- Red: 26.3
- Green: 26.3
- Blue: 26.3
-
Red:
- Red: 93.3
- Green: 93.3
- Blue: 93.3
-
Green:
- Red: 73.3
- Green: 73.3
- Blue: 73.3