Do it with the GIMPLUT (Look-Up Tables Effects)Color Map Rotation

3.4. Color Map Rotation

So far we have seen LUTs from the V value to the V value. But there can also be RGB to RGB LUTs. An example of it is the Color Map Rotation which enables us to swap a range of colours with other colours in the Hue spectrum.

Demo

  1. Open tiger_sitting.jpg.
  2. <Image> -> Image -> Colors -> "Colormap Rotation..."
  3. Replace the shades of brown and yellow with purple.
  4. Et voila: The Pink Panther.
  5. Undo.
  6. Convert the shades of green to browns and we get a tiger in the desert.

Written by Shlomi Fish