2.1. Colour Modes
- Gimp supports RGB, Grayscale and Indexed (= palette based) Images
- It can convert between them, but conversion from RGB to something else is not reversible.
Demo:
- Open lena_color.jpg.
- Select
- Select
- As can be seen, the image remained in shades of gray. However, now colours can be added.
- Some effects are not available in all modes
- It is recommended to work in RGB or in Grayscale and convert it to be a palette-based one only before publishing it. (and keep a copy of the RGB source)