"source contains no colors" despite following the instructions to import palette

[rich2005]

Quote:P.S. Since I work with layers, I have to work with RGB mode.

That resulted in previous post about sample merged.

However, single layer and too many colours confuses Gimp. The blurb says:

" quote - GIMP will try to create a palette by spacing the specified number of colors even across the color range of the gradient or image."

If 256 colours is not sufficient (as you found RGB -> Indexed -> RGB works for 256)

Make a representitive selection - long and narrow and apply that in the dialogue. Increase the number of colours



Another way might be create a representive gradient and use, just off to try that.

---------some minutes later...............

Going via a gradient might be worth a go.

I use this script: http://silent9.com/incoming/scripts/samp...g-path.scm limited to 256 colours

There is another gradient maker in the gmic plugin if you look.

All in one screenshot: The gradient comes from a corner-to-corner path, so hopefully a representation of the 363775 colours in the image.