colormap

GIMP Indexed palette selection tools

Stratadrake — Tue, 19 Aug 2008 21:26:00 +0200

I wrote this script using GIMP bug #88361 as inspiration. This script provides three functions that expand GIMP's ability to deal with indexed colors. I designed them with pixel artists in mind, who frequently store their target palette as a set of swatches in one region of the image they're working on.

(Image) > Colors > Map > Colormap to palette Creates a GIMP palette based on an indexed image's colormap, which can then be used just like any normal GIMP palette.

(Image) > Select > Save to palette Creates a GIMP palette based on the selected region of the current layer.

(Image) > Mode > Indexed from selection... Converts an image to indexed colors, using only the selected region to define the image's colormap.

Relative color remap

larsrc — Tue, 03 Jun 2008 13:22:55 +0200

This plug-in changes colors in an image based on the HSV difference between two colors. This is particularly useful for applying color themes to existing images.
It avoids burning out high saturation and value at the expense of compression them somewhat when the difference goes towards higher saturation and value.
Current bugs/missing features include:
Undo does not work.
It can't be used on indexed images, even though it would frequently have enough colors.
It's slooow. Since it looks at only one pixel at a time, it should use some "pixel-iterator" that goes through the tiles in an optimal manner.
Selection only works in binary.
Grayscale support is untested and probably broken.
There is no preview.
Prevention of highlight burnout should be optional.

Color vibrance

eg — Mon, 07 Jan 2008 14:03:31 +0100

Change the color saturation of your image (implementation of a 'digital velvia')