I've seen this in a few plugins already, so I thought I'd mention it: Tags have to be separated by comma (","). Whitespace is not enough! This is because two-or-more-word tags are actually valid in Drupal.
This script converts the color temperature of an image. You can specify the color temperature of the original image, and the desired color temperature of the result, as well as a brightness correction factor. The script installs itself under the menu Filters/Colors/Convert Color Temperature.
This script converts the colors of an image, so that the foreground color (chosen, e.g., with the color picker tool) is either transformed to gray, or to the background color. The script can be used to remove color casts. The script installs itself under the menu Filters/Colors/White balance.
This is a plugin for GIMP version 2.x. It allows you to load and save images in DirectDraw Surface (DDS) format.
Source code and binaries for GIMP for windows can be downloaded from the home page.
Home page: http://code.google.com/p/gimp-dds/
This is a plugin for GIMP version 2.0 and above. It allows you to convert images into RGB normal maps for use in per-pixel lighting applications. The goal is to completely clone NVIDIA's photoshop plugin, with a few new useful features. Downloads can be found on the project home page.
Home page: http://code.google.com/p/gimp-normalmap/
This simple plugin allows you to change the values of each color channel of each pixel of a layer by using mathematical expressions.
It is able to handle RGB* and Gray* images. Available operators are: +, -, *, /, , and %.
There are many functions available, such as sin, cos, sqrt, abs, min, max.
A few constants are provided (pi, e, j), and a lot of pre-defined variables are usable (w for image's width, h for image's height, x and y for cartesian coordinates in the image, etc.).
It creates a effect like a blackboard painting. It is very simple, it works with three layers, the top is in hue mode, the middle is in saturation and the bottom layer has a Sobel filter and is equalized. It can work on copy. Is based on Simon Budig sample script. It has a BSD license.
Crea un efecto parecido al de pintar en una pizarra. Es simple, trabaja con tres capas, la superior está en modo tono, la del medio en modo saturación y a la inferior se la aplica un filtro Sobel y luego se ecualiza. Permite trabajar en copia y tiene una licencia BSD.