G NU Image Manipulation Program (GIMP) is the longtime open-source photo editing alternative to Adobe’s category-leading ...

GIMP, the popular open-source image manipulation program, includes a number of built-in lighting and shadow effects. One of these, called "Supernova," creates radiating beams of photo-realistic light ...

If you work with The GIMP enough, you'll eventually need to key an image from a green (or blue) screen and place that image into another layer. Chromakey (or green screen) has been a fundamental ...