• autoStitch Fully Automatic 2D Image Stitcher
  • International Color Consortium
  • International Commision on Illumination
  • Digital Exposure
  • ImageMagick
  • GIMP GNU Image Manipulation Program
  • IrfanView one of the most popular viewers worldwide
  • The Luminous Landscape (search for THE UNDERSTANDING SERIES!)
  • VIPS free image processing system
  • imaging resource
  • Steve's Digibams