The Decoding Model: A Symmetrical Model of Color Vision

By Chen-Guang Lu

Abstract: A symmetrical model of color visions--the decoding model--has been established for us to understand color vision better. It adopts new continuous value logic or fuzzy logic and works in a way very similar to the way a 3-8 decoder in a numerical circuit does. Unlike a popular zone model of color vision, the decoding model has four pairs of opponent colors: blue-yellow, green-magenta, red-cyan and white-black instead of three pairs: red-green, blue-yellow and white-black. By the decoding model, the evolution of color vision, color blindness and the perception of color appearance can be explained more concisely; Young and Helmholtz's tri-pigment theory and Hering's opponent theory can be unified more naturally.

Key words: color vision, color blindness, evolution of color vision, opponent process, fuzzy logic, symmetry.

Click here for Complete paper....  Click her for popular zone model...

Three zones and opponent processing of color vision