Saturday, December 1, 2007

Color Shift


Yet another experimental video. Here the colors are shifted instead of inverted. Inversions change red to an absence of red and vice versa, like a photographic negative. Here I am shifting the red to blue, the green to red, and the blue to green. In the computer, colors are just numbers, and I can do whatever I want with them, including shifting them around.

What I like about this effect is that blacks, grays and whites are unaffected. They contain equal amounts of red, green and blue, so shifting the colors around doesn't change anything. An inversion, on the other hand, will change black into white and white into black.

Watch the horse. The horse has black pupils and white patches that remain constant as the horse changes from brown to purple to green. The fence post stays gray.

No comments: