Color Vision
Color vision is a process by which organisms and machines are able to distinguish objects based on the different wavelengths of light reflected, transmitted, or emitted by that object. In humans light is received by the eye where two types of photoreceptors, cones and rods, send signals to the visual cortex which in turn processes those sensations into a subjective perception of color. Color constancy is a process that allows the brain to recognize a familiar object as being a consistent color regardless of the amount of light reflecting from it at a given moment.
Read more about this topic: Color Constancy
Famous quotes containing the words color and/or vision:
“The most refined skills of color printing, the intricate techniques of wide-angle photography, provide us pictures of trivia bigger and more real than life. We forget that we see trivia and notice only that the reproduction is so good. Man fulfils his dream and by photographic magic produces a precise image of the Grand Canyon. The result is not that he adores nature or beauty the more. Instead he adores his camera—and himself.”
—Daniel J. Boorstin (b. 1914)
“I have a Vision of the Future, chum.
The workers’ flats in fields of soya beans
Tower up like silver pencils, score on score.”
—Sir John Betjeman (1906–1984)