YORK, England, Aug. 6 (UPI) --New research suggests our eyes adjust how they process color as the seasons and our visual surroundings change. Scientists at the University of York determined that human ...

A color printed from four separate printing plates. Four-color process printing uses cyan, magenta, yellow and black (CMYK) inks to produce full color reproduction. Contrast with spot color. See CMYK.

There are limits to what humans can see and how quickly they can perceive it. Some of these limits are set by the manner in which the brain processes incoming information, and it is of particular ...