The image displayed on monitors or in a graphic produced by a scanner or paint program is made up lots of dots called pixels. Collectively the number of pixels displayed is referred to as the image’s resolution. A pixel on a monitor is a number of red green and blue phosphor dots. These dots are “excited” to varying degrees by the monitor’s three electron guns and the results mix additively to generate a specific color. By manipulating large numbers of pixels in precise ways patterns emerge to make up an identifiable picture. See also: electron gun resolution texel