Definitions for "Indexed color"
Keywords:  palette, lookup, pseudocolor, rgb, gif
a data structure for representing color images using a color lookup table, capable of a smaller number of total colors than the RGB system
A system where an image is represented by creating a lookup table of colors, then representing each PIXEL as a number in that lookup table. Indexed color images can contain at most 256 discrete colors. GIF images are one example of indexed color images.
See pseudocolor.