Illustrate the term Color Look up table

Question

Illustrate the term Color Look up table? Explain briefly.

Answer 1

In the color displays, 24 bits per pixel are generally used, where 8 bits symbolize 256 levels for each color. It is essential to read 24- bit for each pixel from the frame buffer. This is much time consuming. To avoid this video controller employs look up table to store lots of entries to pixel values in the RGB format. This look up table is generally termed as color table.