Patent ID: 7280116

Claim:
A method for preprocessing video display pixel data comprising the steps of: providing a preprocessor having a selectable gamma correction mode and a selectable palette look-up mode; receiving a pixel data word; and for a pixel data word consisting of more than 8 bits, selecting preprocessor gamma correction mode, whereby the preprocessor performs the further steps of; parsing the pixel data word into red, green, and blue components; performing gamma correction on each of the red, green, and blue components; concatenating the gamma-corrected red, green, and blue components; and outputting a gamma-corrected preprocessed pixel data word; for a pixel data word consisting of 8 bits or less, selecting preprocessor palette look-up mode, whereby the preprocessor performs the further steps of; parsing the pixel data word into red, green, and blue components; performing a palette look-up for each of the red, green, and blue components; concatenating the paletted red, green, and blue components; and outputting a paletted preprocessed pixel data word.