COLOR GAMUT TRANSFORM PAIRS.

Abstract

A set of alternative models of the RGB monitor gamut based on the perceptual variables hue (H), saturation (S), and value (V) or brightness (L) is presented. Algorithms for transforming between these models are derived. Particular emphasis is placed on an RGB to HSV nontrigonometric pair of transforms which have been used successfully for about four years in frame buffer painting programs. These are fast, accurate, and adequate in many applications. Computationally more difficult transform pairs are sometimes necessary, however. Guidelines for choosing among the models are provided.