Gamut Mapping

Gamut mapping regarded as a color transformation from the color capacity of one device to another has reached a satisfying degree of maturity is discussed. Colorimetry is the branch of color science, which quantifies and describes physically human color perception specifying numerically the colors of physically defined visual stimuli in fixed viewing conditions. Many other well-known RGB color spaces, such as RGB, Adobe 98-RGB, and ECI-RGB, are also derived from RGB and should be understood as mathematically equivalent. If gamut mapping is regarded as a color image transformation from the color capacity of one device to another, there still is potential for significant improvement in terms of perceived image quality. Several studies have shown that not all color directions are equally important for gamut mapping. The human eye is more sensitive to hue changes than saturation or lightness.