Heuristic approach to selecting a color appearance model for hue-preserved wide-color gamut mapping

摘要

With the advent of wide-gamut system colorimetry for ultra-high definition television, the development of a gamut mapping algorithm for wide to standard gamuts is greatly needed. Most gamut mapping techniques have been developed to retain the perceived hues of the source as predicted by a color appearance model. However, some color appearance models erroneously predict the saturated colors, generating a serious hue discontinuity in wide-color gamut mapping onto the Rec. 709 gamut boundary. This paper presents a heuristic approach to determining whether a color appearance model may create such artifacts when used in hue-preserved gamut mapping algorithms.