Heuristic approach to selecting a color appearance model for hue‐preserved wide‐color gamut mapping |
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| Authors: | Kenichiro Masaoka Takayuki Yamashita Yukihiro Nishida Masayuki Sugawara |
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| Affiliation: | NHK Science & Technology Research Laboratories, Setagaya, Tokyo, Japan |
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| Abstract: | 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. |
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| Keywords: | gamut mapping Rec 2020 |
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