Repairing Gamut Problems in CIECAM02: A Progress Report

The color-appearance model CIECAM02 has several problems, which can result in mathematical instabilities, due to the relation of the chromatic-adaptation primaries to the spectrum locus and to the presumed physiological cone primaries. To keep a corresponding color within the positive gamut given by the chromatic adaptation primaries, that gamut must lie within the cone primary octant. To contain a color that is already outside the gamut, it suffices to algebraically prevent adaptation from moving a test color outside the positive octant of the physiological cone space. Such modifications may be needed to avoid the mathematical problems in CIECAM02.


Published in:
Color Research and Applications, 33, 5, 424-426
Year:
2008
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Note:
Erratum: The first line after "Mathematics of CIECAM02" should read "The FIRST steps in the CIECAM02 algorithm..."
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 Record created 2007-09-11, last modified 2018-03-17

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