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CIECAM02, CIE colour appearance model 2002

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CIECAM02, CIE colour appearance model 2002 (In French modèle d’apparence de la couleur CIE 2002) most-used color appearance model, component of among other things Apple Color-Sync and MS WCS and of the leading color management, monitor calibration and soft copy proof applications. After the actual color values of the color stimulus (whose appearance is to be simulated), of the illuminant (of the white point to be adapted) and of the environment as well as of the ambient lightness value have been entered, it calculates the following intuitive color attributes (perception parameters): hue H, lightness J, brightness Q, chroma C, colorfulness M, saturation S and chrominances ac, bc. As algorithms it offers the chromatic adaptation CIECAT02, whose subsequent adaptation (nonlinear color space compression) and the resulting changes in the perception parameters.