An alternative to the von Kries scaling underlying the chromatic adaptation transforms found in colour appearance models such as CIECAM02 is suggested for predicting what the colour signal (e.g., XYZ) reflected from a surface under a first illuminant is likely to become when lit instead by a second illuminant. The proposed method, G2M, employs metameric Gaussian-like functions to model the illuminant and reflectance spectra. The method’s prediction is based on relighting the Gaussian-like reflectance spectrum with the second Gaussian-like illuminant. Tests show that the proposed G2M method significantly outperforms CIECAT02.
Presented at the CIC'22 Color Imaging Conference, November, 2014.
Funt, B., and Mirzaei, H. "Gaussian Illuminants and Reflectances for Colour Signal Prediction." Proceedings of CIC'22 Color Imaging Conference, Society for Imaging Science and Technology, Nov. 2014
Proceedings of CIC'22 Color Imaging Conference, Society for Imaging Science and Technology
Gaussian Illuminants and Reflectances for Colour Signal Prediction
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