Publication: Analysing observer metamerism in CIECAM02 using real observers
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2008-06
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Society for Imaging Science and Technology
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Abstract
Given a fixed set of viewing conditions, a colour appearance model provides a method for transforming tristimulus values to perceptual attributes correlates, and vice versa. Current colour appearance models, like C1ECAM02 [1], have been developed assuming the C1E31 Standard Observer. However a general model must adequately describe the colorimetric behaviour of a large enough set of real observers. In this work we analyse the variability of the different parameters defined by C1ECAM02 when different sets of colour-matching functions associated with real observers are considered. All our sets of colour-matching functions are for small-size fields (smaller than 4°). Our main goal is to evaluate the observer metamerism provided in C1ECAM02 for a set of 13 real observers, when the reflectances of the 24 chips of the Gretag Macbetch ColorChecker are illuminated under D65 and A illuminants.
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4th European Conference on Colour in Graphics, Imaging, and Vision and 10th International Symposium on Multispectral Colour Science, CGIV 2008/MCS'08; Terrassa; Spain; 9 June 2008 through 13 June 2008