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Analysing observer metamerism in CIECAM02 using real observers

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Ezquerro Rodríguez, José Miguel and Zoido Chamorro, Jesús Manuel and Perales, Esther and Martínez Verdú, Francisco M. and Melgosa Latorre, Manuel (2008) Analysing observer metamerism in CIECAM02 using real observers. In CGIV 2008 / MCS/08 4th European Conference on Colour in Graphics, Imaging, and Vision ; 10th International Symposium on Multispectral Colour Science : final program and proceedings. Society for Imaging Science and Technology, pp. 31-35. ISBN 978-0-89208-262-6

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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.


Item Type:Book Section
Additional Information:

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

Uncontrolled Keywords:Observers; Metamerism; CIECAM02; Color vision; Color appearance models; Matching functions; Color computer graphics; Tristimulus values
Subjects:Sciences > Physics > Optics
Medical sciences > Optics > Color
ID Code:46336
Deposited On:06 Feb 2018 10:18
Last Modified:06 Feb 2018 10:18

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