Using recovered reflectance to predict color

Silvia Zuffi; Raimondo Schettini

doi:10.1117/12.586946

17 January 2005 Using recovered reflectance to predict color

Silvia Zuffi, Raimondo Schettini

Proceedings Volume 5667, Color Imaging X: Processing, Hardcopy, and Applications; (2005) https://doi.org/10.1117/12.586946
Event: Electronic Imaging 2005, 2005, San Jose, California, United States

Abstract

In many applications, it is requested to compute surface color appearance under different illuminants. If multispectral information about surface reflectance is available, the calculus of tristimulus values under illuminants of specified SPD is straightforward. When only colorimetric information is known, the illuminant change is performed adopting transforms based on the Von Kries scaling model (i.e. the Bradford transform). Unfortunately, the three dimensional colorimetric space may be limited for properly computing the change in appearance of colors due to a change of illuminant. In this paper, a solution to this problem is presented. Assumption of the proposed method is that the problem is specific for a domain of colors, and that this domain can be modeled in a three dimensional Gaussian space. Given the domain Gaussian space, colors may be represented through synthesized reflectance spectra. Exploiting synthesized reflectance is proved to be an effective strategy to implement an illuminant change transform.

Citation Download Citation

Silvia Zuffi and Raimondo Schettini "Using recovered reflectance to predict color", Proc. SPIE 5667, Color Imaging X: Processing, Hardcopy, and Applications, (17 January 2005); https://doi.org/10.1117/12.586946

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