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J Opt Soc Am A Opt Image Sci Vis. 1993 Oct;10(10):2166-80.

Color constancy. II. Results for two-stage linear recovery of spectral descriptions for lights and surfaces.

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  • 1Department of Cognitive Sciences, University of California, Irvine 92717.


Our analysis of color constancy in a companion paper [J. Opt. Soc. Am A 10, 2148 (1993)] provided an algorithm that lets one test how well linear color constancy schemes work. Here we present the results of applying the algorithm to a large parametric class of color constancy problems involving bilinear models that relate photoreceptoral spectral sensitivities, surface reflectance functions, and illuminant spectral power distributions. These results, supported by simulation and further analysis, provide a detailed classification of two-stage linear methods for recovering the spectral properties of reflectances and illuminants from reflected lights.

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