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Improving color constancy of object colors

Improving color constancy of object colors In a study of improving the color constancy of object colors, the spectral reflectances of the eight CIE color‐rendering test samples (Munsell painted papers) were chosen as reference reflectance distributions. Many other distributions, more highly structured than those of the reference set, were synthesized by computer so as to be rendered by illuminant D65 at the chromaticity at which one or another of the CIE‐Munsell samples is rendered by D65. The chromaticities, at which each of the synthesized reflectances is rendered by each of 30 additional illuminants, define both dominant wavelength and chroma vector for the resulting 50,000 illuminant–sample combinations. For most natural illuminants, and for present commercial lamplights, color constancy is maximized by synthesizing each sample reflectance from three relatively narrow components, 50–60 nm at half height, peaking at wavelengths near 450 nm, 530 nm, and 610 nm. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Color Research & Application Wiley

Improving color constancy of object colors

Color Research & Application , Volume 11 (4) – Dec 1, 1986

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References (7)

Publisher
Wiley
Copyright
Copyright © 1986 Wiley Periodicals, Inc., A Wiley Company
ISSN
0361-2317
eISSN
1520-6378
DOI
10.1002/col.5080110409
Publisher site
See Article on Publisher Site

Abstract

In a study of improving the color constancy of object colors, the spectral reflectances of the eight CIE color‐rendering test samples (Munsell painted papers) were chosen as reference reflectance distributions. Many other distributions, more highly structured than those of the reference set, were synthesized by computer so as to be rendered by illuminant D65 at the chromaticity at which one or another of the CIE‐Munsell samples is rendered by D65. The chromaticities, at which each of the synthesized reflectances is rendered by each of 30 additional illuminants, define both dominant wavelength and chroma vector for the resulting 50,000 illuminant–sample combinations. For most natural illuminants, and for present commercial lamplights, color constancy is maximized by synthesizing each sample reflectance from three relatively narrow components, 50–60 nm at half height, peaking at wavelengths near 450 nm, 530 nm, and 610 nm.

Journal

Color Research & ApplicationWiley

Published: Dec 1, 1986

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