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W. Thornton (1972)
Three-color visual response.Journal of the Optical Society of America, 62 3
W. Thornton (1977)
The Design of Safety-ColorsJournal of The Illuminating Engineering Society, 6
Takahama Takahama, Nayatani Nayatani (1973)
Derivation of spectral‐reflectance functions of object colors with good color constancyActa Chromatica, 2
R. Berns, F. Billmeyer, R. Sacher (1985)
Methods for generating spectral reflectance functions leading to color‐constant propertiesColor Research and Application, 10
Thornton Thornton (1986)
Note on visual responses: system vs retinalColor Res. Appl., 11
Thornton Thornton (1972)
Relating commercial uses of color to human color visionWestinghouse Eng., 32
Thornton Thornton (1978)
The psychophysics of image colorationPhotogr. Sci. Eng., 22
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.
Color Research & Application – Wiley
Published: Dec 1, 1986
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