Uniform-color scales and RGB primaries for color-signal coding

Claudio Oleari

doi:10.1117/12.324098

7 September 1998 Uniform-color scales and RGB primaries for color-signal coding

Claudio Oleari

Proceedings Volume 3409, Electronic Imaging: Processing, Printing, and Publishing in Color; (1998) https://doi.org/10.1117/12.324098
Event: SYBEN-Broadband European Networks and Electronic Image Capture and Publishing, 1998, Zurich, Switzerland

Abstract

Recently, chromatic-response function with uniform scales are obtained as logarithms of proper cone activation ratios (CAR hypothesis) and can be considered as Cartesian coordinates for equiluminant-color palettes. Particularly, a properly combined choice of the 'fundamental' primaries, that are at the basis of these functions, and of the RGB primaries of the display give equiluminant-chromatic 'rectangular' palettes, that with the Weberian-lightness define a color space with good scale uniformity and suitable for the color-signal coding. All the transformations are logarithmic. The couple of 'fundamental' primaries laying on the alychne and a third one of pure luminance are considered for trichromatic cameras.

Citation Download Citation

Claudio Oleari "Uniform-color scales and RGB primaries for color-signal coding", Proc. SPIE 3409, Electronic Imaging: Processing, Printing, and Publishing in Color, (7 September 1998); https://doi.org/10.1117/12.324098

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