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Proceedings Paper

Uniform-color scales and RGB primaries for color-signal coding
Author(s): Claudio Oleari
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Paper 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.

Paper Details

Date Published: 7 September 1998
PDF: 10 pages
Proc. SPIE 3409, Electronic Imaging: Processing, Printing, and Publishing in Color, (7 September 1998); doi: 10.1117/12.324098
Show Author Affiliations
Claudio Oleari, INFM (Italy) and Univ. degli Studi di Parma (Italy)


Published in SPIE Proceedings Vol. 3409:
Electronic Imaging: Processing, Printing, and Publishing in Color
Jan Bares, Editor(s)

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