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Proceedings Paper

Optimal chromaticities of the primaries for wide gamut 3-channel display
Author(s): Youngshin Kwak; Seong-Deok Lee; Wonhee Choe; Chang-Yeong Kim
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Paper Abstract

The theoretical approach is introduced to design the optimal chromaticities for primaries of a display with a given size of triangular color gamut in xy-plane. Optimal primaries are defined as a set of chromaticities of red, green and blue primaries with fixed white point that most optimally satisfying four criteria, i.e. gamut size, gamut shape, coverage of object colors and hue of the primaries, in the visually uniform color space, CIECAM02. It is assumed that the optimal gamut should cover that of sRGB and have similar maximum chroma for each hue. The number of SOCS data located outside the gamut is used as a criterion to judge the coverage of object colors. Also it is set the hues of primaries to be close to those of sRGB. The simulation results showed that the optimal primaries for 85% of NTSC area have similar points with sRGB for red and blue, and green primary is located in between sRGB and NTSC. For 100% of NTSC area, the optimal chromaticities are located near those of NTSC for red and green and that of sRGB for blue.

Paper Details

Date Published: 17 January 2005
PDF: 9 pages
Proc. SPIE 5667, Color Imaging X: Processing, Hardcopy, and Applications, (17 January 2005); doi: 10.1117/12.587338
Show Author Affiliations
Youngshin Kwak, Samsung Advanced Institute of Technology (South Korea)
Seong-Deok Lee, Samsung Advanced Institute of Technology (South Korea)
Wonhee Choe, Samsung Advanced Institute of Technology (South Korea)
Chang-Yeong Kim, Samsung Advanced Institute of Technology (South Korea)

Published in SPIE Proceedings Vol. 5667:
Color Imaging X: Processing, Hardcopy, and Applications
Reiner Eschbach; Gabriel G. Marcu, Editor(s)

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