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Journal of Electronic Imaging

Color conversion method for multi-primary display for spectral color reproduction
Author(s): Yuri Murakami; Jun-ichiro Ishii; Takashi Obi; Masahiro Yamaguchi; Nagaaki Ohyama
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Paper Abstract

In the conventional color reproduction based on the colorimetric match for a standard observer, color mismatch can be perceived if the color matching functions of the observer deviate from those of the standard observer; this phenomenon is known as observer metamerism. Recently, multi-primary display, using more than three-primary colors, has attracted attention as a color reproduction media because of its expanded gamut and its possibility to reduce the color mismatch caused by observer metamerism. In this paper, a new color conversion method for multi-primary display that reduces the observer metamerism is proposed. The proposed method gives the multi-dimensional control value of a display device to minimize the spectral approximation error under the constraints of tristimulus match. Reproduced spectrum by a seven-primary display is simulated and evaluated by the color matching functions of Stiles's 20 observers. The results confirmed that the proposed method reduces the color reproduction error caused by observer variability compared to the other seven-primary reproduction and conventional three-primary reproduction. The preliminary visual evaluation results with a seven-primary display using light-emitting diodes are also introduced.

Paper Details

Date Published: 1 October 2004
PDF: 8 pages
J. Electron. Imaging. 13(4) doi: 10.1117/1.1785800
Published in: Journal of Electronic Imaging Volume 13, Issue 4
Show Author Affiliations
Yuri Murakami, Tokyo Institute of Technology (Japan)
Jun-ichiro Ishii, Tokyo Institute of Technology (Japan)
Takashi Obi, Tokyo Institute of Technology (Japan)
Masahiro Yamaguchi, Tokyo Institute of Technology (Japan)
Nagaaki Ohyama, Tokyo Institute of Technology (Japan)


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