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Proceedings Paper

Gamut mapping for color simulation on CRT devices
Author(s): Gabriel G. Marcu; Satoshi Abe
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Paper Abstract

The gamut mapping procedures transform the colors of the original image into the colors that can be reproduced by another device, according with different reproduction criteria. This paper discusses three gamut mapping procedures: gamut clipping, white shifting technique recently introduced by Konica, and an example of UltraColor technique used by Kodak. A new proposed method that maps the out of gamut colors to the gamut colors based on the morphing technique along the constant angle direction or constant device hue in CIELAB or CIELUV is investigated. The mapping procedures dependent on the content of the image are compared with the procedures based only on the device to device gamut mapping. The image dependent mapping procedures exploit more efficiently the potential of adaptation of the observer eye to the contrast of the image than the device mapping methods and conduct to better results. A 3D rendering procedure is used to illustrate different gamut devices and to compare the effect of mapping procedures. The CIELAB and CIELUV color spaces are compared for optimum performance of mapping of the outside gamut colors from one device to another. The mapping methods dependent on the content of the image are evaluated using the 3D histogram visualization technique simultaneously with the gamut visualization. The techniques are applied for simulation on the CRT of the different reproduction media.

Paper Details

Date Published: 29 March 1996
PDF: 8 pages
Proc. SPIE 2658, Color Imaging: Device-Independent Color, Color Hard Copy, and Graphic Arts, (29 March 1996); doi: 10.1117/12.236980
Show Author Affiliations
Gabriel G. Marcu, Array Corp. (United States)
Satoshi Abe, Univ. of Tokyo (Japan)

Published in SPIE Proceedings Vol. 2658:
Color Imaging: Device-Independent Color, Color Hard Copy, and Graphic Arts
Jan Bares, Editor(s)

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