Color image enhancement technique using gamut mapping based on color space division

Yang-Ho Cho; Yun-Tae Kim; Ho-Keun Lee; Yeong-Ho Ha

doi:10.1117/12.474879

13 January 2003 Color image enhancement technique using gamut mapping based on color space division

Yang-Ho Cho, Yun-Tae Kim, Ho-Keun Lee, Yeong-Ho Ha

Proceedings Volume 5008, Color Imaging VIII: Processing, Hardcopy, and Applications; (2003) https://doi.org/10.1117/12.474879
Event: Electronic Imaging 2003, 2003, Santa Clara, CA, United States

Abstract

This paper proposes a gamut mapping algorithm based on color space division for color reproduction of cross media. As each color device has a limited range of producible colors, the reproduced colors on a destination device are different from those of the original device. In order to reduce the color difference between those devices, the proposed method divides the whole gamut into parabolic shapes based on intersecting lightness by the “just noticeable difference” (JND) and the boundary of original gamut. By dividing the gamut with parabolic shapes and piecewise mapping of each region, it not only considers gamut characteristics but also provides for mapping uniformity. The lightness variations are more sensitive to the human visual system and by using lightness JND it can restrict lightness mapping variations that are unperceivable. As a result, the proposed algorithm is able to reproduce high quality color images using low-cost color devices.

Citation Download Citation

Yang-Ho Cho, Yun-Tae Kim, Ho-Keun Lee, and Yeong-Ho Ha "Color image enhancement technique using gamut mapping based on color space division", Proc. SPIE 5008, Color Imaging VIII: Processing, Hardcopy, and Applications, (13 January 2003); https://doi.org/10.1117/12.474879

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