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IEICE Transactions on Fundamentals of Electronics, Communications and Computer Sciences 2008 E91-A(6):1438-1442; doi:10.1093/ietfec/e91-a.6.1438
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Copyright © 2008 The Institute of Electronics, Information and Communication Engineers

Special Section on Image Media Quality - Letters

Factors of Incomplete Adaptation for Color Reproduction Considering Subjective White Point Shift for Varying Illuminant

Sung-Hak LEE1, Myoung-Hwa LEE2 and Kyu-Ik SOHNG1

1 The authors are with the School of Electrical Engineering and Computer Science, Kyungpook National University, Korea. E-mail: shak2{at}ee.knu.ac.kr, 2 The author is with TV Product Development, Development Center, LG. Philips LCD, Korea.


  Abstract

In this paper, we investigated the effect of chromaticity and luminance of surround to decide subject neutral white, and conducted a mathematical model of adapting degree for environment. Factors for adapting degree consist of two parts, adapting degree of ambient chromaticity and color saturation. These can be applied to color appearance models (CAM), actually improve the performance of color matching of CAM, hence would produce the method of image reproduction to general display systems.

Key Words: incomplete adaptation, subjective neutral, adapting degree, color saturation

Manuscript received July 4, 2007. Manuscript revised October 22, 2007.


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