Corresponding-Color Reproduction Model According to Surround Viewing Conditions(<Special Section>Papers Selected from 2003 International Technical Conference on Circuits/Systems, Computers and Communications(ITC-CSCC 2003))

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概要

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• In this paper, a simple and practical corresponding-color reproduction model based on the chromatic adaptation of the human visual system (HVS), named a modified von Kries chromatic-adaptation model, is proposed for TV and PC monitors under a variety of viewing conditions. We derived the proposed corresponding-color reproduction model based on Breneman's corresponding-color data. The proposed model has a 1-2% less error than Fairchild's and Breneman's model, 11.5% less error than von Kries' model and 60% less error than CIECAM97s' model in terms of color reproduction errors, (ΔE^*_<uv>)'. Also, these tendency is similar in color reproduction errors, ΔE^*_<ab>. We implemented a corresponding-color reproduction system using the proposed model under a variety of viewing conditions. For the determination of viewing conditions, illuminant correlated color temperatures (CCTs) are measured by yellow/cyan sensors. These measured surround illuminant CCTs can estimate an adaptated neutral point of the HVS in TV viewing conditions. Experiments were carried out to assess the proposed model performance in terms of color fidelity by comparing complex images on a LCD monitor under illuminants from 2500K to 7500 K. We confirmed that the implemented system using the proposed model can predict corresponding-color data very well under a variety of viewing conditions. Therefore, by applying the proposed model and system to the LCD, the reproduction colors viewed in real surrounding viewing conditions on the LCD could appear the same as the original object colors under standard viewing conditions. Furthermore, they could be applied to any other color display device such as a CRT, a PDF, and a DLP in order to get better reproduction colors.

• 社団法人電子情報通信学会の論文
• 2004-06-01

著者

• Sohng Kyu-Ik

  School of Electrical Engineering and Computer Science, Kyungpook National University

• HAN Chan-Ho

  School of Electrical Engineering and Computer Science, Kyungpook National University

• KIM Eun-Su

  Department of Electronic Engineering, Sunmoon University

• JANG Soo-Wook

  School of Electrical Engineering and Computer Science, Kyungpook National University

• Kim Eun-su

  Department Of Electronic Engineering Sunmoon University

• Han Chan-ho

  School Of Electrical Engineering And Computer Science Kyungpook National University

• KIM Eun-Su

  School of Electrical Engineering and Computer Science, Kyungpook National University

• Kwon Yong-dae

  Korea Credit Guarantee Fund

• Jang Soo-wook

  School Of Electrical Engineering And Computer Science Kyungpook National University

• Sohng Kyu-ik

  School Of Electrical Engineering And Computer Science Kyungpook National University

• Sohng Kyu‐ik

  Kyungpook National Univ. Kor

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