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Choi, Duk-Kyu;Han, Chan-Ho;Lee, Kuhn-Il;Sohng, Kyu-Ik
- Journal of the Korean Institute of Telematics and Electronics S
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- v.35S no.11
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- pp.133-143
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- 1998
The viewers primarily watch a television under the surround light source of an incandescent or a fluorescent light. When human visual system has been adapted chromtically under the different surround light, the same chromaticities elicit quite different color appearnaces. Therefore, the corresponding color reproduction is the most suitable objective of a color television system. In this paper, an efficient corresponding color reproduction method based on the chromatic adaptation of human visual system is proposed in which colors in the display have the same appearance as the colors in the original would have had if they had been illuminated by standard illuminant ($D_{65}$). The chromaticities that appeared neutral in human visual system were determined by the Hunt's experimental results of the color adaptation in picture viewing situations and the corresponding chromaticity coordinates of stimuli in chromatic adaptation were obtained by the Bartleson's theory. Also, the corresponding color reproduction is realized by changing the phase and the gain of the demodulation axes in television receiver. Experimental results show that the proposed corresponding color displayed on the television is better than that of the conventional colorimetric color reproduction under the surround light sources.
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한국전기제품안전진흥회
- Product Safety
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- s.48
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- pp.41-59
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- 1996
가전기기의 붐은 가계에 상당한 부담을 주고 있으나, 한편으로는 주부들로 하여금 가사노동으로 부터의 해방은 물론 보건, 오락 및 여유있는 생활을 즐길수 있게 하였다. 이제는 많은 가전제품에도 마이컴이 탑재되어 가정이나 직장에서 OA나 퍼스컴 통신 또는 패미컴 게임 등등 소위 '고도 정보화 사회'로 접어들어 첨단산업이 세계를 지배하는 시대가 되었다. 따라서 이 시대에 사는 사람이라면 누구나 전기$\cdot$전자 제품에 관한 전문적인 학습
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