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Characterization and Color Reproduction Based on Average Picture Level if PDP Displays  

Kwon, Oh-Seol (School of Electrical Engineering and Computer Science, Kyungpook National University)
Ko, Kyung-Woo (School of Electrical Engineering and Computer Science, Kyungpook National University)
Ha, Yeong-Ho (School of Electrical Engineering and Computer Science, Kyungpook National University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SP / v.45, no.5, 2008 , pp. 9-17 More about this Journal
Abstract
This paper proposes a method of color reproduction considering the viewing conditions of a PDP TV. Because of a change of peripheral environments by a temporal and spatial location of observers, the ambient lightings should be considered in the process of color reproduction of displays. A conventional method enhances the contrast and saturation of images by controlling voltage gains in each channel, so that there is a limit to implementing the phenomenon of human adaptation. This method also faces difficulties in reproducing the perceived colors under a variety of viewing conditions. Accordingly, in order to solve this problem, we first characterize the device by considering the brightness and the flare effect. The chromatic adaptation is finally applied to reproduce colors in a PDP TV using the information from the viewing conditions by the sensor. The images reproduced by the proposed method are visually more superior to those reproduced by a conventional method in the experiments.
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