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A Study on the Gamut Mapping Method of the Wide Gamut Display Device  

Um Jinsub (Video Lab, A/V Solution team, Digital Media R&D Center, Samsung Electronics)
Shin Yoonchol (Video Lab, A/V Solution team, Digital Media R&D Center, Samsung Electronics)
Kim Moonchol (Video Lab, A/V Solution team, Digital Media R&D Center, Samsung Electronics)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SP / v.42, no.2, 2005 , pp. 69-80 More about this Journal
Abstract
In these days, the technology development of the imaging/optic industry and the digital broadcasting replace the classic CRT with the new display devices that is getting slimmer and larger. Especially, when the general TV signal is applied directly to the wide gamut display using LED or laser, which can display higher chromatic colors that can't be reproduced on CRT, the color distortion occurs and it causes serious problems. Thus, in this paper the gamut mapping is studied, which gets rids of the color distortion and utilizes the wider color gamut than that of the CRT sufficiently. In the gamut mapping the general mapping concept is the increasement of the chroma on the same hue plane but it causes the over chromatic enhancement. So, the vector mapping, which increases the lightness md the chroma at the same time, is proposed to prevent the side effect. In the vector mapping the chromaticity is maintained constantly, hence the image can be seen more natural than that of the chroma mapping. By using the gamut fitting, it is compensated that the tone disappearance or the contour effect that is arose from the geometric properties of the input and the output color gamut. These gamut mapping and gamut fitting can prevent the color distortion and reproduce the natural image on the wide gamut displays.
Keywords
color gamut; gamut mapping; wide color gamut display;
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Times Cited By KSCI : 1  (Citation Analysis)
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