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Inverse Characterization Method Based on 9 Channel Tone Response Curves for Display Device  

Im, Hye-Bong (School of Electrical Engineering and Computer Science, Kyungpook National University)
Cho, Yang-Ho (School of Electrical Engineering and Computer Science, Kyungpook National University)
Park, Kee-Hyon (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.42, no.5, 2005 , pp. 85-94 More about this Journal
Abstract
Display characterization, deriving the relationship between digital input values and the corresponding CIEXYZ tri-stimulus values, is important to reproduce the accurate color in color management system. The relationship can be estimated from the nine channel TRCs(tone response curves) and the result of this characterization method is better than that of using three channel TRCs. However, the inverse display characterization using nine channel TRCs cannot be directly inverted because the CIEXYZ values corresponding to each of RGB values are inseparable. Accordingly, inverse display characterization is usually implemented by the 3D-LUT (look-up table) method. Although the result of 3B-LUT is accurate, creating the 3D-LUT requires a lot of memory space and considerable amount of measurements. Therefore the inverse characterization method is proposed based on the modeling of channel-dependent values and nine channel inverse process based on the GOG(gain, offset gamma) model. The proposed method enhances the accuracy of display characterization and reduces the complexity and the number of measurements data required for accuracy in 3-D LUT.
Keywords
디스플레이 특성화;채널 응답 곡선;GOG 모델;3차원 참조표;
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Times Cited By KSCI : 1  (Citation Analysis)
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