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http://dx.doi.org/10.9717/kmms.2013.16.2.119

Color Saturation Improvement using the Maximum Color Difference Table  

Kim, Sun-Jung (전남대학교 전자컴퓨터공학과)
Hong, Sung-Hoon (전남대학교 전자컴퓨터공학부(정보통신연구소))
Publication Information
Journal of Korea Multimedia Society / v.16, no.2, 2013 , pp. 119-130 More about this Journal
Abstract
In this paper, we propose a new color image enhancement method to improve the color saturation as well as luminance contrast in the YCbCr color space. The proposed method uses the maximum color difference table to compensate the perceived saturation changes due to luminance contrast changes. To improve the color saturation, the method first calculates the weighting factor by using the maximum color difference table and then multiplies the weighting factor to the input color difference signals. In this step, it maps color difference signals to proper color region to prevent the color distortion by considering the correlation of color saturations depending on the luminance and hue. The experimental results show that our method effectively improves color saturation compared to the conventional methods.
Keywords
Color image enhancement; Color saturation; Color difference signal; Over-saturation;
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Times Cited By KSCI : 1  (Citation Analysis)
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