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Author

Kwak, Youngshin
Color & Imaging Sciecne Lab
Research Interests
  • Color engineering, Affective engineering

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Contrast-Preserved Chroma Enhancement Technique using YCbCr Color Space

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Title
Contrast-Preserved Chroma Enhancement Technique using YCbCr Color Space
Author
Lee, SooyeonKwak, YoungshinKim, Youn JinPark, SeHyeokKim, Jaehyun
Keywords
Contrast Enhancement; Enhancement algorithms; Enhancement techniques; Image contrasts; Image processing technique; Non-orthogonality; Psychophysical; Visual attributes; YCbCr; Ycbcr color spaces
Issue Date
201205
Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
Citation
IEEE TRANSACTIONS ON CONSUMER ELECTRONICS, v.58, no.2, pp.641 - 645
Abstract
The YCbCr color space is widely used in image processing techniques. The preference for YCbCr is due to the rough correspondence between the YCbCr components and visual attributes. However, image contrast decreases as the chroma value increases owing to the non-orthogonality between YCbCr components. In this study, a contrast-preserved chroma enhancement algorithm using YCbCr signals is proposed by predicting the amounts of luma change needed to compensate for the lightness change induced by chroma enhancement. Numerical and psychophysical experimental results show that the proposed algorithm can effectively enhance the perceived image chroma and details.
URI
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DOI
http://dx.doi.org/10.1109/TCE.2012.6227471
ISSN
0098-3063
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