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Color image enhancement with high saturation using piecewise linear gamut mapping

Title
Color image enhancement with high saturation using piecewise linear gamut mapping
Authors
Park J.Lee B.-U.
Ewha Authors
이병욱
SCOPUS Author ID
이병욱scopus
Issue Date
2020
Journal Title
Journal of Visual Communication and Image Representation
ISSN
1047-3203JCR Link
Citation
Journal of Visual Communication and Image Representation vol. 67
Keywords
Color enhancementColor saturationGamut mappingHue preservation
Publisher
Academic Press Inc.
Indexed
SCIE; SCOPUS scopus
Document Type
Article
Abstract
Most of the color image enhancement algorithms are implemented in two stages: gray scale image enhancement, which finds the target intensity, and then gamut mapping of the original color coordinates to the target. Therefore, hue preserving gamut mapping is an essential and crucial step, which influences colorfulness. In conventional color mapping methods, color saturation is reduced after intensity modification, which deteriorates subjective image quality. In this paper, a new color enhancement algorithm resulting in high color saturation is proposed. The proposed method employs multiplicative and additive color mapping to improve color saturation without clipping of a color component for increased target intensity as well as decreased cases. This new scheme is fast and effective, therefore, it can be employed to real time applications such as video signal processing. © 2020 Elsevier Inc.
DOI
10.1016/j.jvcir.2020.102759
Appears in Collections:
엘텍공과대학 > 전자공학과 > Journal papers
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