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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, Junhee; Lee, Byung-Uk
- Ewha Authors
- 이병욱
- SCOPUS Author ID
- 이병욱
- Issue Date
- 2020
- Journal Title
- JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION
- ISSN
- 1047-3203
1095-9076
- Citation
- JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION vol. 67
- Keywords
- Gamut mapping; Color enhancement; Hue preservation; Color saturation
- Publisher
- ACADEMIC PRESS INC ELSEVIER SCIENCE
- Indexed
- SCIE; 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. (C) 2020 Elsevier Inc. All rights reserved.
- DOI
- 10.1016/j.jvcir.2020.102759
- Appears in Collections:
- 공과대학 > 전자전기공학전공 > Journal papers
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