Color image enhancement with high saturation using piecewise linear gamut mapping
- 주제(키워드) Gamut mapping , Color enhancement , Hue preservation , Color saturation
- 주제(기타) Computer Science, Information Systems
- 주제(기타) Computer Science, Software Engineering
- 설명문(일반) [Park, Junhee; Lee, Byung-Uk] Ewha Womans Univ, Elect & Elect Engn, Seoul 03760, South Korea
- 등재 SCIE, SCOPUS
- 발행기관 ACADEMIC PRESS INC ELSEVIER SCIENCE
- 발행년도 2020
- 총서유형 Journal
- URI http://www.dcollection.net/handler/ewha/000000169429
- 본문언어 영어
- Published As https://dx.doi.org/10.1016/j.jvcir.2020.102759
초록/요약
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.
more