期刊
JOURNAL OF VISUAL COMMUNICATION AND IMAGE REPRESENTATION
卷 45, 期 -, 页码 107-121出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jvcir.2017.02.016
关键词
Image enhancement; Contrast enhancement; Structure-texture-noise decomposition; Noise removal; Denoising; Texture retrieval; Texture enhancement
资金
- National Research Foundation of Korea (NRF) - Korea government (MSIP) [NRF-2015R1A2A1A10055037]
- MSIP, Korea, under the Information Technology Research Center (ITRC) [IITP-2016-R2720-16-0007]
A noisy low-light image enhancement algorithm based on structure-texture-noise (STN) decomposition is proposed in this work. We split an input image into structure, texture, and noise components, and enhance the structure and texture components separately. More specifically, we first enhance the contrast of the structure image, by extending a 2D-histogram-based image enhancement scheme based on the characteristics of low-light images. Then, we reconstruct the texture image by retrieving residual texture components from the noise image and enhance it by exploiting the perceptual response of the human visual system (HVS). Experimental results on both synthetic and real-world images demonstrate that the proposed STN algorithm sharpens the texture and enhances the contrast more effectively than conventional algorithms, while providing robust performance under various noise and illumination conditions. (C) 2017 Elsevier Inc. All rights reserved.
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