Title
Low-Light Image Enhancement Based on Constrained Norm Estimation.
Abstract
Low-light images often suffer from poor quality and low visibility. Improving the quality of low-light image is becoming a highly desired subject in both computational photography and computer vision applications. This paper proposes an effective method to constrain the illumination map t by estimating the norm and constructing the constraint coefficients, which called LieCNE. More specifically, we estimate the initial illumination map by finding the maximum value of R, G and B channels and optimize it by norm estimation. We propose a function t. to contain the exponential power. in order to optimize the enhancement effect under different illumination conditions. Finally, a new evaluation criterion is also proposed. We use the similarity with the true value to determine the enhanced effect. Experimental results show that LieCNE exhibits better performance under a variety of lighting conditions in enhancement results and image spillover prevention.
Year
DOI
Venue
2017
10.1007/978-981-10-7299-4_30
Communications in Computer and Information Science
Keywords
DocType
Volume
Low-light image enhancement,Illumination optimization,Norm estimate,Quadtree algorithm
Conference
771
ISSN
Citations 
PageRank 
1865-0929
0
0.34
References 
Authors
0
4
Name
Order
Citations
PageRank
Tan Zhao100.34
Hui Ding2888.86
Yuanyuan Shang321016.83
Xiuzhuang Zhou438020.26