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Single underwater image enhancement based on color cast removal and visibility restoration

[+] Author Affiliations
Chongyi Li, Jichang Guo, Bo Wang, Runmin Cong

Tianjin University, School of Electronic Information Engineering, No. 92, Weijing Road, Nankai District, Tianjin 300072, China

Yan Zhang

Tianjin University, School of Electronic Information Engineering, No. 92, Weijing Road, Nankai District, Tianjin 300072, China

Tianjin Chengjian University, School of Electronic Information Engineering, No. 26, Jinjing Road, Xiqing District, Tianjin 300384, China

Jian Wang

Tianjin University, School of Electronic Information Engineering, No. 92, Weijing Road, Nankai District, Tianjin 300072, China

National Ocean Technology Center, No. 60, Xianyang Road, Nankai District, Tianjin 300072, China

J. Electron. Imaging. 25(3), 033012 (Jun 09, 2016). doi:10.1117/1.JEI.25.3.033012
History: Received February 5, 2016; Accepted May 20, 2016
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Abstract.  Images taken under underwater condition usually have color cast and serious loss of contrast and visibility. Degraded underwater images are inconvenient for observation and analysis. In order to address these problems, an underwater image-enhancement method is proposed. A simple yet effective underwater image color cast removal algorithm is first presented based on the optimization theory. Then, based on the minimum information loss principle and inherent relationship of medium transmission maps of three color channels in an underwater image, an effective visibility restoration algorithm is proposed to recover visibility, contrast, and natural appearance of degraded underwater images. To evaluate the performance of the proposed method, qualitative comparison, quantitative comparison, and color accuracy test are conducted. Experimental results demonstrate that the proposed method can effectively remove color cast, improve contrast and visibility, and recover natural appearance of degraded underwater images. Additionally, the proposed method is comparable to and even better than several state-of-the-art methods.

© 2016 SPIE and IS&T

Citation

Chongyi Li ; Jichang Guo ; Bo Wang ; Runmin Cong ; Yan Zhang, et al.
"Single underwater image enhancement based on color cast removal and visibility restoration", J. Electron. Imaging. 25(3), 033012 (Jun 09, 2016). ; http://dx.doi.org/10.1117/1.JEI.25.3.033012


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