A Hybrid Framework for Underwater Image Enhancement
Underwater captured images often suffer from poor visibility caused by two major degradations: scattering and absorption. In this paper, we propose a hybrid framework for underwater image enhancement, which unifies underwater white balance and variational contrast and saturation enhancement. In our...
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doaj-12cf5654c0d946449c93ad51c6b1efac2021-03-30T04:17:36ZengIEEEIEEE Access2169-35362020-01-01819744819746210.1109/ACCESS.2020.30342759242235A Hybrid Framework for Underwater Image EnhancementXinjie Li0Guojia Hou1https://orcid.org/0000-0001-6509-6259Lu Tan2https://orcid.org/0000-0002-3361-3060Wanquan Liu3https://orcid.org/0000-0003-4910-353XCollege of Computer Science and Technology, Qingdao University, Qingdao, ChinaCollege of Computer Science and Technology, Qingdao University, Qingdao, ChinaSchool of EECMS, Curtin University, Perth, WA, AustraliaSchool of EECMS, Curtin University, Perth, WA, AustraliaUnderwater captured images often suffer from poor visibility caused by two major degradations: scattering and absorption. In this paper, we propose a hybrid framework for underwater image enhancement, which unifies underwater white balance and variational contrast and saturation enhancement. In our framework, the improved underwater white balance (UWB) algorithm is integrated with histogram stretching, aiming to better compensate the attenuation difference along the propagation path and remove undesired color castings. In addition, a variational contrast and saturation enhancement (VCSE) model is developed based on the enhanced result obtained from UWB. The advantages of VCSE model lie in the improvements of contrast and saturation as well as the elimination of hazy appearance induced by scattering. Moreover, we design a fast Gaussian pyramid-based algorithm to speed up the solving of VCSE model. The improvements achieved by our method include the more effective in color correction, haze removal and detail clarification. Extensive qualitative and quantitative assessments demonstrate that the proposed approach obtains high quality outcomes, which outperforms several state-of-the-art methods. Application tests further verify the effectiveness and broad application prospects of our proposed method.https://ieeexplore.ieee.org/document/9242235/Hybrid frameworkdehazingunderwater white balancevariational contrast and saturation enhancement |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Xinjie Li Guojia Hou Lu Tan Wanquan Liu |
spellingShingle |
Xinjie Li Guojia Hou Lu Tan Wanquan Liu A Hybrid Framework for Underwater Image Enhancement IEEE Access Hybrid framework dehazing underwater white balance variational contrast and saturation enhancement |
author_facet |
Xinjie Li Guojia Hou Lu Tan Wanquan Liu |
author_sort |
Xinjie Li |
title |
A Hybrid Framework for Underwater Image Enhancement |
title_short |
A Hybrid Framework for Underwater Image Enhancement |
title_full |
A Hybrid Framework for Underwater Image Enhancement |
title_fullStr |
A Hybrid Framework for Underwater Image Enhancement |
title_full_unstemmed |
A Hybrid Framework for Underwater Image Enhancement |
title_sort |
hybrid framework for underwater image enhancement |
publisher |
IEEE |
series |
IEEE Access |
issn |
2169-3536 |
publishDate |
2020-01-01 |
description |
Underwater captured images often suffer from poor visibility caused by two major degradations: scattering and absorption. In this paper, we propose a hybrid framework for underwater image enhancement, which unifies underwater white balance and variational contrast and saturation enhancement. In our framework, the improved underwater white balance (UWB) algorithm is integrated with histogram stretching, aiming to better compensate the attenuation difference along the propagation path and remove undesired color castings. In addition, a variational contrast and saturation enhancement (VCSE) model is developed based on the enhanced result obtained from UWB. The advantages of VCSE model lie in the improvements of contrast and saturation as well as the elimination of hazy appearance induced by scattering. Moreover, we design a fast Gaussian pyramid-based algorithm to speed up the solving of VCSE model. The improvements achieved by our method include the more effective in color correction, haze removal and detail clarification. Extensive qualitative and quantitative assessments demonstrate that the proposed approach obtains high quality outcomes, which outperforms several state-of-the-art methods. Application tests further verify the effectiveness and broad application prospects of our proposed method. |
topic |
Hybrid framework dehazing underwater white balance variational contrast and saturation enhancement |
url |
https://ieeexplore.ieee.org/document/9242235/ |
work_keys_str_mv |
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