Low Light Image Enhancement Network With Attention Mechanism and Retinex Model

Due to the uncertainty of the environment, the captured image may not only degrade but also have uneven brightness distribution. The quality of these images can not meet the input requirements of existing computer vision tasks, so they may lead to performance degradation in the completion of compute...

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Main Authors: Wei Huang, Yifeng Zhu, Rui Huang
Format: Article
Language:English
Published: IEEE 2020-01-01
Series:IEEE Access
Subjects:
Online Access:https://ieeexplore.ieee.org/document/9072125/
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author Wei Huang
Yifeng Zhu
Rui Huang
author_facet Wei Huang
Yifeng Zhu
Rui Huang
author_sort Wei Huang
collection DOAJ
description Due to the uncertainty of the environment, the captured image may not only degrade but also have uneven brightness distribution. The quality of these images can not meet the input requirements of existing computer vision tasks, so they may lead to performance degradation in the completion of computer vision tasks. Past methods are often only applicable to low-light images with uniform brightness distribution, and the performance of these methods is not ideal for low-light images with uneven brightness distribution. In order to solve the problems caused by these low-light images, a new low light image enhancement model based on attention mechanism and Retinex model is proposed. The proposed method first estimates the illumination mask of the input image, which guides the network to predict the illumination distribution. Then we use a module with attention mechanism to predict the illumination map, and the initial enhanced image is estimated based on Retinex model. We modify the color distortion and suppress noise with convolution layers to obtain final enhanced results. In experiments, the performance of our methods is demonstrated by compared with the state-of-the-art existing methods. Our approach has more positive performance in some scenarios, especially uneven lighting.
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spelling doaj.art-0e4cba8e8c8f465f9c29cbf0bb8f20982022-12-21T18:12:39ZengIEEEIEEE Access2169-35362020-01-018743067431410.1109/ACCESS.2020.29887679072125Low Light Image Enhancement Network With Attention Mechanism and Retinex ModelWei Huang0Yifeng Zhu1https://orcid.org/0000-0002-2290-1411Rui Huang2School of Communication and Information Engineering, Shanghai University, Shanghai, ChinaSchool of Communication and Information Engineering, Shanghai University, Shanghai, ChinaSchool of Communication and Information Engineering, Shanghai University, Shanghai, ChinaDue to the uncertainty of the environment, the captured image may not only degrade but also have uneven brightness distribution. The quality of these images can not meet the input requirements of existing computer vision tasks, so they may lead to performance degradation in the completion of computer vision tasks. Past methods are often only applicable to low-light images with uniform brightness distribution, and the performance of these methods is not ideal for low-light images with uneven brightness distribution. In order to solve the problems caused by these low-light images, a new low light image enhancement model based on attention mechanism and Retinex model is proposed. The proposed method first estimates the illumination mask of the input image, which guides the network to predict the illumination distribution. Then we use a module with attention mechanism to predict the illumination map, and the initial enhanced image is estimated based on Retinex model. We modify the color distortion and suppress noise with convolution layers to obtain final enhanced results. In experiments, the performance of our methods is demonstrated by compared with the state-of-the-art existing methods. Our approach has more positive performance in some scenarios, especially uneven lighting.https://ieeexplore.ieee.org/document/9072125/Attention mechanismimage enhancementillumination mapRetinex model
spellingShingle Wei Huang
Yifeng Zhu
Rui Huang
Low Light Image Enhancement Network With Attention Mechanism and Retinex Model
IEEE Access
Attention mechanism
image enhancement
illumination map
Retinex model
title Low Light Image Enhancement Network With Attention Mechanism and Retinex Model
title_full Low Light Image Enhancement Network With Attention Mechanism and Retinex Model
title_fullStr Low Light Image Enhancement Network With Attention Mechanism and Retinex Model
title_full_unstemmed Low Light Image Enhancement Network With Attention Mechanism and Retinex Model
title_short Low Light Image Enhancement Network With Attention Mechanism and Retinex Model
title_sort low light image enhancement network with attention mechanism and retinex model
topic Attention mechanism
image enhancement
illumination map
Retinex model
url https://ieeexplore.ieee.org/document/9072125/
work_keys_str_mv AT weihuang lowlightimageenhancementnetworkwithattentionmechanismandretinexmodel
AT yifengzhu lowlightimageenhancementnetworkwithattentionmechanismandretinexmodel
AT ruihuang lowlightimageenhancementnetworkwithattentionmechanismandretinexmodel