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|a 10.1109/TIP.2022.3140610
|2 doi
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|a eng
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|a Huang, Haofeng
|e verfasserin
|4 aut
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|a Towards Low Light Enhancement With RAW Images
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|c 2022
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 26.01.2022
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a In this paper, we make the first benchmark effort to elaborate on the superiority of using RAW images in the low light enhancement and develop a novel alternative route to utilize RAW images in a more flexible and practical way. Inspired by a full consideration on the typical image processing pipeline, we are inspired to develop a new evaluation framework, Factorized Enhancement Model (FEM), which decomposes the properties of RAW images into measurable factors and provides a tool for exploring how properties of RAW images affect the enhancement performance empirically. The empirical benchmark results show that the Linearity of data and Exposure Time recorded in meta-data play the most critical role, which brings distinct performance gains in various measures over the approaches taking the sRGB images as input. With the insights obtained from the benchmark results in mind, a RAW-guiding Exposure Enhancement Network (REENet) is developed, which makes trade-offs between the advantages and inaccessibility of RAW images in real applications in a way of using RAW images only in the training phase. REENet projects sRGB images into linear RAW domains to apply constraints with corresponding RAW images to reduce the difficulty of modeling training. After that, in the testing phase, our REENet does not rely on RAW images. Experimental results demonstrate not only the superiority of REENet to state-of-the-art sRGB-based methods and but also the effectiveness of the RAW guidance and all components
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|a Journal Article
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1 |
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|a Yang, Wenhan
|e verfasserin
|4 aut
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| 700 |
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|a Hu, Yueyu
|e verfasserin
|4 aut
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| 700 |
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|a Liu, Jiaying
|e verfasserin
|4 aut
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| 700 |
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|a Duan, Ling-Yu
|e verfasserin
|4 aut
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|i Enthalten in
|t IEEE transactions on image processing : a publication of the IEEE Signal Processing Society
|d 1992
|g 31(2022) vom: 01., Seite 1391-1405
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|x 1941-0042
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|g volume:31
|g year:2022
|g day:01
|g pages:1391-1405
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|u http://dx.doi.org/10.1109/TIP.2022.3140610
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