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ShenZheng2000 authored Oct 5, 2021
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# Semantic-Guided-Low-Light-Image-Enhancement
This is the official Pytorch implementation for our paper "**Semantic-Guided Zero-Shot Learning for Low-Light Image/Video Enhancement.**"

A sample low-light video and its enhanced result is available at: [[Low-Light](https://www.youtube.com/watch?v=4Avy_xsczdU)] [[Enhanced](https://www.youtube.com/watch?v=rN6Tf1E-kE8)]
# Updates
- 2021.10.5: A sample low-light video and its enhanced result is available at: [[Low-Light](https://www.youtube.com/watch?v=4Avy_xsczdU)] [[Enhanced](https://www.youtube.com/watch?v=rN6Tf1E-kE8)]
- 2021.10.5: My new [repository](https://github.com/ShenZheng2000/Awesome-Low-Light-Enhancement-with-Deep-Learning) contains a collection of low-light enhancement methods. Hope you will find it helpful.
- 2021.10.4: The arxiv link is available at http://arxiv.org/abs/2110.00970

The arxiv link is available at http://arxiv.org/abs/2110.00970

# Abstract
Low-light images challenge both human perceptions and computer vision algorithms. It is crucial to make algorithms robust to enlighten low-light images for computational photography and computer vision applications such as real-time detection and segmentation tasks. This paper proposes a semantic-guided zero-shot low-light enhancement network which is trained in the absence of paired images, unpaired datasets, and segmentation annotation. Firstly, we design an efficient **enhancement factor extraction** network using depthwise separable convolution. Secondly, we propose a **recurrent image enhancement** network for progressively enhancing the low-light image. Finally, we introduce an **unsupervised semantic segmentation** network for preserving the semantic information. Extensive experiments on various benchmark datasets and a low-light video demonstrate that our model outperforms the previous state-of-the-art qualitatively and quantitatively. We further discuss the benefits of the proposed method for low-light detection and segmentation.
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