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Zero-Reference Deep Curve Estimation for Low-Light Image Enhancement

You can find more details here: https://li-chongyi.github.io/Proj_Zero-DCE.html. Have fun!

The implementation of Zero-DCE is for non-commercial use only.

We also provide a MindSpore version of our code: https://pan.baidu.com/s/1uyLBEBdbb1X4QVe2waog_g (passwords: of5l).

Pytorch

Pytorch implementation of Zero-DCE

Requirements

  1. Python 3.7
  2. Pytorch 1.0.0
  3. opencv
  4. torchvision 0.2.1
  5. cuda 10.0

Zero-DCE does not need special configurations. Just basic environment.

Or you can create a conda environment to run our code like this: conda create --name zerodce_env opencv pytorch==1.0.0 torchvision==0.2.1 cuda100 python=3.7 -c pytorch

Folder structure

Download the Zero-DCE_code first. The following shows the basic folder structure.


├── data
│   ├── test_data # testing data. You can make a new folder for your testing data, like LIME, MEF, and NPE.
│   │   ├── LIME 
│   │   └── MEF
│   │   └── NPE
│   └── train_data 
├── lowlight_test.py # testing code
├── lowlight_train.py # training code
├── model.py # Zero-DEC network
├── dataloader.py
├── snapshots
│   ├── Epoch99.pth #  A pre-trained snapshot (Epoch99.pth)

Test:

cd Zero-DCE_code

python lowlight_test.py

The script will process the images in the sub-folders of "test_data" folder and make a new folder "result" in the "data". You can find the enhanced images in the "result" folder.

Train:

  1. cd Zero-DCE_code

  2. download the training data <a href="https://drive.google.com/file/d/1GAB3uGsmAyLgtDBDONbil08vVu5wJcG3/view?usp=sharing">google drive</a> or <a href="https://pan.baidu.com/s/11-u_FZkJ8OgbqcG6763XyA">baidu cloud [password: 1234]</a>

  3. unzip and put the downloaded "train_data" folder to "data" folder

python lowlight_train.py

License

The code is made available for academic research purpose only. Under Attribution-NonCommercial 4.0 International License.

Bibtex

@inproceedings{Zero-DCE,
 author = {Guo, Chunle Guo and Li, Chongyi and Guo, Jichang and Loy, Chen Change and Hou, Junhui and Kwong, Sam and Cong, Runmin},
 title = {Zero-reference deep curve estimation for low-light image enhancement},
 booktitle = {Proceedings of the IEEE conference on computer vision and pattern recognition (CVPR)},
 pages    = {1780-1789},
 month = {June},
 year = {2020}
}

(Full paper: http://openaccess.thecvf.com/content_CVPR_2020/papers/Guo_Zero-Reference_Deep_Curve_Estimation_for_Low-Light_Image_Enhancement_CVPR_2020_paper.pdf)

Contact

If you have any questions, please contact Chongyi Li at lichongyi25@gmail.com or Chunle Guo at guochunle@tju.edu.cn.

TensorFlow Version

Thanks tuvovan (vovantu.hust@gmail.com) who re-produces our code by TF. The results of TF version look similar with our Pytorch version. But I do not have enough time to check the details. https://github.com/tuvovan/Zero_DCE_TF