Simplified CycleGAN Implementation in PyTorch

Code Available on GitHub – https://github.com/cy-xu/simple_CycleGAN

Great thanks to Jun-Yan Zhu et al. for their contribution of the CycleGAN paper. The code is adapted from the authors’ implementation but simplified into just a few files. Original project and paper –

CycleGAN: Project | Paper | Torch

Prerequisites

Linux or macOS
Python 3
CPU or NVIDIA GPU + CUDA CuDNN

Getting Started

Installation

Install PyTorch 0.4+ (1.0 tested) with GPU support.
Clone this repo:

    git clone https://github.com/cy-xu/simple_CycleGAN
    cd simple_CycleGAN

The command pip install -r requirements.txt will install all required dependencies.

CycleGAN train/test

Download a CycleGAN dataset from the authors (e.g. horse2zebra):

    bash ./util/download_cyclegan_dataset.sh horse2zebra

Train a model (different from original implementation):

    python simple_cygan.py train

Change training options in simple_cygan.py, all options will be saved to a txt file
A new directory by name of opt.name will be created inside the checkpoints directory
Inside checkpoints\project_name\ you will find
- checkpoints for training processing results
- models for saved models
- test_results for running python simple_cygan.py test on testing dataset
Test the model:

    python simple_cygan.py test

Use your own Dataset

Follow the naming pattern of trainA, trainB, testA, and place them in datasets\your_dataset\. You can also change directories inside simple_cygan.py.

Citation

If you use this code for your research, please cite Jun-Yan et al’s papers.

@inproceedings{CycleGAN2017,
  title={Unpaired Image-to-Image Translation using Cycle-Consistent Adversarial Networkss},
  author={Zhu, Jun-Yan and Park, Taesung and Isola, Phillip and Efros, Alexei A},
  booktitle={Computer Vision (ICCV), 2017 IEEE International Conference on},
  year={2017}
}


@inproceedings{isola2017image,
  title={Image-to-Image Translation with Conditional Adversarial Networks},
  author={Isola, Phillip and Zhu, Jun-Yan and Zhou, Tinghui and Efros, Alexei A},
  booktitle={Computer Vision and Pattern Recognition (CVPR), 2017 IEEE Conference on},
  year={2017}
}

Related Projects

Vision, Motion, Code