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pytorch-CycleGAN-and-pix2pix
The classic PyTorch implementation of CycleGAN and pix2pix for image-to-image translation
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Anleitung ansehen →contrastive-unpaired-translation ist ein Open-Source-Projekt aus der Kategorie Bild von taesungp (taesungp/contrastive-unpaired-translation auf GitHub). Es hat 2.556 Sterne auf GitHub und 452 Forks, wird unter der Lizenz NOASSERTION veröffentlicht und wurde zuletzt am 5. September 2023 auf GitHub aktualisiert.
CUT — contrastive unpaired image-to-image translation in PyTorch, faster and lighter than CycleGAN (ECCV 2020)
Gather two unpaired image collections (domains A and B) — e.g. horses and zebras — or download one of the provided datasets; decide CUT vs FastCUT vs single-image SinCUT.
Clone into a folder named CUT, as the README's getting-started shows.
pip install -r requirements.txt (or conda env create -f environment.yml); optionally start a visdom server to watch training.
Download a dataset with the provided script, train with train.py, then generate results with test.py — or skip training using the pretrained models and launcher scripts.
Patchwise contrastive learning ties corresponding patches of input and output together, replacing cycle consistency and its inverse network.
The authors report faster training and lower memory than CycleGAN, with stronger distribution matching in their experiments.
A lighter configuration (no identity loss, higher lambda_NCE) described as using half the GPU memory and training twice as fast as CycleGAN.
Each 'domain' can be just one image, using StyleGAN2-based components adopted in the repo.
Downloadable pretrained checkpoints (Cityscapes, Horse2Zebra, Cat2Dog) with launcher scripts and FID evaluation instructions.
Experiment launchers generate the long train/test command lines for the provided datasets.
Clone CUT into a directory named CUT, as the README shows.
git clone https://github.com/taesungp/contrastive-unpaired-translation.git
cd contrastive-unpaired-translationInstall PyTorch and the other requirements with pip (or use the conda environment file).
pip install -r requirements.txtDownload the example dataset, train CUT, then run the test script.
bash ./datasets/download_cut_dataset.sh grumpifycat
python train.py --dataroot ./datasets/grumpifycat --name grumpycat_CUT --CUT_mode CUT
python test.py --dataroot ./datasets/grumpifycat --name grumpycat_CUT --CUT_mode CUT --phase trainCUT exists because of the work it streamlines: the unpaired translation problem was defined by CycleGAN, in the classic PyTorch codebase that also carries pix2pix — still the implementation most translation projects are measured against.
The authors — Taesung Park, Alexei A. Efros, Richard Zhang and Jun-Yan Zhu (UC Berkeley / Adobe Research) — published it with their ECCV 2020 paper.
The code is public research code; GitHub lists its license as NOASSERTION, so read the repository's license file before reusing it commercially.
No — training and inference run locally in PyTorch on your own GPU.
CycleGAN enforces cycle consistency with a second generator. CUT uses a contrastive PatchNCE loss instead, which the authors show trains faster with less memory; FastCUT is the even lighter option.
Clone, pip install -r requirements.txt, download the grumpifycat dataset, and run the train.py command from the README.
The classic PyTorch implementation of CycleGAN and pix2pix for image-to-image translation
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