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This is an almost exact replica in PyTorch of the Tensorflow version of Self-Attention GAN released by Google Brain in August 2018.

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self-attention-GAN-pytorch

This is an almost exact replica in PyTorch of the Tensorflow version of SAGAN released by Google Brain [repo] in August 2018.

Code structure is inspired from this repo, but follows the details of Google Brain's repo.

Prerequisites

Check requirements.txt.

Training

1. Check parameters.py for all arguments and their default values

2. Train on custom images in folder a/b/c:

$ python train.py --data_path 'a/b/c' --save_path 'o/p/q' --batch_size 64 --name sagan

(Warning: Works only on 128x128 images, input images are resized to that. Tweak the Generator & Discriminator first if you would like to use some other image size. And then use the imsize option:

$ python train.py --data_path 'a/b/c' --save_path 'o/p/q' --batch_size 64 --imsize 32 --name sagan

)

Model training will be recorded in a new folder inside --save_path with the name <timestamp>_<name>_<basename of data_path>.

By default, model weights are saved in a subfolder called weights, and train & validation samples during training in a subfolder called samples (can be changed in parameters.py).

Testing/Evaluating

Check test.py.

Self-Attention GAN

Han Zhang, Ian Goodfellow, Dimitris Metaxas and Augustus Odena, "Self-Attention Generative Adversarial Networks." arXiv preprint arXiv:1805.08318 (2018).

@article{Zhang2018SelfAttentionGA,
    title={Self-Attention Generative Adversarial Networks},
    author={Han Zhang and Ian J. Goodfellow and Dimitris N. Metaxas and Augustus Odena},
    journal={CoRR},
    year={2018},
    volume={abs/1805.08318}
}

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This is an almost exact replica in PyTorch of the Tensorflow version of Self-Attention GAN released by Google Brain in August 2018.

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