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BigGAN-PyTorch

Pytorch implementation of LARGE SCALE GAN TRAINING FOR HIGH FIDELITY NATURAL IMAGE SYNTHESIS (BigGAN)

train imagenet

for 128*128*3 resolution

python main.py --batch_size 64  --dataset imagenet --adv_loss hinge --version biggan_imagenet --image_path /data/datasets

python main.py --batch_size 64  --dataset lsun --adv_loss hinge --version biggan_lsun --image_path /data1/datasets/lsun/lsun

python main.py --batch_size 64  --dataset lsun --adv_loss hinge --version biggan_lsun --parallel True --gpus 0,1,2,3 --use_tensorboard True

Different

• not use cross-replica BatchNorm (Ioffe & Szegedy, 2015) in G

Compatability

• CPU
• GPU

Pretrained Models

LSUN Pretrained model Download

Some methods in the paper to avoid model collapse, please see the paper and retrain your model.

Performance

• Infact, as mentioned in the paper, the model will collapse
• I use LSUN datasets to train this model maybe cause bad performance due to the class of classroom is more complex than ImageNet

Results

LSUN DATASETS(two classes): classroom and church_outdoor

• iter 82200 (128x128) batch_size 64
• iter 128200
• iter 365000
• iter 800000
• iter 900000