is it possible to fine tune?

[juanluisrosaramos]

Is it possible to fine tune your e4e_ffhq_encode.pt model and change it to another different domain? I have a dataset of babies with a stylegan2 trained. Can I resume a train from your provided weights?
i can start a training from scratch but if I add the option to resume from checkpoint it returns the error

Loading decoder weights from pretrained!
Traceback (most recent call last):
File "scripts/train.py", line 87, in
main()
File "scripts/train.py", line 27, in main
coach = Coach(opts, previous_train_ckpt)
File "./training/coach.py", line 38, in init
self.net = pSp(self.opts).to(self.device)
File "./models/psp.py", line 28, in init
self.load_weights()
File "./models/psp.py", line 53, in load_weights
ckpt = torch.load(self.opts.stylegan_weights)
File "/usr/local/lib/python3.7/dist-packages/torch/serialization.py", line 594, in load
with _open_file_like(f, 'rb') as opened_file:
File "/usr/local/lib/python3.7/dist-packages/torch/serialization.py", line 230, in _open_file_like
return _open_file(name_or_buffer, mode)
File "/usr/local/lib/python3.7/dist-packages/torch/serialization.py", line 211, in init
super(_open_file, self).init(open(name, mode))
FileNotFoundError: [Errno 2] No such file or directory: ''

My training config is

python scripts/train.py
--dataset_type babies_encode
--exp_dir new/experiment2/directory
--start_from_latent_avg
--use_w_pool
--w_discriminator_lambda 0.1
--progressive_start 20000
--id_lambda 0.1
--val_interval 10000
--max_steps 200000
--stylegan_size 512
--stylegan_weights ../stylegan2-ada-pytorch_2/network-snapshot-000320.pt
--workers 8
--batch_size 8
--test_batch_size 2
--test_workers 2
--save_interval 2000
--resume_training_from_ckpt pretrained_models/e4e_ffhq_encode.pt

[LLLPS666]

hello, have you solved this promble?
I can ues it to fine tune. But the model would be worse after training.
My training config is

python scripts/train.py
--dataset_type my_data_encode
--exp_dir my_model/mye4e
--use_w_pool
--w_discriminator_lambda 0.1
--progressive_start 20000
--id_lambda 0.5
--val_interval 10000
--max_steps 200
--stylegan_size 512
--stylegan_weights pretrained_models/stylegan2-ffhq-config-f.pt
--workers 8
--batch_size 16
--test_batch_size 4
--test_workers 4
--checkpoint_path pretrained_models/e4e_ffhq_encode.pt

[omertov]

Hi @juanluisrosaramos,
Sorry for the long response time,

In case it is still relevant, it seems like the file_path you provide for the stylegan_weights leads to a non-existing file, perhaps providing the absolute path to the weights file would help.
Also, just making sure that the StyleGAN checkpoint is compatible with rosinality's stylegan2-pytorch implementation, and not the nvidia's pytorch implementation. Last, I believe that the resume_training_from_ckpt would not yield the desired effect (there is no training information stored in the checkpoints I provided if thats what stored in pretrained_models/e4e_ffhq_encode.pt), you could use the --checkpoint_path flag to initialize the encoder from the pretrained weights.

As for @LLLPS666 's question - Is the error caused by the wrong stylegan_size specified? (512 instead of 1024)?

Best,
Omer