About super_res_sample

[zxt-triumph]

What is the base_samples?

[Jooyoung Choi]

It is directory to the low-resolution input images.

[zxt-triumph]

When I specify the directory, I get the following error:

• python scripts/super_res_sample.py --attention_resolutions 16 --class_cond False --diffusion_steps 1000 --dropout 0.0 --large_size 256 --small_size 64 --learn_sigma False --noise_schedule linear --num_channels 128 --num_head_channels 4 --num_res_blocks 2 --resblock_updown False --use_fp16 False --use_scale_shift_norm False --timestep_respacing 100 --model_path ./logs/res_256/ema_0.9999_002000.pt --base_samples ./datasets/test/
  Logging to ./logs/res_256/
  creating model...
  loading data...
  creating samples...
  Traceback (most recent call last):
  File "/home/ztf/project/zxt/Code/Diffusion Models/Noise2Noise/scripts/super_res_sample.py", line 119, in
  main()
  File "/home/ztf/project/zxt/Code/Diffusion Models/Noise2Noise/scripts/super_res_sample.py", line 47, in main
  model_kwargs = next(data)
  File "/home/ztf/project/zxt/Code/Diffusion Models/Noise2Noise/scripts/super_res_sample.py", line 78, in load_data_for_worker
  with bf.BlobFile(base_samples, "rb") as f:
  File "/home/ztf/anaconda3/envs/vgan/lib/python3.9/site-packages/blobfile/_ops.py", line 356, in BlobFile
  return default_context.BlobFile(
  File "/home/ztf/anaconda3/envs/vgan/lib/python3.9/site-packages/blobfile/_context.py", line 859, in BlobFile
  raise IsADirectoryError(f"Is a directory: '{path}'")
  IsADirectoryError: Is a directory: './datasets/test/'

[Jooyoung Choi]

Oh, in this script, base_sample is .npz file of low-resolution images.
You can modify the script by using data loader from super_res_train.py.
For example,