Training a model with only normal data, gettting "RuntimeError: Found 0 abnormal images"

[toon-vc]

Describe the bug

When training a model with only normal images, getting "RuntimeError: Found 0 abnormal images "

The problem can be fixed by removing the abnormal dir in make_dataset in the folder module:
dirs = {"normal": normal_dir}
instead of
dirs = {"normal": normal_dir, "abnormal": abnormal_dir}

If I do this, training finishes successfully and I get a good model.

Should the abnormal_dir be made Optional, and the abnormal_dir left out of dirs when it is not specified? Or can this be due to issues in config/setup?

To Reproduce

Train a PatchCore model without any abnormal images.

Expected behavior

A successful training run.

Hardware and Software Configuration

• OS: Ubuntu
• anomalib: 0.3.7

[samet-akcay]

Duplicate of #277.

@toon-vc, this is something we are currently working on. It will be available here once we merge this feature branch to main.