❓How to extract anomaly score of patchcore?

[couragelfyang]

What is the motivation for this task?

1. I'd like to extract the anomaly score of patchcore. Is there any API?

Describe the solution you'd like

I'm looking for a function outputting the anomaly score

Additional context

No response

[blaz-r]

Hi, Patchcore model returns a dict with anomaly map and the score:
https://github.com/openvinotoolkit/anomalib/blob/4459c2b9e90321ccdd8a7820f15b8e367e884a9e/src/anomalib/models/image/patchcore/torch_model.py#L105-L108
pred_score contains the anomaly score.

[samet-akcay]

here how it is done

  threshold:
    class_path: anomalib.metrics.ManualThreshold
    init_args:
      default_value: 0.5

[blaz-r]

What if we want pixel_threshold different from image threshold?

[cory619-seungwon]

@blaz-r @samet-akcay
Thank you all for the reply. What's range of manual_image & manual_pixel? Dose it depend on dataset?

[blaz-r]

It does depend on the dataset, you can try printing the adaptive threshold (which automatically determines the best threshold based on f1), or saving all the scores to get the idea of range.

[cory619-seungwon]

@blaz-r Thank you. Let me try to select optimal parameters.