How to filter the abnormal face?

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The issue asks how to filter abnormal faces but only provides an example image without any code, error, or specific criteria. Start by examining the library's face detection and alignment outputs, possibly in the test or example scripts. Determine what 'abnormal' means in this context—is it about detection confidence, landmark positions, or image quality? Look at the model's output format and see if there are existing filters or thresholds that can be applied.

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