Different AU values when passing to detector.detect_image a single image or a batch of images

Hi there,

I am trying to extract AU values ​​from some images. Calling the function "detector.detect_image" on each image individually, I obtain some values ​​in the AU columns different from those I obtain by passing to the function a list containing all the images (the same used in the single image case).

The values ​​on the other columns are the same (same detection coordinates and same emotion values), only the values ​​for the AU columns are different.

Is this behavior expected?

Start at the detector.detect_image entry point and reproduce the comparison between processing each image separately and processing the same images as a batch. Check why only the AU values differ while detection coordinates and emotion values remain equal. Done means establishing whether the outputs should match and fixing or documenting the observed behavior accordingly.

Written by the indexing model from the issue text.