If there are no detections in an image, the input frame is returned. My understanding is that this is an unwanted behaviour if the parameters 'export_mask' or 'export_colored_mask' are set. In this case the return of a mask (in this case empty --> black image) is expected.
If there are no detections in an image, the input frame is returned. My understanding is that this is an unwanted behaviour if the parameters 'export_mask' or 'export_colored_mask' are set. In this case the return of a mask (in this case empty --> black image) is expected.