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CopyPaste bugfix - result['img'] not in src image dtype #11713

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CopyPaste bugfix - result['img'] not in src image dtype #11713

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3 changes: 3 additions & 0 deletions mmdet/datasets/transforms/transforms.py
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Original file line number Diff line number Diff line change
Expand Up @@ -3132,6 +3132,9 @@ def _copy_paste(self, dst_results: dict, src_results: dict) -> dict:

# update masks and generate bboxes from updated masks
composed_mask = np.where(np.any(src_masks.masks, axis=0), 1, 0)
# Min and max values are inside the uint8 range, so cast it
# accordingly to the source image type
composed_mask = composed_mask.astype(src_img.dtype)
updated_dst_masks = self._get_updated_masks(dst_masks, composed_mask)
updated_dst_bboxes = updated_dst_masks.get_bboxes(type(dst_bboxes))
assert len(updated_dst_bboxes) == len(updated_dst_masks)
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