mmcv.image.imcrop

mmcv.image.imcrop(img: ndarray, bboxes: ndarray, scale: float = 1.0, pad_fill: float | list | None = None) → ndarray | List[ndarray]

Crop image patches.

3 steps: scale the bboxes -> clip bboxes -> crop and pad.

Parameters:

• img (ndarray) – Image to be cropped.

• bboxes (ndarray) – Shape (k, 4) or (4, ), location of cropped bboxes.

• scale (float, optional) – Scale ratio of bboxes, the default value 1.0 means no scaling.

• pad_fill (Number | list[Number]) – Value to be filled for padding. Default: None, which means no padding.

Returns:

The cropped image patches.

Return type:

list[ndarray] | ndarray