mmcv.video.flowread

mmcv.video.flowread(flow_or_path: ndarray | str, quantize: bool = False, concat_axis: int = 0, *args, **kwargs) → ndarray

Read an optical flow map.

Parameters:

• flow_or_path (ndarray or str) – A flow map or filepath.

• quantize (bool) – whether to read quantized pair, if set to True, remaining args will be passed to dequantize_flow().

• concat_axis (int) – The axis that dx and dy are concatenated, can be either 0 or 1. Ignored if quantize is False.

Returns:

Optical flow represented as a (h, w, 2) numpy array

Return type:

ndarray