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mmcv.video.flowwrite

mmcv.video.flowwrite(flow: numpy.ndarray, filename: str, quantize: bool = False, concat_axis: int = 0, *args, **kwargs)None[源代码]

Write optical flow to file.

If the flow is not quantized, it will be saved as a .flo file losslessly, otherwise a jpeg image which is lossy but of much smaller size. (dx and dy will be concatenated horizontally into a single image if quantize is True.)

参数
  • flow (ndarray) – (h, w, 2) array of optical flow.

  • filename (str) – Output filepath.

  • quantize (bool) – Whether to quantize the flow and save it to 2 jpeg images. If set to True, remaining args will be passed to quantize_flow().

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

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