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# autocontrast

torchvision.transforms.functional.autocontrast(img: Tensor) → Tensor

  Maximize contrast of an image by remapping its pixels per channel so that the lowest becomes black and the lightest becomes white.

  Parameters:

    img (PIL Image or Tensor) – Image on which autocontrast is applied. If img is torch Tensor, it is expected to be in […, 1 or 3, H, W] format, where … means it can have an arbitrary number of leading dimensions. If img is PIL Image, it is expected to be in mode “L” or “RGB”.

  Returns:

    An image that was autocontrasted.

  Return type:

    PIL Image or Tensor

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