I notice that the Totensor  Converts a PIL.Image or numpy.ndarray (H x W x C) in the range
[0, 255] to a torch.FloatTensor of shape (C x H x W) in the range [0.0, 1.0].
but My array has been float and not in the [0,255]. for example, I have implemented rgb2lab and the results are  float and not in the [0,255]. so how to carry out the Totensor or Normalize method?