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Add note on in-place nature of Normalize, closes #517 #520

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Merged
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May 27, 2018
Merged

Add note on in-place nature of Normalize, closes #517 #520

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3 changes: 3 additions & 0 deletions torchvision/transforms/functional.py
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Expand Up @@ -151,6 +151,9 @@ def to_pil_image(pic, mode=None):
def normalize(tensor, mean, std):
"""Normalize a tensor image with mean and standard deviation.

.. note::
This transform acts in-place, i.e., it mutates the input tensor.

See :class:`~torchvision.transforms.Normalize` for more details.

Args:
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3 changes: 3 additions & 0 deletions torchvision/transforms/transforms.py
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Expand Up @@ -123,6 +123,9 @@ class Normalize(object):
will normalize each channel of the input ``torch.*Tensor`` i.e.
``input[channel] = (input[channel] - mean[channel]) / std[channel]``

.. note::
This transform acts in-place, i.e., it mutates the input tensor.

Args:
mean (sequence): Sequence of means for each channel.
std (sequence): Sequence of standard deviations for each channel.
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