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Multihuntr/pytorch_tensor_to_image.py

Created September 2, 2019 03:35
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One liner to save a GPU pytorch tensor to disk as an image using PIL
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pytorch_tensor_to_image.py
from PIL import Image
# Assumes tensor is shaped [c, h, w]
Image.fromarray(tensor.detach().cpu().numpy().transpose([1, 2, 0])).save('test.png')
# Assumes tensor is shaped [n, c, h, w]
Image.fromarray(tensor[0].detach().cpu().numpy().transpose([1, 2, 0])).save('test.png')
# Yeah, pretty simple, but annoying to remember...
# You can use these from within the python debugger, by the way
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