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fix save_image when height or width == 1 #1059

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merged 2 commits into from
Jun 26, 2019
Merged

fix save_image when height or width == 1 #1059

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d9c2344
fix save_image when height or width == 1
trougnouf Jun 26, 2019
97b946a
test_save_image_single_pixel
trougnouf Jun 26, 2019
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6 changes: 6 additions & 0 deletions test/test_utils.py
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Original file line number Diff line number Diff line change
Expand Up @@ -43,6 +43,12 @@ def test_save_image(self):
utils.save_image(t, f.name)
assert os.path.exists(f.name), 'The image is not present after save'

def test_save_image_single_pixel(self):
with tempfile.NamedTemporaryFile(suffix='.png') as f:
t = torch.rand(1, 3, 1, 1)
utils.save_image(t, f.name)
assert os.path.exists(f.name), 'The pixel image is not present after save'


if __name__ == '__main__':
unittest.main()
2 changes: 1 addition & 1 deletion torchvision/utils.py
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Expand Up @@ -67,7 +67,7 @@ def norm_range(t, range):
norm_range(tensor, range)

if tensor.size(0) == 1:
return tensor.squeeze()
return tensor.squeeze(0)

# make the mini-batch of images into a grid
nmaps = tensor.size(0)
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