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[prototype] Minor change on adjust_saturation_image_tensor uint8 #6940

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merged 2 commits into from
Nov 10, 2022
Merged

[prototype] Minor change on adjust_saturation_image_tensor uint8 #6940

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07c1323
Minor perf on saturation uint8
datumbox Nov 10, 2022
7feee27
Merge branch 'main' into perf/saturation
datumbox Nov 10, 2022
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6 changes: 5 additions & 1 deletion torchvision/prototype/transforms/functional/_color.py
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Original file line number Diff line number Diff line change
Expand Up @@ -53,7 +53,11 @@ def adjust_saturation_image_tensor(image: torch.Tensor, saturation_factor: float
if c == 1: # Match PIL behaviour
return image

return _blend(image, _rgb_to_gray(image), saturation_factor)
grayscale_image = _rgb_to_gray(image, cast=False)
if not image.is_floating_point():
grayscale_image = grayscale_image.floor_()

return _blend(image, grayscale_image, saturation_factor)


adjust_saturation_image_pil = _FP.adjust_saturation
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