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Faster pre-processing for gray image input #9009

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Merged
merged 3 commits into from
Aug 18, 2022
Merged

Faster pre-processing for gray image input #9009

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c1cfab4
faster 1 channel to 3 channels image conversion
cher-liang Aug 18, 2022
ea72f80
[pre-commit.ci] auto fixes from pre-commit.com hooks
pre-commit-ci[bot] Aug 18, 2022
1f3bb42
Merge branch 'master' into master
glenn-jocher Aug 18, 2022
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2 changes: 1 addition & 1 deletion models/common.py
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Expand Up @@ -615,7 +615,7 @@ def forward(self, imgs, size=640, augment=False, profile=False):
files.append(Path(f).with_suffix('.jpg').name)
if im.shape[0] < 5: # image in CHW
im = im.transpose((1, 2, 0)) # reverse dataloader .transpose(2, 0, 1)
im = im[..., :3] if im.ndim == 3 else np.tile(im[..., None], 3) # enforce 3ch input
im = im[..., :3] if im.ndim == 3 else cv2.cvtColor(im, cv2.COLOR_GRAY2BGR) # enforce 3ch input
s = im.shape[:2] # HWC
shape0.append(s) # image shape
g = (size / max(s)) # gain
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