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Assert non-premature end of JPEG images (#3638) 

* premature end of JPEG images

* PEP8 reformat

Co-authored-by: Glenn Jocher <glenn.jocher@ultralytics.com>
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xiaowk5516 2021-06-16 19:31:26 +08:00 committed by GitHub
parent bb79e13d52
commit d808855f77
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4
utils/datasets.py
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@ -1057,6 +1057,10 @@ def verify_image_label(args):
shape = exif_size(im) # image size shape = exif_size(im) # image size
assert (shape[0] > 9) & (shape[1] > 9), f'image size {shape} <10 pixels' assert (shape[0] > 9) & (shape[1] > 9), f'image size {shape} <10 pixels'
assert im.format.lower() in img_formats, f'invalid image format {im.format}' assert im.format.lower() in img_formats, f'invalid image format {im.format}'
if im.format.lower() in ('jpg', 'jpeg'):
with open(im_file, 'rb') as f:
f.seek(-2, 2)
assert f.read() == b'\xff\xd9', 'corrupted JPEG'
# verify labels # verify labels
segments = [] # instance segments segments = [] # instance segments