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Update datasets.py #3531

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Jun 8, 2021
Merged

Update datasets.py #3531

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11 changes: 6 additions & 5 deletions utils/datasets.py
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Original file line number Diff line number Diff line change
Expand Up @@ -462,19 +462,20 @@ def cache_labels(self, path=Path('./labels.cache'), prefix=''):
nm, nf, ne, nc = 0, 0, 0, 0 # number missing, found, empty, corrupt
desc = f"{prefix}Scanning '{path.parent / path.stem}' images and labels..."
with Pool(num_threads) as pool:
pbar = tqdm(pool.imap_unordered(verify_image_label,
zip(self.img_files, self.label_files, repeat(prefix))),
pbar = tqdm(pool.imap_unordered(verify_image_label, zip(self.img_files, self.label_files, repeat(prefix))),
desc=desc, total=len(self.img_files))
for im_file, l, shape, segments, nm_f, nf_f, ne_f, nc_f in pbar:
nm += nm_f
nf += nf_f
ne += ne_f
nc += nc_f
if im_file:
x[im_file] = [l, shape, segments]
nm, nf, ne, nc = nm + nm_f, nf + nf_f, ne + ne_f, nc + nc_f
pbar.desc = f"{desc}{nf} found, {nm} missing, {ne} empty, {nc} corrupted"
pbar.close()

pbar.close()
if nf == 0:
logging.info(f'{prefix}WARNING: No labels found in {path}. See {help_url}')

x['hash'] = get_hash(self.label_files + self.img_files)
x['results'] = nf, nm, ne, nc, len(self.img_files)
x['version'] = 0.2 # cache version
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