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Fixed the ordering of the filenames #1

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Fixed the ordering of the filenames #1

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15 changes: 11 additions & 4 deletions __init__.py
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Original file line number Diff line number Diff line change
Expand Up @@ -26,17 +26,24 @@ def image_names(cityscapes_root, subset, citynames=False):
- `subset` the subset to be loaded can be one of `train`, `test`, `val`, `train_extra`.
'''
image_folder = os.path.join(cityscapes_root, 'leftImg8bit', subset)
cnames = []
inames = []

# This is a list of tuples of the form (filename, cityname)
image_names = []

#Get all the images in the subfolders
for city in os.listdir(image_folder):
city_folder = os.path.join(image_folder, city)

for fname in os.listdir(city_folder):
if fname.endswith('.png'):
inames.append(os.path.join(city_folder, fname))
cnames.append(city)
image_names.append((os.path.join(city_folder, fname), city))

# Make sure that the ordering of the filenames is invariant under the possible
# directory traversals. This is important if we want to generate the demo video.
image_names = sorted(image_names, key=lambda x: x[0])

# Restore the original return format
inames, cnames = map(list, zip(*image_names))

return (inames, cnames) if citynames else inames

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