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# Copyright (c) OpenMMLab. All rights reserved.
import argparse
import os
import os.path as osp
import shutil
import tempfile
import zipfile
from mmengine.utils import mkdir_or_exist
def parse_args():
parser = argparse.ArgumentParser(
description='Convert LoveDA dataset to mmsegmentation format')
parser.add_argument('dataset_path', help='LoveDA folder path')
parser.add_argument('--tmp_dir', help='path of the temporary directory')
parser.add_argument('-o', '--out_dir', help='output path')
args = parser.parse_args()
return args
def main():
args = parse_args()
dataset_path = args.dataset_path
if args.out_dir is None:
out_dir = osp.join('data', 'loveDA')
else:
out_dir = args.out_dir
print('Making directories...')
mkdir_or_exist(out_dir)
mkdir_or_exist(osp.join(out_dir, 'img_dir'))
mkdir_or_exist(osp.join(out_dir, 'img_dir', 'train'))
mkdir_or_exist(osp.join(out_dir, 'img_dir', 'val'))
mkdir_or_exist(osp.join(out_dir, 'img_dir', 'test'))
mkdir_or_exist(osp.join(out_dir, 'ann_dir'))
mkdir_or_exist(osp.join(out_dir, 'ann_dir', 'train'))
mkdir_or_exist(osp.join(out_dir, 'ann_dir', 'val'))
assert 'Train.zip' in os.listdir(dataset_path), \
f'Train.zip is not in {dataset_path}'
assert 'Val.zip' in os.listdir(dataset_path), \
f'Val.zip is not in {dataset_path}'
assert 'Test.zip' in os.listdir(dataset_path), \
f'Test.zip is not in {dataset_path}'
with tempfile.TemporaryDirectory(dir=args.tmp_dir) as tmp_dir:
for dataset in ['Train', 'Val', 'Test']:
zip_file = zipfile.ZipFile(
os.path.join(dataset_path, dataset + '.zip'))
zip_file.extractall(tmp_dir)
data_type = dataset.lower()
for location in ['Rural', 'Urban']:
for image_type in ['images_png', 'masks_png']:
if image_type == 'images_png':
dst = osp.join(out_dir, 'img_dir', data_type)
else:
dst = osp.join(out_dir, 'ann_dir', data_type)
if dataset == 'Test' and image_type == 'masks_png':
continue
else:
src_dir = osp.join(tmp_dir, dataset, location,
image_type)
src_lst = os.listdir(src_dir)
for file in src_lst:
shutil.move(osp.join(src_dir, file), dst)
print('Removing the temporary files...')
print('Done!')
if __name__ == '__main__':
main()
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