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- # Copyright (c) OpenMMLab. All rights reserved.
- import argparse
- import os
- import os.path as osp
- import tempfile
- import zipfile
- import mmcv
- from mmengine.utils import mkdir_or_exist
- HRF_LEN = 15
- TRAINING_LEN = 5
- def parse_args():
- parser = argparse.ArgumentParser(
- description='Convert HRF dataset to mmsegmentation format')
- parser.add_argument('healthy_path', help='the path of healthy.zip')
- parser.add_argument(
- 'healthy_manualsegm_path', help='the path of healthy_manualsegm.zip')
- parser.add_argument('glaucoma_path', help='the path of glaucoma.zip')
- parser.add_argument(
- 'glaucoma_manualsegm_path', help='the path of glaucoma_manualsegm.zip')
- parser.add_argument(
- 'diabetic_retinopathy_path',
- help='the path of diabetic_retinopathy.zip')
- parser.add_argument(
- 'diabetic_retinopathy_manualsegm_path',
- help='the path of diabetic_retinopathy_manualsegm.zip')
- 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()
- images_path = [
- args.healthy_path, args.glaucoma_path, args.diabetic_retinopathy_path
- ]
- annotations_path = [
- args.healthy_manualsegm_path, args.glaucoma_manualsegm_path,
- args.diabetic_retinopathy_manualsegm_path
- ]
- if args.out_dir is None:
- out_dir = osp.join('data', 'HRF')
- else:
- out_dir = args.out_dir
- print('Making directories...')
- mkdir_or_exist(out_dir)
- mkdir_or_exist(osp.join(out_dir, 'images'))
- mkdir_or_exist(osp.join(out_dir, 'images', 'training'))
- mkdir_or_exist(osp.join(out_dir, 'images', 'validation'))
- mkdir_or_exist(osp.join(out_dir, 'annotations'))
- mkdir_or_exist(osp.join(out_dir, 'annotations', 'training'))
- mkdir_or_exist(osp.join(out_dir, 'annotations', 'validation'))
- print('Generating images...')
- for now_path in images_path:
- with tempfile.TemporaryDirectory(dir=args.tmp_dir) as tmp_dir:
- zip_file = zipfile.ZipFile(now_path)
- zip_file.extractall(tmp_dir)
- assert len(os.listdir(tmp_dir)) == HRF_LEN, \
- f'len(os.listdir(tmp_dir)) != {HRF_LEN}'
- for filename in sorted(os.listdir(tmp_dir))[:TRAINING_LEN]:
- img = mmcv.imread(osp.join(tmp_dir, filename))
- mmcv.imwrite(
- img,
- osp.join(out_dir, 'images', 'training',
- osp.splitext(filename)[0] + '.png'))
- for filename in sorted(os.listdir(tmp_dir))[TRAINING_LEN:]:
- img = mmcv.imread(osp.join(tmp_dir, filename))
- mmcv.imwrite(
- img,
- osp.join(out_dir, 'images', 'validation',
- osp.splitext(filename)[0] + '.png'))
- print('Generating annotations...')
- for now_path in annotations_path:
- with tempfile.TemporaryDirectory(dir=args.tmp_dir) as tmp_dir:
- zip_file = zipfile.ZipFile(now_path)
- zip_file.extractall(tmp_dir)
- assert len(os.listdir(tmp_dir)) == HRF_LEN, \
- f'len(os.listdir(tmp_dir)) != {HRF_LEN}'
- for filename in sorted(os.listdir(tmp_dir))[:TRAINING_LEN]:
- img = mmcv.imread(osp.join(tmp_dir, filename))
- # The annotation img should be divided by 128, because some of
- # the annotation imgs are not standard. We should set a
- # threshold to convert the nonstandard annotation imgs. The
- # value divided by 128 is equivalent to '1 if value >= 128
- # else 0'
- mmcv.imwrite(
- img[:, :, 0] // 128,
- osp.join(out_dir, 'annotations', 'training',
- osp.splitext(filename)[0] + '.png'))
- for filename in sorted(os.listdir(tmp_dir))[TRAINING_LEN:]:
- img = mmcv.imread(osp.join(tmp_dir, filename))
- mmcv.imwrite(
- img[:, :, 0] // 128,
- osp.join(out_dir, 'annotations', 'validation',
- osp.splitext(filename)[0] + '.png'))
- print('Done!')
- if __name__ == '__main__':
- main()
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