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- #!/usr/bin/env python
- import random
- import os.path as osp
- from functools import reduce, partial
- from common import (get_default_parser, get_path_tuples, create_file_list,
- link_dataset, random_split, create_label_list)
- CLASSES = ('aircraft', 'oiltank', 'overpass', 'playground')
- SUBSETS = ('train', 'val', 'test')
- SUBDIRS = ('JPEGImages', osp.sep.join(['Annotation', 'xml']))
- FILE_LIST_PATTERN = "{subset}.txt"
- LABEL_LIST_NAME = "labels.txt"
- URL = ""
- if __name__ == '__main__':
- parser = get_default_parser()
- parser.add_argument('--seed', type=int, default=None, help="Random seed.")
- parser.add_argument(
- '--ratios',
- type=float,
- nargs='+',
- default=(0.7, 0.2, 0.1),
- help="Ratios of each subset (train/val or train/val/test).")
- args = parser.parse_args()
- if args.seed is not None:
- random.seed(args.seed)
- if len(args.ratios) not in (2, 3):
- raise ValueError("Wrong number of ratios!")
- out_dir = osp.join(args.out_dataset_dir,
- osp.basename(osp.normpath(args.in_dataset_dir)))
- link_dataset(args.in_dataset_dir, args.out_dataset_dir)
- splits_list = []
- for cls in CLASSES:
- path_tuples = get_path_tuples(
- *(osp.join(out_dir, cls, subdir) for subdir in SUBDIRS),
- data_dir=args.out_dataset_dir)
- splits = random_split(path_tuples, ratios=args.ratios)
- splits_list.append(splits)
- splits = map(partial(reduce, list.__add__), zip(*splits_list))
- for subset, split in zip(SUBSETS, splits):
- file_list = osp.join(
- args.out_dataset_dir, FILE_LIST_PATTERN.format(subset=subset))
- create_file_list(file_list, split)
- print(f"Write file list to {file_list}.")
- label_list = osp.join(args.out_dataset_dir, LABEL_LIST_NAME)
- create_label_list(label_list, CLASSES)
- print(f"Write label list to {label_list}.")
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