| import argparse |
| import os.path as osp |
|
|
| import mmcv |
| from cityscapesscripts.preparation.json2labelImg import json2labelImg |
|
|
|
|
| def convert_json_to_label(json_file): |
| label_file = json_file.replace('_polygons.json', '_labelTrainIds.png') |
| json2labelImg(json_file, label_file, 'trainIds') |
|
|
|
|
| def parse_args(): |
| parser = argparse.ArgumentParser( |
| description='Convert Cityscapes annotations to TrainIds') |
| parser.add_argument('cityscapes_path', help='cityscapes data path') |
| parser.add_argument('--gt-dir', default='gtFine', type=str) |
| parser.add_argument('-o', '--out-dir', help='output path') |
| parser.add_argument( |
| '--nproc', default=1, type=int, help='number of process') |
| args = parser.parse_args() |
| return args |
|
|
|
|
| def main(): |
| args = parse_args() |
| cityscapes_path = args.cityscapes_path |
| out_dir = args.out_dir if args.out_dir else cityscapes_path |
| mmcv.mkdir_or_exist(out_dir) |
|
|
| gt_dir = osp.join(cityscapes_path, args.gt_dir) |
|
|
| poly_files = [] |
| for poly in mmcv.scandir(gt_dir, '_polygons.json', recursive=True): |
| poly_file = osp.join(gt_dir, poly) |
| poly_files.append(poly_file) |
| if args.nproc > 1: |
| mmcv.track_parallel_progress(convert_json_to_label, poly_files, |
| args.nproc) |
| else: |
| mmcv.track_progress(convert_json_to_label, poly_files) |
|
|
| split_names = ['train', 'val', 'test'] |
|
|
| for split in split_names: |
| filenames = [] |
| for poly in mmcv.scandir( |
| osp.join(gt_dir, split), '_polygons.json', recursive=True): |
| filenames.append(poly.replace('_gtFine_polygons.json', '')) |
| with open(osp.join(out_dir, f'{split}.txt'), 'w') as f: |
| f.writelines(f + '\n' for f in filenames) |
|
|
|
|
| if __name__ == '__main__': |
| main() |
|
|
