| import argparse |
| import os.path as osp |
| from functools import partial |
|
|
| import mmcv |
| import numpy as np |
| from detail import Detail |
| from PIL import Image |
|
|
| _mapping = np.sort( |
| np.array([ |
| 0, 2, 259, 260, 415, 324, 9, 258, 144, 18, 19, 22, 23, 397, 25, 284, |
| 158, 159, 416, 33, 162, 420, 454, 295, 296, 427, 44, 45, 46, 308, 59, |
| 440, 445, 31, 232, 65, 354, 424, 68, 326, 72, 458, 34, 207, 80, 355, |
| 85, 347, 220, 349, 360, 98, 187, 104, 105, 366, 189, 368, 113, 115 |
| ])) |
| _key = np.array(range(len(_mapping))).astype('uint8') |
|
|
|
|
| def generate_labels(img_id, detail, out_dir): |
|
|
| def _class_to_index(mask, _mapping, _key): |
| |
| values = np.unique(mask) |
| for i in range(len(values)): |
| assert (values[i] in _mapping) |
| index = np.digitize(mask.ravel(), _mapping, right=True) |
| return _key[index].reshape(mask.shape) |
|
|
| mask = Image.fromarray( |
| _class_to_index(detail.getMask(img_id), _mapping=_mapping, _key=_key)) |
| filename = img_id['file_name'] |
| mask.save(osp.join(out_dir, filename.replace('jpg', 'png'))) |
| return osp.splitext(osp.basename(filename))[0] |
|
|
|
|
| def parse_args(): |
| parser = argparse.ArgumentParser( |
| description='Convert PASCAL VOC annotations to mmsegmentation format') |
| parser.add_argument('devkit_path', help='pascal voc devkit path') |
| parser.add_argument('json_path', help='annoation json filepath') |
| parser.add_argument('-o', '--out_dir', help='output path') |
| args = parser.parse_args() |
| return args |
|
|
|
|
| def main(): |
| args = parse_args() |
| devkit_path = args.devkit_path |
| if args.out_dir is None: |
| out_dir = osp.join(devkit_path, 'VOC2010', 'SegmentationClassContext') |
| else: |
| out_dir = args.out_dir |
| json_path = args.json_path |
| mmcv.mkdir_or_exist(out_dir) |
| img_dir = osp.join(devkit_path, 'VOC2010', 'JPEGImages') |
|
|
| train_detail = Detail(json_path, img_dir, 'train') |
| train_ids = train_detail.getImgs() |
|
|
| val_detail = Detail(json_path, img_dir, 'val') |
| val_ids = val_detail.getImgs() |
|
|
| mmcv.mkdir_or_exist( |
| osp.join(devkit_path, 'VOC2010/ImageSets/SegmentationContext')) |
|
|
| train_list = mmcv.track_progress( |
| partial(generate_labels, detail=train_detail, out_dir=out_dir), |
| train_ids) |
| with open( |
| osp.join(devkit_path, 'VOC2010/ImageSets/SegmentationContext', |
| 'train.txt'), 'w') as f: |
| f.writelines(line + '\n' for line in sorted(train_list)) |
|
|
| val_list = mmcv.track_progress( |
| partial(generate_labels, detail=val_detail, out_dir=out_dir), val_ids) |
| with open( |
| osp.join(devkit_path, 'VOC2010/ImageSets/SegmentationContext', |
| 'val.txt'), 'w') as f: |
| f.writelines(line + '\n' for line in sorted(val_list)) |
|
|
| print('Done!') |
|
|
|
|
| if __name__ == '__main__': |
| main() |
|
|
