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# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under the license found in the
# LICENSE file in the root directory of this source tree.
import argparse
import os.path as osp
import mmengine
from mmengine import Config, DictAction
from mmengine.registry import init_default_scope
from mmdet.registry import DATASETS, VISUALIZERS
def parse_args():
parser = argparse.ArgumentParser(description='Browse a dataset')
parser.add_argument('config', help='train config file path')
parser.add_argument(
'--output-dir',
default=None,
type=str,
help='If there is no display interface, you can save it')
parser.add_argument('--show', default=True, action='store_true')
parser.add_argument(
'--show-interval',
type=float,
default=2,
help='the interval of show (s)')
parser.add_argument(
'--cfg-options',
nargs='+',
action=DictAction,
help='override some settings in the used config, the key-value pair '
'in xxx=yyy format will be merged into config file. If the value to '
'be overwritten is a list, it should be like key="[a,b]" or key=a,b '
'It also allows nested list/tuple values, e.g. key="[(a,b),(c,d)]" '
'Note that the quotation marks are necessary and that no white space '
'is allowed.')
args = parser.parse_args()
return args
def main():
args = parse_args()
cfg = Config.fromfile(args.config)
if args.cfg_options is not None:
cfg.merge_from_dict(args.cfg_options)
init_default_scope(cfg.get('default_scope', 'mmdet'))
dataset = DATASETS.build(cfg.train_dataloader.dataset)
visualizer = VISUALIZERS.build(cfg.visualizer)
visualizer.dataset_meta = dataset.metainfo
progress_bar = mmengine.ProgressBar(len(dataset))
for idx, item in enumerate(dataset): # inputs data_samples
data_sample = item['data_samples']
input = item['inputs']
for img_idx in range(len(data_sample)):
img_data_sample = data_sample[img_idx]
img_path = img_data_sample.img_path
img = input[img_idx].permute(1, 2, 0).numpy()
out_file = osp.join(
args.output_dir,
str(idx).zfill(6),
f'img_{img_idx}.jpg') if args.output_dir is not None else None
img = img[..., [2, 1, 0]] # bgr to rgb
visualizer.add_datasample(
osp.basename(img_path),
img,
data_sample=img_data_sample,
draw_pred=False,
show=args.show,
wait_time=args.show_interval,
out_file=out_file)
# Record file path mapping.
if args.output_dir is not None:
with open(
osp.join(args.output_dir,
str(idx).zfill(6), 'info.txt'), 'a') as f:
f.write(f'The source filepath of img_{img_idx}.jpg'
f'is `{img_path}`.\n')
progress_bar.update()
if __name__ == '__main__':
main()
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