Spaces:
Runtime error
Runtime error
File size: 1,319 Bytes
4d0eb62 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 |
# Copyright (c) OpenMMLab. All rights reserved.
from pathlib import Path
from typing import List
import mmengine
from mmengine.dataset import BaseDataset
from mmengine.fileio import get_file_backend
from mmpretrain.registry import DATASETS
@DATASETS.register_module()
class COCOCaption(BaseDataset):
"""COCO Caption dataset.
Args:
data_root (str): The root directory for ``data_prefix`` and
``ann_file``..
ann_file (str): Annotation file path.
data_prefix (dict): Prefix for data field. Defaults to
``dict(img_path='')``.
pipeline (Sequence): Processing pipeline. Defaults to an empty tuple.
**kwargs: Other keyword arguments in :class:`BaseDataset`.
"""
def load_data_list(self) -> List[dict]:
"""Load data list."""
img_prefix = self.data_prefix['img_path']
annotations = mmengine.load(self.ann_file)
file_backend = get_file_backend(img_prefix)
data_list = []
for ann in annotations:
data_info = {
'image_id': Path(ann['image']).stem.split('_')[-1],
'img_path': file_backend.join_path(img_prefix, ann['image']),
'gt_caption': ann['caption'],
}
data_list.append(data_info)
return data_list
|