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54 lines
2.0 KiB
Python
54 lines
2.0 KiB
Python
# Copyright (C) 2019 Intel Corporation
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#
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# SPDX-License-Identifier: MIT
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import os.path as osp
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from glob import glob
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from tempfile import TemporaryDirectory
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from pyunpack import Archive
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from cvat.apps.dataset_manager.bindings import (CvatTaskDataExtractor,
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import_dm_annotations, match_dm_item, find_dataset_root)
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from cvat.apps.dataset_manager.util import make_zip_archive
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from datumaro.components.extractor import DatasetItem
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from datumaro.components.project import Dataset
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from datumaro.plugins.yolo_format.extractor import YoloExtractor
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from .registry import dm_env, exporter, importer
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@exporter(name='YOLO', ext='ZIP', version='1.1')
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def _export(dst_file, task_data, save_images=False):
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dataset = Dataset.from_extractors(CvatTaskDataExtractor(
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task_data, include_images=save_images), env=dm_env)
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with TemporaryDirectory() as temp_dir:
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dataset.export(temp_dir, 'yolo', save_images=save_images)
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make_zip_archive(temp_dir, dst_file)
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@importer(name='YOLO', ext='ZIP', version='1.1')
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def _import(src_file, task_data):
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with TemporaryDirectory() as tmp_dir:
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Archive(src_file.name).extractall(tmp_dir)
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image_info = {}
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frames = [YoloExtractor.name_from_path(osp.relpath(p, tmp_dir))
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for p in glob(osp.join(tmp_dir, '**', '*.txt'), recursive=True)]
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root_hint = find_dataset_root(
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[DatasetItem(id=frame) for frame in frames], task_data)
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for frame in frames:
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frame_info = None
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try:
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frame_id = match_dm_item(DatasetItem(id=frame), task_data,
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root_hint=root_hint)
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frame_info = task_data.frame_info[frame_id]
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except Exception: # nosec
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pass
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if frame_info is not None:
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image_info[frame] = (frame_info['height'], frame_info['width'])
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dataset = Dataset.import_from(tmp_dir, 'yolo',
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env=dm_env, image_info=image_info)
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import_dm_annotations(dataset, task_data)
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