Datasets:
Delete loading script
Browse files
LADaS.py
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import glob
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import os
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import yaml
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import datasets
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from PIL import Image
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_VERSION = "2024-06-04"
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_URL = f"https://github.com/DEFI-COLaF/LADaS/archive/refs/tags/{_VERSION}.tar.gz"
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_HOMEPAGE = "https://github.com/DEFI-COLaF/LADaS"
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_LICENSE = "CC BY 4.0"
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_CITATION = """\
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@misc{Clerice_Layout_Analysis_Dataset,
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author = {Clérice, Thibault and Janès, Juliette and Scheithauer, Hugo and Bénière, Sarah and Langlais, Pierre-Carl and Romary, Laurent and Sagot, Benoit and Bougrelle, Roxane},
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title = {{Layout Analysis Dataset with SegmOnto (LADaS)}},
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url = {https://github.com/DEFI-COLaF/LADaS}
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}
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"""
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_CATEGORIES = ['AdvertisementZone', 'DigitizationArtefactZone', 'DropCapitalZone', 'FigureZone', 'FigureZone-FigDesc', 'FigureZone-Head', 'GraphicZone', 'GraphicZone-Decoration', 'GraphicZone-FigDesc', 'GraphicZone-Head', 'GraphicZone-Maths', 'GraphicZone-Part', 'GraphicZone-TextualContent', 'MainZone-Date', 'MainZone-Entry', 'MainZone-Entry-Continued', 'MainZone-Form', 'MainZone-Head', 'MainZone-Lg', 'MainZone-Lg-Continued', 'MainZone-List', 'MainZone-List-Continued', 'MainZone-Other', 'MainZone-P', 'MainZone-P-Continued', 'MainZone-Signature', 'MainZone-Sp', 'MainZone-Sp-Continued', 'MarginTextZone-ManuscriptAddendum', 'MarginTextZone-Notes', 'MarginTextZone-Notes-Continued', 'NumberingZone', 'PageTitleZone', 'PageTitleZone-Index', 'QuireMarkZone', 'RunningTitleZone', 'StampZone', 'StampZone-Sticker', 'TableZone', 'TableZone-Continued', 'TableZone-Head']
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class LadasConfig(datasets.BuilderConfig):
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"""Builder Config for LADaS"""
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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class LadasDataset(datasets.GeneratorBasedBuilder):
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VERSION = datasets.Version(_VERSION.replace("-", "."))
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BUILDER_CONFIGS = [
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LadasConfig(
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name="full",
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description="Full version of the dataset"
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)
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]
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def _info(self) -> datasets.DatasetInfo:
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features = datasets.Features({
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"image_path": datasets.Value("string"),
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"image": datasets.Image(),
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# "width": datasets.Value("int32"),
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# "height": datasets.Value("int32"),
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"objects": datasets.Sequence(
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{
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"bbox": datasets.Sequence(datasets.Value("float32"), length=4),
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"category": datasets.ClassLabel(names=_CATEGORIES),
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}
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)
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})
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return datasets.DatasetInfo(
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features=features,
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homepage=_HOMEPAGE,
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citation=_CITATION,
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license=_LICENSE
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)
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def _split_generators(self, dl_manager):
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urls_to_download = _URL
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downloaded_files = dl_manager.download_and_extract(urls_to_download)
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return [
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datasets.SplitGenerator(
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name=datasets.Split.TRAIN,
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gen_kwargs={
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"local_dir": downloaded_files,
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"split": "train"
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},
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),
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datasets.SplitGenerator(
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name=datasets.Split.VALIDATION,
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gen_kwargs={
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"local_dir": downloaded_files,
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"split": "valid"
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},
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),
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datasets.SplitGenerator(
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name=datasets.Split.TEST,
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gen_kwargs={
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"local_dir": downloaded_files,
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"split": "test"
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},
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),
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]
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def _generate_examples(self, local_dir: str, split: str):
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idx = 0
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for file in glob.glob(os.path.join(local_dir, "*", "data", "*", split, "labels", "*.txt")):
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objects = []
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with open(file) as f:
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for line in f:
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cls, *bbox = line.strip().split()
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objects.append({"category": _CATEGORIES[int(cls)], "bbox": list(map(float, bbox))})
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image_path = os.path.normpath(file).split(os.sep)
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image_path = os.path.join(*image_path[:-2], "images", image_path[-1].replace(".txt", ".jpg"))
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if file.startswith("/") and not image_path.startswith("/"):
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image_path = "/" + image_path
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with open(image_path, "rb") as f:
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image_bytes = f.read()
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f.seek(0)
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with Image.open(image_path) as im:
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width, height = im.size
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yield idx, {
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"image_id": f"{image_path[-4]}/{image_path[-1]}",
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"image": {"path": image_path, "bytes": image_bytes},
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"width": width,
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"height": height,
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"objects": objects,
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}
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idx += 1
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