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gtsrb.py
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import datasets
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from datasets.data_files import DataFilesDict
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from datasets.packaged_modules.imagefolder.imagefolder import ImageFolder, ImageFolderConfig
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logger = datasets.logging.get_logger(__name__)
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class GTSRB(ImageFolder):
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R"""
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GTSRB dataset for image classification.
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"""
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BUILDER_CONFIG_CLASS = ImageFolderConfig
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BUILDER_CONFIGS = [
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ImageFolderConfig(name='default', features=("images", "labels"), data_files=DataFilesDict({split: f"data/{split}.zip" for split in ["train", "test"] + ["contrast", "gaussian_noise", "impulse_noise", "jpeg_compression", "motion_blur", "pixelate", "spatter"]}),)
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]
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classnames = [
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"red and white circle 20 kph speed limit",
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"red and white circle 30 kph speed limit",
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"red and white circle 50 kph speed limit",
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"red and white circle 60 kph speed limit",
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"red and white circle 70 kph speed limit",
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"red and white circle 80 kph speed limit",
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"end / de-restriction of 80 kph speed limit",
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"red and white circle 100 kph speed limit",
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"red and white circle 120 kph speed limit",
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"red and white circle red car and black car no passing",
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"red and white circle red truck and black car no passing",
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"red and white triangle road intersection warning",
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"white and yellow diamond priority road",
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"red and white upside down triangle yield right-of-way",
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"stop",
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"empty red and white circle",
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"red and white circle no truck entry",
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"red circle with white horizonal stripe no entry",
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"red and white triangle with exclamation mark warning",
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"red and white triangle with black left curve approaching warning",
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"red and white triangle with black right curve approaching warning",
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"red and white triangle with black double curve approaching warning",
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"red and white triangle rough / bumpy road warning",
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"red and white triangle car skidding / slipping warning",
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"red and white triangle with merging / narrow lanes warning",
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"red and white triangle with person digging / construction / road work warning",
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"red and white triangle with traffic light approaching warning",
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"red and white triangle with person walking warning",
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"red and white triangle with child and person walking warning",
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"red and white triangle with bicyle warning",
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"red and white triangle with snowflake / ice warning",
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"red and white triangle with deer warning",
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"white circle with gray strike bar no speed limit",
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"blue circle with white right turn arrow mandatory",
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"blue circle with white left turn arrow mandatory",
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"blue circle with white forward arrow mandatory",
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"blue circle with white forward or right turn arrow mandatory",
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"blue circle with white forward or left turn arrow mandatory",
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"blue circle with white keep right arrow mandatory",
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"blue circle with white keep left arrow mandatory",
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"blue circle with white arrows indicating a traffic circle",
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"white circle with gray strike bar indicating no passing for cars has ended",
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"white circle with gray strike bar indicating no passing for trucks has ended",
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]
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clip_templates = [
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lambda c: f'a zoomed in photo of a "{c}" traffic sign.',
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lambda c: f'a centered photo of a "{c}" traffic sign.',
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lambda c: f'a close up photo of a "{c}" traffic sign.',
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]
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def _info(self):
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return datasets.DatasetInfo(
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description="GTSRB dataset for image classification.",
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features=datasets.Features(
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{
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"image": datasets.Image(),
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"label": datasets.ClassLabel(names=self.classnames),
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}
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),
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supervised_keys=("image", "label"),
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task_templates=[datasets.ImageClassification(image_column="image", label_column="label")],
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)
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