Delete loading script
Browse files
Test2.py
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# TestNew.py
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import json
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import random
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from datasets import (
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BuilderConfig,
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DatasetInfo,
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DownloadManager,
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GeneratorBasedBuilder,
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SplitGenerator,
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Split,
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Features,
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Image,
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Sequence,
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Value,
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)
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from huggingface_hub import hf_hub_url
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_REPO_ID = "iamirulofficial/TestNew" # change if you ever fork the repo
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class ImageSubsetConfig(BuilderConfig):
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"""BuilderConfig for full dataset vs. small random sample."""
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def __init__(self, name, sample_size=None, **kwargs):
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super().__init__(
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name=name,
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version="1.0.1",
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description=kwargs.get("description", "")
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)
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self.sample_size = sample_size
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class MyImageDataset(GeneratorBasedBuilder):
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"""Images + 2‑D actuated_angle labels stored in metadata.json."""
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BUILDER_CONFIGS = [
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ImageSubsetConfig(
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name="full",
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sample_size=None, # all images
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description="Entire dataset (≈100 GB)"
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),
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ImageSubsetConfig(
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name="small",
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sample_size=2, # tiny sample for quick tests
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description="Two random images"
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),
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]
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DEFAULT_CONFIG_NAME = "small"
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def _info(self) -> DatasetInfo:
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return DatasetInfo(
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description="Images with a 2‑D actuated_angle from metadata.json",
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features=Features(
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{
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"image": Image(), # PIL.Image will be returned
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"actuated_angle": Sequence(Value("int32")), # [angle0, angle1]
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}
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),
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supervised_keys=None,
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)
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# --------------------------------------------------------------------- #
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# Download phase #
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# --------------------------------------------------------------------- #
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def _split_generators(self, dl_manager: DownloadManager):
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# 1️⃣ Download metadata.json (tiny text file)
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meta_path = dl_manager.download(
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hf_hub_url(_REPO_ID, "metadata.json", repo_type="dataset")
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)
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# 2️⃣ Decide which filenames we need
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with open(meta_path, encoding="utf-8") as f:
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metadata = json.load(f) # {"frame_000.png": {"0":…, …}, …}
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all_fnames = list(metadata)
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if self.config.sample_size: # small‑config branch
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random.seed(42)
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selected = sorted(random.sample(all_fnames, self.config.sample_size))
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else:
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selected = sorted(all_fnames) # full dataset
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# 3️⃣ Build URLs → dl_manager.download() → local paths
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url_dict = {
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fname: hf_hub_url(
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_REPO_ID, f"images/{fname}", repo_type="dataset"
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)
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for fname in selected
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}
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img_paths = dl_manager.download(url_dict) # same keys, but local files
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return [
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SplitGenerator(
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name=Split.TRAIN,
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gen_kwargs={
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"img_paths": img_paths,
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"metadata": metadata,
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},
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)
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]
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# --------------------------------------------------------------------- #
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# Generate examples #
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# --------------------------------------------------------------------- #
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def _generate_examples(self, img_paths: dict, metadata: dict):
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"""
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Yields (key, example) where example =
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{ "image": <local‑file‑path>, "actuated_angle": [int, int] }
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"""
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for idx, (fname, local_path) in enumerate(img_paths.items()):
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meta = metadata.get(fname, {})
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angles = [int(meta.get("0", 0)), int(meta.get("1", 0))]
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yield idx, {"image": local_path, "actuated_angle": angles}
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