| from __future__ import annotations |
|
|
| import argparse |
| import urllib.request |
| import zipfile |
| from pathlib import Path |
|
|
| from tqdm import tqdm |
|
|
| from common import ROOT |
|
|
|
|
| BASE_URL = "https://www.iro.umontreal.ca/~labimage/Dataset/chute-zip" |
|
|
|
|
| def download(url: str, dst: Path) -> None: |
| dst.parent.mkdir(parents=True, exist_ok=True) |
| part = dst.with_suffix(dst.suffix + ".part") |
| if part.exists(): |
| part.unlink() |
| with urllib.request.urlopen(url) as response, open(part, "wb") as f: |
| total = int(response.headers.get("Content-Length") or 0) |
| with tqdm(total=total, unit="B", unit_scale=True, desc=dst.name) as bar: |
| while True: |
| chunk = response.read(1024 * 1024) |
| if not chunk: |
| break |
| f.write(chunk) |
| bar.update(len(chunk)) |
| part.replace(dst) |
|
|
|
|
| def main() -> None: |
| ap = argparse.ArgumentParser() |
| ap.add_argument("--keep-zips", action="store_true") |
| args = ap.parse_args() |
| for idx in range(1, 25): |
| name = f"chute{idx:02d}.zip" |
| label_dir = "fall" if idx <= 22 else "nonfall" |
| zip_path = ROOT / "data/raw/MCFD_zips" / name |
| out_dir = ROOT / "data/raw/MCFD" / label_dir / f"chute{idx:02d}" |
| if out_dir.exists() and any(out_dir.iterdir()): |
| continue |
| if zip_path.exists() and not zipfile.is_zipfile(zip_path): |
| zip_path.unlink() |
| if not zip_path.exists(): |
| download(f"{BASE_URL}/{name}", zip_path) |
| out_dir.mkdir(parents=True, exist_ok=True) |
| with zipfile.ZipFile(zip_path) as zf: |
| zf.extractall(out_dir) |
| if zip_path.exists() and not args.keep_zips: |
| zip_path.unlink() |
| print(f"Prepared MCFD scenarios under {ROOT / 'data/raw/MCFD'}") |
|
|
|
|
| if __name__ == "__main__": |
| main() |
|
|
