Download InterHand2.6M/code/validate_dataset.py from WhynotGPT/Pretrain: direct link, hf CLI and curl.
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https://huggingface.co/datasets/WhynotGPT/Pretrain/resolve/main/InterHand2.6M/code/validate_dataset.py
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hf download hf://datasets/WhynotGPT/Pretrain/InterHand2.6M/code/validate_dataset.py
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| """Check official split counts, every referenced image, and sampled JPEG decoding.""" | |
| from pathlib import Path | |
| import collections | |
| import csv | |
| import hashlib | |
| import json | |
| import os | |
| import sys | |
| import time | |
| ROOT = Path(__file__).resolve().parents[1] | |
| sys.path.insert(0, str(ROOT / "code/vendor")) | |
| import ijson | |
| from PIL import Image | |
| EXPECTED = {"train": 1361062, "val": 380125, "test": 849160} | |
| def main(): | |
| parts = json.loads((ROOT / "audit/image_parts_verified.json").read_text()) | |
| annotations = json.loads((ROOT / "audit/annotations_verification.json").read_text()) | |
| extraction = json.loads((ROOT / "audit/images_extraction.json").read_text()) | |
| assert parts["complete"] and len(parts["verified"]) == 44 | |
| assert annotations["complete"] and len(annotations["verified"]) == 14 | |
| assert extraction["status"] == "complete" | |
| rows, errors = [], [] | |
| for split, expected in EXPECTED.items(): | |
| count = missing = zero = decoded = mismatched = 0 | |
| annotated_captures, subjects, cameras, sequences = set(), set(), set(), set() | |
| source = ROOT / "annotations" / split / f"InterHand2.6M_{split}_data.json" | |
| sample_every = max(1, expected // 128) | |
| with source.open("rb") as f: | |
| for item in ijson.items(f, "images.item"): | |
| path = ROOT / "images" / split / item["file_name"] | |
| count += 1 | |
| annotated_captures.add(item["capture"]) | |
| subjects.add(item["subject"]) | |
| cameras.add(item["camera"]) | |
| sequences.add((item["capture"], item["seq_name"])) | |
| try: | |
| size = path.stat().st_size | |
| except FileNotFoundError: | |
| missing += 1 | |
| if len(errors) < 100: | |
| errors.append({"type": "missing_image", "path": str(path)}) | |
| continue | |
| if size == 0: | |
| zero += 1 | |
| if (count - 1) % sample_every == 0: | |
| try: | |
| with Image.open(path) as image: | |
| image.load() | |
| if image.size != (item["width"], item["height"]): | |
| mismatched += 1 | |
| errors.append({"type": "image_dimension_mismatch", "path": str(path)}) | |
| decoded += 1 | |
| except Exception as exc: | |
| errors.append({"type": "image_decode_failure", "path": str(path), "error": str(exc)}) | |
| row = {"split": split, "official_expected_images": expected, "annotation_images": count, | |
| "missing_referenced_images": missing, "empty_referenced_images": zero, | |
| "jpeg_samples_decoded": decoded, "sample_dimension_mismatches": mismatched, | |
| "annotated_captures": len(annotated_captures), "subjects": len(subjects), | |
| "camera_ids": len(cameras), "capture_sequence_pairs": len(sequences)} | |
| rows.append(row) | |
| print("CHECKED", json.dumps(row), flush=True) | |
| if count != expected: | |
| errors.append({"type": "unexpected_split_count", "split": split, "count": count}) | |
| # Count the extracted tree independently of the annotation index. | |
| raw_counts = collections.Counter() | |
| raw_bytes = 0 | |
| for split in EXPECTED: | |
| for base, dirs, files in os.walk(ROOT / "images" / split): | |
| for name in files: | |
| if name.lower().endswith((".jpg", ".jpeg", ".png")): | |
| raw_counts[split] += 1 | |
| raw_bytes += (Path(base) / name).stat().st_size | |
| for row in rows: | |
| row["extracted_image_files"] = raw_counts[row["split"]] | |
| with (ROOT / "audit/split_inventory.csv").open("w") as f: | |
| writer = csv.DictWriter(f, fieldnames=list(rows[0])) | |
| writer.writeheader() | |
| writer.writerows(rows) | |
| # Checksums also cover annotation files and the official source documents. | |
| lines = [] | |
| for entry in parts["verified"]: | |
| lines.append(entry["sha256"] + " archives/5fps/" + entry["name"]) | |
| for entry in annotations["verified"]: | |
| lines.append(entry["sha256"] + " " + entry["local_path"]) | |
| supplementary_path = ROOT / "audit/human_annotation_ids.json" | |
| if supplementary_path.exists(): | |
| for entry in json.loads(supplementary_path.read_text()): | |
| lines.append(entry["sha256"] + " " + entry["local_path"]) | |
| for folder in ["sources", "code"]: | |
| for path in sorted((ROOT / folder).iterdir()): | |
| if path.is_file(): | |
| lines.append(hashlib.sha256(path.read_bytes()).hexdigest() + " " + str(path.relative_to(ROOT))) | |
| (ROOT / "audit/SHA256SUMS").write_text("\n".join(lines) + "\n") | |
| missing_total = sum(row["missing_referenced_images"] for row in rows) | |
| empty_total = sum(row["empty_referenced_images"] for row in rows) | |
| report = {"status": "PASS" if not errors and not missing_total and not empty_total else "FAIL", | |
| "dataset": "InterHand2.6M", "version": "v1.0", "fps": 5, | |
| "host": os.uname().nodename, "root": str(ROOT), "checked_unix": time.time(), | |
| "official_md5_parts_verified": len(parts["verified"]), | |
| "annotation_files_validated": len(annotations["verified"]), | |
| "referenced_images_checked": sum(row["annotation_images"] for row in rows), | |
| "extracted_image_files": sum(raw_counts.values()), "extracted_image_bytes": raw_bytes, | |
| "image_archive_bytes": sum(x["bytes"] for x in parts["verified"]), | |
| "splits": rows, "errors": errors, | |
| "scope": "Full official v1.0 5 fps train/val/test with current official annotations; excludes 30 fps expansion.", | |
| "note": "File integrity and annotation/image correspondence checks are not a GT-accuracy certification."} | |
| (ROOT / "audit/final_validation.json").write_text(json.dumps(report, indent=2) + "\n") | |
| print("FINAL", report["status"], flush=True) | |
| if report["status"] != "PASS": | |
| raise SystemExit(1) | |
| if __name__ == "__main__": | |
| main() | |