split_summary.json

{
  "pilot": "iclight_relighting_v3",
  "cache": "cache_named_v2",
  "val_split_ratio": 0.05,
  "method": "deterministic: sha1(f'{dataset_name}:{sample_id_abs_path}')[:8]/2**64; <r->val, <2r->test, else train (matches trainer _record_split)",
  "note": "split is PER-SAMPLE (npz path), not per-object; the same object can appear in different splits.",
  "total": 30822,
  "counts": {
    "train": 27748,
    "val": 1489,
    "test": 1585
  },
  "counts_by_dataset_name": {
    "test|named": 549,
    "test|named_refill": 1036,
    "train|named": 9199,
    "train|named_refill": 18549,
    "val|named": 526,
    "val|named_refill": 963
  },
  "unique_objects_per_split": {
    "train": 309,
    "val": 305,
    "test": 308
  },
  "objects_overlap_train_val": 305,
  "objects_overlap_train_test": 308
}