vol_label — 3D regionprops op

• Data kinds: voxel → labels

• Call: import volops; volops.vol_label(vol_binary, connectivity=26) (or ops3d.get("vol_label"))

Usage

3-D connected-component labelling with a selectable neighbourhood.

Background guides (the physics and conventions behind this op)

• measurement_uncertainty — 計測の不確かさと校正の知識 — 「測れている」を主張するために

References (sample data, literature)

• Sample-data catalog (download URLs / licences) — 2-D uses skimage.data (BSD/public domain) plus synthetic images; 3-D lists download URLs for real data sources (Stanford, PDS, …).

• Operator provenance and references — the sources of the research/methods this op family came from.

Runnable examples (verified samples that actually call this op)

• ct_bone_segmentation — py -3.11 examples_3d/ct_bone_segmentation.py

• molecule_atom_count — py -3.11 examples_3d/molecule_atom_count.py

• vessel_metrology — py -3.11 examples_3d/vessel_metrology.py

Ops the type connects to (they accept labels as input)

fuse_to_voxel · vol_region_props

Same category (regionprops)

label_components · region_props · largest_component · filter_by_volume · inner_box3 · vol_region_props

*Provenance: volops.py — 3D operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.