annotate_outline_layout — ANNOTATE paper op

• Data kinds: mask → table

• Call: import fullseye as fs; fs.ledger.annotate_outline_layout(mask) (to call the implementation directly, import annotate; annotate.annotate_outline_layout(mask); from the registry, opsannotate.get("annotate_outline_layout"))

Usage

Returns a table (dict): the boundary loops of a binary mask (closed polygons along pixel edges) and its centroid.

Contours come from contours_xld._trace_mask_boundaries (outer + holes, per component). The polygon area matches the mask's pixel count exactly.

Returns

dict

{"contours": [(K,2) arrays of (x,y)], "centroid": (x,y), "area": int, "bbox": (x,y,w,h), "n_loops": int}.

Raises

ValueError

mask is not 2-D, has no true pixels, or is non-finite.

Detailed usage guide

• figure_annotation family guide

Background guides (the physics and conventions behind this op)

• dataset_conventions — Training-dataset conventions — COCO / YOLO / VOC and pitfalls in visual inspection

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.

• The canonical algorithm (author, year) and its uses are named in the family usage guide above.

Runnable examples (verified samples that actually call this op)

• paper_figure — py -3.11 examples/paper_figure.py

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

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Same category (paper)

annotate_leader_layout · annotate_leader · annotate_markers · annotate_legend · annotate_dimension_layout · annotate_dimension · annotate_angle_layout · annotate_angle

*Provenance: annotate.py — ANNOTATE 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.