region op• Data kinds: region → region
• Call: fullseye.apply(img, "morph_skeleton", a=0.5, b=0.5) (the 2-D model is one image plus two scalar knobs a,b∈[0,1])
• HALCON equivalent: morph_skeleton (the HALCON reference is a useful guide to its meaning and parameters)
> This operator's description has not been translated yet. The original text follows as it is.
領域の骨格線(スケルトン)を抽出する。実装は skimage の `skeletonize`(Zhang–Suen 型の反復細線化アルゴリズム)で、a, b は未使用。
HALCON の `morph_skeleton`(構造要素による反復収縮とその差分から求める形態学的スケルトン)とはアルゴリズムが異なる近似 —— 同じ「1 画素幅の骨格」という結果を目指すが、生成過程・端点の扱いなどが morph_skeleton の定義と一致するとは限らない。
• gallery2d_region family guide
• 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.
• gallery2d_region — py -3.11 examples/gallery2d_region.py
region as input)identity · reg_erode · reg_dilate · reg_open · reg_close · fill_holes · select_largest · remove_small
region)reg_erode · reg_dilate · reg_open · reg_close · fill_holes · select_largest · remove_small · invert_region
*Provenance: ops.py — 2D 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.