region op• Data kinds: region → region
• Call: fullseye.apply(img, "get_region_convex", a=0.5, b=0.5) (the 2-D model is one image plus two scalar knobs a,b∈[0,1])
• HALCON equivalent: get_region_convex (the HALCON reference is a useful guide to its meaning and parameters)
Returns the convex hull of the region as a filled region (`skimage.morphology.convex_hull_image). a and b are unused. Same implementation as shape_trans` (the seed op that converts shape to its convex hull).
> The detailed description below is the original text — the summary and the headings are translated.
HALCON の `get_region_convex`(領域の凸包を XLD 輪郭として取得する演算)とは出力形式が異なる近似 —— 輪郭の座標列ではなく塗りつぶした region を返す。
• 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.