macro_edge — 2D macro op

Data kinds: imageregion

Call: fullseye.apply(img, "macro_edge", a=0.5, b=0.5) (the 2-D model is one image plus two scalar knobs a,b∈[0,1])

Usage

A fixed pipeline discovered by evolutionary search: `gamma(a=0.39,b=0.94)bilateral(a=0.22,b=0.08)sobel_mag(a=0.81,b=0.80)scale_clip(a=1.00,b=0.90)otsu(a=0.78,b=0.93)` (5 stages: gamma correction → smoothing → gradient magnitude → scaling → binarization by Otsu's method).

> The detailed description below is the original text — the summary and the headings are translated.

`a, b` は凍結済みで未使用。edge 課題(F1)でロック済みホールドアウト0.91、手作りベースライン 0.77 を上回る。出力は image ではなく region(二値マスク)。HALCON に対応する単一オペレータは無い。

Detailed usage guide

gallery2d_physics_alife_3d family guide

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)

gallery2d_physics_alife_3dpy -3.11 examples/gallery2d_physics_alife_3d.py

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

identity · reg_erode · reg_dilate · reg_open · reg_close · fill_holes · select_largest · remove_small

Same category (macro)

macro_denoise · macro_binarize · macro_vol_denoise


*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.