points_harris_binomial — 2D edges op

• Data kinds: image → image

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

• HALCON equivalent: points_harris_binomial (the HALCON reference is a useful guide to its meaning and parameters)

Usage

> This operator's description has not been translated yet. The original text follows as it is.

二項(ガウス)平滑化を前段に挟んだ Harris コーナー応答。まず `b` で

決まるシグマで画像を平滑化し、その上で Harris 応答(skimage があれば

`corner_harris`、無ければ構造テンソルを手計算、k=0.04)を求める。HALCON

の `points_harris_binomial`（Detect points of interest using the

binomial approximation of the Harris operator.）に相当。

`a が Harris 応答自体のシグマ(0.5〜2.5)を、b` が前段の平滑化シグマ

(0.5〜2.0)を振る。両方が使われる。

Detailed usage guide

• gallery2d_edges 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_edges — py -3.11 examples/gallery2d_edges.py

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

identity · gaussian · mean_box · bilateral · unsharp · median · min_filter · max_filter

Same category (edges)

sobel_mag · prewitt_mag · roberts_mag · dog · grad_dir · log · corner_response · sk_scharr

*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.