hx_fuzzy_measure_pairs — 2D halcon_ext op

Data kinds: imagefeature

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

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

Usage

Count edge pairs along the central horizontal profile (the rising boundary of a bright bar to its falling boundary) — 1-D metrology.

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

レベル閾値の交差で境界を 1 回ずつ取る(np.gradient はステップを 2 画素に滲ませ二重計上

するため不可)。閾値 lvl は a で可変。返り値は対の数(/10 で正規化した feature)。

Detailed usage guide

gallery2d_halcon_ext 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_halcon_extpy -3.11 examples/gallery2d_halcon_ext.py

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

identity

Same category (halcon_ext)

hx_gen_circle · hx_gen_ellipse · hx_gen_rectangle2 · hx_gen_checker_region · hx_gen_grid_region · hx_gabor · hx_fit_surface1 · hx_fit_surface2


*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.