m1_fuzzy_measure_pos — 2D measure1d op

Data kinds: imagecontour

Call: fullseye.apply(img, "m1_fuzzy_measure_pos", 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_pos (the HALCON reference is a useful guide to its meaning and parameters)

Usage

Sieves edges along a caliper line through the centre by a fuzzy membership score and returns them (equivalent to HALCON `fuzzy_measure_pos`: detects straight edges perpendicular to a rectangle/arc using fuzzy judgement).

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

エッジ検出は `m1_measure_pos と同じ。各エッジの振幅を(amp - lo) / (gmax - lo)lo = 0.05*gmax)で [0,1] のファジィスコアに写像し、b(0〜1)以上のものだけを残す(0/1 のハードしきい値ではなく振幅に応じた連続的な信頼度で選別する点が measure_pos と違う)。a は線の向き(theta = a*pi`)。戻り値は CONTOUR、座標単位はピクセル。

Detailed usage guide

gallery2d_contour_measure family guide

Background guides (the physics and conventions behind this op)

measurement_uncertainty — 計測の不確かさと校正の知識 — 「測れている」を主張するために

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_contour_measurepy -3.11 examples/gallery2d_contour_measure.py

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

identity · select_contours · smooth_contours · fit_line_contours · contours_to_region · count_contours · total_length · select_contours_xld

Same category (measure1d)

m1_measure_projection · m1_measure_pos · m1_measure_thresh · m1_measure_pairs


*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.