sk_area_opening — 2D `morphology` op

• Data kinds: image → image

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

Usage

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

面積オープニング(area opening)。通常のモルフォロジー的開処理が構造要素の形で小さい明部を削るのに対し、こちらは面積(連結画素数)だけで判定し、指定面積未満の明るい連結成分を消す —— 形状に依らず「小さい」ものを落とせる。

HALCON に直接対応するものは無い。実装は `morphology.area_opening(v, area_threshold=int(16+a*100))` —— a は面積しきい値を 16〜116 画素に振る。b は未使用。connectivity は既定の 1(4 近傍)のまま。

Detailed usage guide

• gallery2d_morphology 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_morphology — py -3.11 examples/gallery2d_morphology.py

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

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

Same category (`morphology`)

gerode · gdilate · gopen · gclose · tophat · bothat · morph_grad · cv_open

*Provenance: ops.py — 2D operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

sk_area_opening — 2D morphology op