gray_erosion — 2D `morphology` op

• Data kinds: image → image

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

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

Usage

Grayscale erosion (`ndimage.grey_erosion). Replaces each pixel with the minimum value within a rectangular structuring element (default shape="rect"), eroding bright details. Equivalent to HALCON's gray_erosion` (Perform a gray value erosion on an image.).

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

`a が構造要素のサイズを {3,5,7,9}(_k(a)、矩形)で振る。b` は

このバックエンドの全グレーモルフォロジー op に共通して未使用。円形

構造要素が欲しい場合は `gray_erosion` ではなく形状指定つきの派生

(`*_shape`)を使う。

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 · sk_area_opening

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

gray_erosion — 2D morphology op