xwt_directional_detail — 2D `edges` op

• Data kinds: image → image

• Call: fullseye.apply(img, "xwt_directional_detail", 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.

方向別エッジ検出。1 段の `db2 分解から水平(cH)・垂直(cV)・対角(cD)のいずれか 1 つの詳細サブバンドを選び、絶対値を正規化してから元の解像度までブロック拡大(kron` で 2x2 複製)して返す。

`b でどの方向を見るか選ぶ(min(2,int(b*3)) で cH→cV→cD の 3 択)。a` は未使用。サブバンドは元画像の半分の解像度なのでブロック状に拡大されることに注意(滑らかな拡大ではない)。

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).*

xwt_directional_detail — 2D edges op