segmentation op• Data kinds: image → image
• Call: fullseye.apply(img, "xcv2_meanshift", a=0.5, b=0.5) (the 2-D model is one image plus two scalar knobs a,b∈[0,1])
Smooths color/brightness region by region using mean-shift filtering (`cv2.pyrMeanShiftFiltering`).
> The detailed description below is the original text — the summary and the headings are translated.
`a は空間窓半径 sp を 5〜30 に振り(sp = 5 + 25*a)、b` は
輝度(色)レンジ `sr を 10〜50 に振る(sr = 10 + 40*b`)。グレースケール
画像を内部で 3ch BGR に複製してから処理し、結果を再びグレースケールへ
戻す。エッジを保ったまま平坦な領域を単色化する前処理(減色・セグメンテー
ション前処理)に向く。
• gallery2d_segmentation family guide
• 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.
• gallery2d_segmentation — py -3.11 examples/gallery2d_segmentation.py
image as input)identity · gaussian · mean_box · bilateral · unsharp · median · min_filter · max_filter
segmentation)threshold · otsu · canny · adaptive_gauss_thresh · sk_otsu · sk_li · sk_yen · sk_sauvola
*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.