smoothing op• Data kinds: image → image
• Call: fullseye.apply(img, "cv_bilateral", a=0.5, b=0.5) (the 2-D model is one image plus two scalar knobs a,b∈[0,1])
• HALCON equivalent: bilateral_filter (the HALCON reference is a useful guide to its meaning and parameters)
Bilateral filter (OpenCV implementation). A Gaussian-style smoothing that weights by both spatial proximity and brightness-value proximity, smoothing only flat areas without blurring edges (boundaries with large brightness differences).
> The detailed description below is the original text — the summary and the headings are translated.
HALCON の bilateral_filter(bilateral filtering of an image.)に相当。実装は `cv2.bilateralFilter(v, d=5, sigmaColor=0.05+0.4*b, sigmaSpace=1.0+3.0*a)` —— カーネル直径 d は 5 に固定、a は空間方向の広がり sigmaSpace を 1.0〜4.0 に、b は輝度方向の許容差 sigmaColor を 0.05〜0.45 に振る(引数の並びが sigmaColor, sigmaSpace の順なので a/b の対応がずれやすい点に注意)。
• gallery2d_smoothing_rank 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_smoothing_rank — py -3.11 examples/gallery2d_smoothing_rank.py
image as input)identity · gaussian · mean_box · bilateral · unsharp · median · min_filter · max_filter
smoothing)gaussian · mean_box · bilateral · unsharp · sk_tv · sk_wavelet · sk_rolling_ball · sk_nlm
*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.