smoothing op• Data kinds: image → image
• Call: fullseye.apply(img, "xwt_visushrink", a=0.5, b=0.5) (the 2-D model is one image plus two scalar knobs a,b∈[0,1])
*The figure is the real output on a synthetic 128×128 input. Left: input, right: output (a non-image return value is shown as the value itself).*
VisuShrink-style wavelet denoising. Decomposes with `db4 over 2 levels, applies soft thresholding to each level's detail coefficients, then reconstructs via inverse transform (VisuShrink normally derives this threshold automatically from the noise level, but here it is a simplified version given directly via a`).
> The detailed description below is the original text — the summary and the headings are translated.
`a は閾値(0.05+0.5*a で 0.05〜0.55)を振る —— 大きいほど強く平滑化されディテールが失われる。b` は未使用。出力は元画像サイズに切り詰めて [0,1] にクリップ。
• 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.
The program below has been verified to run (same input as the figure). In Studio's help this block becomes buttons that load and run it on the spot.
xwt_visushrink 0.35 0.50
▸ Load this pipeline · Load & run
• 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.