extra op• Data kinds: image → region
• Call: fullseye.apply(img, "xsitk_confidence_connected", 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).*
Confidence-connected region growing (SimpleITK `ConfidenceConnected`). Uses the image center as a seed, builds an interval of 'mean +/- multiplier * standard deviation' from the mean and standard deviation of the current region, and expands the connected region while iteratively updating this interval (a more statistical way of choosing the threshold than xsitk_connected_threshold).
> The detailed description below is the original text — the summary and the headings are translated.
`a は反復回数(1+int(a*5) で 1〜6)、b は標準偏差の倍率(1.0+3.0*b` で 1〜4)を振る。初期近傍半径は 2 固定。画像中心付近に対象があることを前提とした op。
• gallery2d_color_artistic 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.
xsitk_confidence_connected 0.50 0.50
▸ Load this pipeline · Load & run
• gallery2d_color_artistic — py -3.11 examples/gallery2d_color_artistic.py
region as input)identity · reg_erode · reg_dilate · reg_open · reg_close · fill_holes · select_largest · remove_small
extra)xsitk_curvature_flow · xsitk_minmax_curv_flow · xsitk_curv_aniso_diff · xsitk_laplacian_sharpen · xsitk_grayscale_fillhole · xsitk_grayscale_grindpeak · xsitk_opening_by_recon · xsitk_closing_by_recon
*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.