edges op• Data kinds: image → image
• Call: fullseye.apply(img, "xsk3_corner_moravec", 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).*
Moravec corner detection (skimage `feature.corner_moravec`). One of the most classic corner detectors (a predecessor of Harris/Shi-Tomasi), which takes as the corner strength the minimum pixel-value difference obtained by shifting a small window centered on each pixel up/down/left/right/diagonally. The result is normalized by its maximum absolute value.
> The detailed description below is the original text — the summary and the headings are translated.
`a は窓サイズ(1+2*int(a*2) で 1・3・5 のいずれか)を振る。b` は未使用。方向依存の格子模様に弱いという Moravec 法自体の既知の弱点を引き継ぐ。
• gallery2d_edges 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.
xsk3_corner_moravec 0.40 0.50
▸ Load this pipeline · Load & run
• gallery2d_edges — py -3.11 examples/gallery2d_edges.py
image as input)identity · gaussian · mean_box · bilateral · unsharp · median · min_filter · max_filter
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).*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.