geometry op• Data kinds: image → image
• Call: fullseye.apply(img, "affine_trans_image", a=0.5, b=0.5) (the 2-D model is one image plus two scalar knobs a,b∈[0,1])
• HALCON equivalent: affine_trans_image (the HALCON reference is a useful guide to its meaning and parameters)
A general affine transform combining rotation (`-20 to +20 degrees, determined by a) and shear (determined by b). Applies ndimage.affine_transform relative to the center, filling outside the frame by reflection. Corresponds to HALCON's affine_trans_image` (Apply an arbitrary affine 2D transformation to images) -- HALCON allows passing an arbitrary 2x3/3x3 transform matrix directly, but this is an approximation limited to a two-parameter rotation+shear.
> The detailed description below is the original text — the summary and the headings are translated.
`a が回転角、b` がせん断量を振る。両方が使われる。平行移動・独立な
拡大縮小はこの op では表現できない。
• gallery2d_geometry 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_geometry — py -3.11 examples/gallery2d_geometry.py
image as input)identity · gaussian · mean_box · bilateral · unsharp · median · min_filter · max_filter
geometry)rotate_img · rescale_img · affine_warp · sk_swirl · mirror_image · transpose_region · rotate_image · zoom_image_factor
*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.