geometry op• Data kinds: image → image
• Call: fullseye.apply(img, "affine_trans_image_size", 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_size (the HALCON reference is a useful guide to its meaning and parameters)
Applies an affine transform (rotation + shear) to the image. The implementation shares the `affine branch of _sh_geom with affine_trans_image`; a sets the rotation angle to -20 to +20 degrees, and b sets the shear amount. Out-of-bounds areas are filled by reflection (reflect).
> The detailed description below is the original text — the summary and the headings are translated.
HALCON の `affine_trans_image_size（アフィン変換を適用し、出力画像のキャンバスサイズを明示的に指定できる演算）とは異なり、この実装は出力サイズの指定を受け付けず、常に入力と同じキャンバスサイズを保つ近似（affine_trans_image` と実質同一の実装）。
• 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.