identity — 2D misc op

Data kinds: anyany

Call: fullseye.apply(img, "identity", a=0.5, b=0.5) (the 2-D model is one image plus two scalar knobs a,b∈[0,1])

HALCON equivalent: copy_image (the HALCON reference is a useful guide to its meaning and parameters)

Usage

> This operator's description has not been translated yet. The original text follows as it is.

恒等写像。HALCON の `copy_image(Copy an image and allocate new memory for it.)に対応付けられているが、実装は新しいメモリを確保して複製する copy_image` とは異なり、入力の配列をそのまま返すだけ(複製しない)。

`a, b は未使用。sort が ANY`(image/region/feature いずれの入力にも一致)なのはこの op だけの特別扱いで、パイプラインの型を変えずに「何もしない」スロットを置くために使う(進化がスロット数を埋めたいだけのとき等)。値を作り直さず入力をそのまま返すため、呼び出し側で戻り値を書き換えると入力の配列も一緒に変わる点に注意。

References (sample data, literature)

• 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.

Runnable examples (verified samples that actually call this op)

• (none yet)

Ops the type connects to (they accept any as input)

gaussian · mean_box · bilateral · unsharp · median · min_filter · max_filter · percentile

Same category (misc)


*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.