refocus op• データ種: lightfield → images
• 呼び出し: import lightfield; lightfield.lf_focal_stack(lf, slopes=(-2.0, -1.0, 0.0, 1.0, 2.0), *, interp='linear', edge='nearest') (または opslightfield.get("lf_focal_stack"))
Refocus at every slope in *slopes* — a focal stack from one exposure.
Returns a `list of (H, W) images (the images` type), in the order
given, so :mod:focus_stack's fusion and any multi-image operator applies
unchanged. The physical camera equivalent is racking the focus N times; here
it costs one exposure and `len(slopes) * V * U` image shifts.
Raises `ValueError`: *lf* not a valid light field, *slopes* empty or
longer than :data:MAX_STACK_SLICES, any slope non-finite or over
:data:MAX_ABS_SLOPE, a stack larger than :data:MAX_STACK_ELEMENTS,
unknown *interp* / *edge*.
• サンプルデータ カタログ(DL URL / ライセンス) — 2-D は skimage.data(BSD/public)+ 合成、3-D は実データ源(Stanford/PDS 等)の DL URL。
• 演算子の来歴・参考文献 — この op 族の元になった研究/手法の出典。
• アルゴリズムの正典(著者・年)と用途は上記ファミリ使い方ガイドに記載。
• lightfield_depth — py -3.11 examples/lightfield_depth.py
images を入力に取れる)—
refocus)lf_refocus · lf_aperture_mask · lf_synthetic_aperture
*Provenance: lightfield.py — LIGHTFIELD operator registry. この per-op ノートは tools/opdocs.py md が自動生成(手編集しない)。*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.