fullseye

lf_center_view — LIGHTFIELD views op

• データ種: lightfield → image2d
• 呼び出し: import fullseye as fs; fs.ledger.lf_center_view(lf, mode='average') (実装を直接呼ぶなら import lightfield; lightfield.lf_center_view(lf, mode='average')、台帳から引くなら opslightfield.get("lf_center_view"))

使い方

The centre viewpoint — the ordinary 2-D image a plenoptic camera also gives.

For odd V and U the centre is a single view and both modes return it exactly. For an even axis the centre falls between two views, and this operator does not pretend otherwise:

• mode="average" (default) returns the mean of the 2 (or 4) views straddling the centre — the correctly-centred estimate for a Lambertian scene, at the cost of a slight blur proportional to the disparity.
• mode="nearest" returns the single view at floor((N-1)/2), which is sharp but sits half an angular step off centre; every disparity measured against it carries that half-step bias.

Returns a (H, W) 2-D image.

Raises ValueError: lf not a valid light field, unknown mode.

詳しい使い方ガイド

• lightfield_depth ファミリ ガイド

参考(サンプルデータ・文献)

• 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。

実行できる例(この op を実際に呼ぶ検証済みサンプル)

• lightfield_depth — py -3.11 examples/lightfield_depth.py

型が繋がる次の op(image2d を入力に取れる)

lf_from_mla · lf_disparity_to_depth · lf_all_in_focus

同カテゴリ(views)

lf_subaperture · lf_views · lf_epi

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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.

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