vol_window_level — 3D `gray` op

• データ種: voxel → voxel

• 呼び出し: import fullseye as fs; fs.ledger.vol_window_level(vol, center, width, out_range=(0.0, 1.0)) (実装を直接呼ぶなら import volgray; volgray.vol_window_level(vol, center, width, out_range=(0.0, 1.0))、台帳から引くなら ops3d.get("vol_window_level"))

使い方

CT window/level (HU windowing) — the radiologist's daily linear remap.

Maps the intensity window [center - width/2, center + width/2] linearly onto *out_range* (lo, hi); voxels below the window saturate at lo, voxels above at hi (clipped, by design — that is what a CT window *does*). A bone window and a soft-tissue window on the same Hounsfield volume make entirely different structures visible. HALCON analogue:

scale_image (the linear part), plus the clip.

Parameters

vol : array_like, shape (D, H, W)

Input volume (coerced to float64; NaN/Inf rejected). Hounsfield units

or any other physical scale — *center* / *width* live on the same scale.

center, width : float

Window centre and full width. width must be > 0 (fail-closed).

out_range : (float, float)

Output (lo, hi) with lo < hi. Default (0.0, 1.0).

Returns

ndarray, shape (D, H, W), float64

The windowed volume, everywhere inside [lo, hi].

Raises

ValueError

Non-3-D / non-finite input, width <= 0, or a malformed *out_range*.

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。

実行できる例(この op を実際に呼ぶ検証済みサンプル)

• gray_window_level — py -3.11 examples_3d/gray_window_level.py

型が繋がる次の op(`voxel` を入力に取れる)

voxel_to_mips · voxel_to_mesh · signed_distance_field · to_points · sobel3d · hessian3d · curvature_maps · edt_jfa

同カテゴリ(`gray`)

vol_equalize · vol_gamma · vol_stretch

*Provenance: volgray.py — 3D 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)。*

vol_window_level — 3D gray op

使い方