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"))
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*.
• 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。
• gray_window_level — py -3.11 examples_3d/gray_window_level.py
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
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)。*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.