morphology op• Data kinds: voxel → voxel
• Call: import fullseye as fs; fs.ledger.morph_close3d(vol, r=1, device='cpu', se='cube') (to call the implementation directly, import match3d; match3d.morph_close3d(vol, r=1, device='cpu', se='cube'); from the registry, ops3d.get("morph_close3d"))
• GPU: this op has a GPU path (device="cuda")
3-D closing = dilation → erosion. Fills the dark structures (gaps and cavities) smaller than the structuring element.
> The detailed description below is the original text — the summary and the headings are translated.
`morph_erode3d(morph_dilate3d(vol, r, ...), r, ...)。出力は入力以上(close >= vol`)で、
SE(一辺 `2r+1` の cube か半径 r の ball)より小さい暗い穴・亀裂・面の隙間が周囲の
明るさで埋まり、大きな暗領域は残る(等冪)。境界外は dilation で −∞、erosion で +∞ 扱い
なので端が勝手に埋まることはない。`se は "cube"/"ball"(他は ValueError)、device` は
cube+torch のときだけ有効。返り値 `(D,H,W)` float32 numpy。
用途: `close − vol が morph_blackhat3d`(小さな暗構造の抽出)。点群 splat の表面の
穴埋め、`signed_distance_field` 前の占有の穴埋め。
• 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.
• morphology_3d — py -3.11 examples_3d/morphology_3d.py
voxel as input)voxel_to_mips · voxel_to_mesh · signed_distance_field · to_points · sobel3d · hessian3d · curvature_maps · edt_jfa
morphology)morph_dilate3d · morph_erode3d · morph_open3d · morph_gradient3d · morph_tophat3d · morph_blackhat3d
*Provenance: match3d.py — 3D 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.