vol_reg_dilate — 2D 3d op

Data kinds: volumevolume

Call: fullseye.apply(img, "vol_reg_dilate", a=0.5, b=0.5) (the 2-D model is one image plus two scalar knobs a,b∈[0,1])

Usage

Dilation of a 3D binary region (dilation of a region volume). No corresponding HALCON op is specified.

> The detailed description below is the original text — the summary and the headings are translated.

`a が反復回数を 1〜4max(1, 1+int(3a)))に振る。b は未使用。構造要素は 6 近傍(generate_binary_structure(3,1)、十字形)。反復回数を明示的に 1 以上へクランプしているのは、scipy が iterations<1 を「収束するまで反復」と解釈し、a` が小さい側で全充填・全消去に発散するのを防ぐため(敵対的レビューで見つかった不具合の修正、D3)。

Detailed usage guide

gallery2d_physics_alife_3d family guide

References (sample data, literature)

• 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.

• The canonical algorithm (author, year) and its uses are named in the family usage guide above.

Runnable examples (verified samples that actually call this op)

gallery2d_physics_alife_3dpy -3.11 examples/gallery2d_physics_alife_3d.py

Ops the type connects to (they accept volume as input)

identity · vol_gaussian · vol_median · vol_erode · vol_dilate · vol_threshold · vol_reg_erode · vol_dilation_ball

Same category (3d)

vol_gaussian · vol_median · vol_erode · vol_dilate · vol_threshold · vol_reg_erode · vol_dilation_ball · vol_erosion_ball


*Provenance: ops.py — 2D 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.