shape_perturb — SHAPESTAT `synth` op

• Data kinds: points → points

• Call: import shapestats; shapestats.shape_perturb(shape, amplitude: 'float' = 0.05, mode: 'str' = 'bulge', center=(1.0, 0.0, 0.0), sigma: 'float' = 0.4, seed: 'int' = 0) (or opsshapestat.get("shape_perturb"))

Usage

> This operator's description has not been translated yet. The original text follows as it is.

形に既知の変形を 1 つ入れる。→ `(N, 3)`。

`mode`:

• `"bulge"` —— *center* のまわりをガウス重みで外向きに膨らませる。

片側だけに入れれば左右非対称性の真値になる。

• `"shift"` —— *center* 方向へ一様に平行移動(Procrustes が消す成分)。

• `"scale" —— 一様拡大(scaling=True` の Procrustes が消す成分)。

• `"noise"` —— 等方ガウス雑音(どの手法でも消えない床)。

「Procrustes が消してくれる変形」と「消してはいけない変形」を分けて試せる

ように 4 つ置いてある。位置合わせの検算はこの区別が要る。

Detailed usage guide

• shape_statistics 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)

• (none yet)

Ops the type connects to (they accept `points` as input)

procrustes_fit · procrustes_align · procrustes_distance · shape_project · shape_mahalanobis · mirror_plane_from_pairs · landmark_asymmetry · signed_surface_distance

Same category (`synth`)

shape_synth_family

*Provenance: shapestats.py — SHAPESTAT operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

shape_perturb — SHAPESTAT synth op