warp_piecewise_affine — SHAPE2D `morph` op

• Data kinds: image2d × pairs × pairs → image2d

• Call: import imagemorph; imagemorph.warp_piecewise_affine(img, src_pts, dst_pts, order=1) (or opsshape2d.get("warp_piecewise_affine"))

Usage

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

img の src_pts にある内容を dst_pts へ動かす区分アフィンワープ。

dst_pts を Delaunay 三角形分割し、各出力画素が属す三角形の重心座標を求め、

同じ重心座標で src_pts 側の対応三角形へ写して逆写像サンプルする。凸包の外側

(三角形に属さない画素)は恒等(元位置)でサンプルするため、四隅を対応点に含める

(:func:add_frame_corners)と穴なく画像全体を覆える。

引数:

img: (H,W) か (H,W,C)、[0,1]。

src_pts, dst_pts: (K,2) の (x,y)。同数・同順の対応点。

order: 補間次数(1=バイリニア)。

返り値: img と同 shape・[0,1] の float64。

Detailed usage guide

• shape_description_2d 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 `image2d` as input)

warp_tps_image · blend · morph · morph_sequence

Same category (`morph`)

add_frame_corners · warp_tps_image · blend · morph · morph_sequence

*Provenance: imagemorph.py — SHAPE2D operator registry. This per-op note is generated by tools/opdocs.py md (do not hand-edit).*

warp_piecewise_affine — SHAPE2D morph op