train_class_knn — MV `classify` op

• Data kinds: matrix → table

• Call: import fullseye as fs; fs.ledger.train_class_knn(features, labels) (to call the implementation directly, import mvclass; mvclass.train_class_knn(features, labels); from the registry, opsmv.get("train_class_knn"))

• HALCON equivalent: train_class_knn (the HALCON reference is a useful guide to its meaning and parameters)

• GPU: none (CPU reference implementation only)

Usage

Build a k-NN classifier (the features are standardized and kept).

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

標準偏差が 0 の列は 1 で割る(その列は距離に効かない)。空の入力(features が 0 要素)は ValueError。

Args:

features: (N, D) の特徴。

labels: 長さ N のクラス(2 種類以上)。

Returns:

X、y、mu、sd を持つモデルの dict。

Detailed usage guide

• machine_vision_classics 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)

• machine_vision_tour — py -3.11 examples/machine_vision_tour.py

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

map_image · rectify_to_world_plane · change_radial_distortion_image · find_ncc_models · run_bg_esti · give_bg_esti · update_bg_esti · classify_class_gmm

Same category (`classify`)

train_class_gmm · classify_class_gmm · evaluate_class_gmm · classify_class_knn · train_class_mlp · classify_class_mlp · train_class_svm · classify_class_svm

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

train_class_knn — MV classify op