transport_plan_1d — COLORTRANSPORT transport op

• Data kinds: signal × signal → transport_plan

• Call: import colortransport; colortransport.transport_plan_1d(u_values, v_values) (or opscolortransport.get("transport_plan_1d"))

Usage

The exact 1-D transport plan (north-west corner rule). Returns an `(n, m)` mass matrix.

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

行和が `1/n、列和が 1/m` になる ―― これは構成上厳密で、

数値誤差以外でずれることはない(テストで固定)。

Background guides (the physics and conventions behind this op)

• colorimetry — 測色と分光の知識 — 色は「分光 × 光源 × 観測者」でしか決まらない

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)

• color_transport — py -3.11 examples/color_transport.py

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

transport_cost · apply_transport

Same category (transport)

wasserstein_1d · sinkhorn · sinkhorn_distance · sinkhorn_divergence

*Provenance: colortransport.py — COLORTRANSPORT 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.