field op• Data kinds: flow2d → image2d
• Call: import pivops; pivops.piv_flow_magnitude(flow) (or opspiv.get("piv_flow_magnitude"))
> This operator's description has not been translated yet. The original text follows as it is.
`sqrt(dy^2 + dx^2)`。向きを捨てる一方向の変換。
`reprconv.flow_magnitude の 2 次元版。あちらは (3, D, H, W)` 専用で、
ここへ渡すと形で弾かれる(型を分けてある理由がこれ)。
• piv_displacement family guide
• 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.
• (none yet)
image2d as input)piv_cross_correlate · piv_multipass · piv_deform_pass · strain_from_displacement · correlation_quality · speckle_quality
field)piv_vorticity · piv_divergence · piv_to_velocity · piv_velocity_gradient · piv_q_criterion · piv_swirling_strength · piv_strain_rate
*Provenance: pivops.py — PIV 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.