lf_stats — LIGHTFIELD decode op

• Data kinds: lightfield → table

• Call: import fullseye as fs; fs.ledger.lf_stats(lf) (to call the implementation directly, import lightfield; lightfield.lf_stats(lf); from the registry, opslightfield.get("lf_stats"))

Usage

Describe a light field: shape, angular centre, and the slope range it can carry.

Returns a dict — angular_v / angular_u · height / width · n_views = V*U · center_v / center_u ((N-1)/2, a half-integer when the axis is even, so center_is_a_view says whether a single view actually sits at the centre) · min / max / mean of the samples · max_slope_px, the largest |s| for which the extreme view is still displaced by less than half the frame, i.e. the honest limit of what this array can measure (min(H, W) / max(V-1, U-1, 1); reported as float(min(H, W)) when the array has a single view in both directions, since then no shift happens at all) · baseline_views, the angular span (V-1, U-1) that any disparity is measured over.

Raises ValueError: *lf* is not a finite 4-D array within the shape and element caps.

Detailed usage guide

• lightfield_depth 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)

• lightfield_depth — py -3.11 examples/lightfield_depth.py

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

—

Same category (decode)

lf_from_mla · lf_to_mla


*Provenance: lightfield.py — LIGHTFIELD 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.