typed op• Data kinds: lightfield → image
• Call: fullseye.apply(img, "tb_lf_epi", a=0.5, b=0.5) (the 2-D model is one image plus two scalar knobs a,b∈[0,1])
Epipolar-plane image — the slice whose line slope is the disparity.
An EPI is what makes a light field different from a pile of photographs: fix
one image row and one angular row, and every scene point traces a *straight
line* whose gradient `dx/du is exactly its slope s`. Occlusion becomes
one line crossing in front of another, which is why EPI methods handle it
better than window matching.
• `axis="u" (horizontal): fix v = view` (default: the centre row,
`(V-1)//2) and image row y = index; returns E[u, x]` of shape
`(U, W)`.
• `axis="v" (vertical): fix u = view and image column x = index`;
returns `E[v, y] of shape (V, H)`.
Raises `ValueError`: *lf* not a valid light field, unknown *axis*,
*index* outside the spatial extent, *view* outside the angular extent.
Typed bridge of the lightfield op `lf_epi into the 2-D evolution registry: the same implementation, called under the op(v, a, b) convention. This op has no tunable parameter; a and b` are unused.
• 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.
• (none yet)
image as input)identity · gaussian · mean_box · bilateral · unsharp · median · min_filter · max_filter
typed)tb_points_to_voxel · tb_estimate_point_normals · tb_iss_keypoints · tb_angle_3points · tb_project_points · tb_render_point_depth · tb_statistical_outlier_removal · tb_radius_outlier_removal
*Provenance: ops.py — 2D 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.