typed op• Data kinds: points → signal
• Call: fullseye.apply(img, "tb_landmark_asymmetry", a=0.5, b=0.5) (the 2-D model is one image plus two scalar knobs a,b∈[0,1])
*The figure is the actual output on a synthetic 128×128 input. Left: input, right: output. Point clouds are drawn as a top-down scatter (brightness = z), 1-D series as a line plot, volumes as the maximum-intensity projection along z, videos as the middle frame, complex images as magnitude; return values that are not pictures are shown as the values themselves.*
*Knob a does not change the output (measured: identical at 0.1 / 0.5 / 0.9).*
*Knob b does not change the output (measured: identical at 0.1 / 0.5 / 0.9).*
Stages (the ops that come before → this op, left to right):
▸ tb_landmark_asymmetry: stages (docs site)
On other images (synthetic scene / photo / coins. Top row: inputs, bottom row: their outputs. Knobs at default):
▸ tb_landmark_asymmetry: other inputs (docs site)
> This operator's description has not been translated yet. The original text follows as it is.
左右の対ごとの符号つき非対称量。→ `(M,)`。
各対について、片方を面で鏡映してもう片方と比べ、面の法線方向の差を返す。
符号は「右が外側なら正」(:func:mirror_plane_from_pairs が法線をその向きに
揃えている)。絶対値にまとめない —— 左右どちらが張り出しているかは
臨床でも検査でも意味が違う。
`pairs=None / plane=None はどちらも :func:mirror_plane_from_pairs`
と同じ既定(前半/後半の対、その対から出した正中面)。**面を省くと、面自体が
同じ対から決まる**ので「面を決めた材料で面からのずれを測る」ことになる ——
それでも左右差は測れる(中点は定義上どちらの側にも寄らない)が、
別の情報源から面が決まるなら渡したほうが強い。
2-D 進化レジストリへ橋渡しした shapestat の op `landmark_asymmetry。実装は同じで、呼び出し規約だけ op(v, a, b) に合わせてある。この op に調整点は無く、a も b` も使われない。
• 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 program below has been verified to run (same input as the figure). In Studio's help this block becomes buttons that load and run it on the spot.
img_to_points 0.50 0.50 tb_landmark_asymmetry 0.50 0.50
▸ Load this pipeline · Load & run
The examples below call the underlying ledger op landmark_asymmetry. This bridge op is the same implementation adapted to the fn(v, a, b) convention, so the behaviour carries over unchanged (only the call form differs).
• shapestat_landmark_tour — py -3.11 examples/shapestat_landmark_tour.py
signal as input)identity · tb_create_funct_1d_array · tb_smooth_funct_1d_gauss · tb_smooth_funct_1d_mean · tb_derivate_funct_1d · tb_integrate_funct_1d · tb_zero_crossings_funct_1d · tb_abs_funct_1d
typed)tb_points_to_voxel · tb_estimate_point_normals · tb_iss_keypoints · tb_project_points · tb_render_point_depth · tb_statistical_outlier_removal · tb_radius_outlier_removal · tb_voxel_grid_downsample
*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.