typed op• Data kinds: counts → counts
• Call: fullseye.apply(img, "tb_counts_to_countrate", 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.*
Sweeping knob a (0.1 / 0.5 / 0.9, the other knob at its default):
▸ tb_counts_to_countrate: knob a sweep (docs site)
*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_counts_to_countrate: stages (docs site)
On other images (synthetic scene / photo / coins. Top row: inputs, bottom row: their outputs. Knobs at default):
▸ tb_counts_to_countrate: other inputs (docs site)
Counts -> count rate `[Hz]. The inverse of :func:countrate_to_counts`.
> The detailed description below is the original text — the summary and the headings are translated.
Args:
counts: (N,) の非負計数。
gate_s: 積算窓 [s]。> 0。
Returns:
(N,) float64 の非負レート [Hz]。
Raises:
ValueError: 負の計数 / gate_s <= 0 / 形状不正 / 非有限。
2-D 進化レジストリへ橋渡しした reprconv の op `counts_to_countrate。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。a が gate_s(既定 0.001)を振る。b` は未使用。
• 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_counts 0.50 0.50 tb_counts_to_countrate 0.50 0.50
▸ Load this pipeline · Load & run
The examples below call the underlying ledger op counts_to_countrate. 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).
• representation_roundtrip — py -3.11 examples/representation_roundtrip.py
counts as input)identity · tb_spad_deadtime_apply · tb_spad_deadtime_correct · tb_tcspc_coates_correct · tb_tcspc_irf_convolve · tb_tcspc_background_subtract · tb_dtof_depth · tb_countrate_to_counts
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.