bridge op• Data kinds: counts → image
• Call: fullseye.apply(img, "counts_to_img", 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):
▸ counts_to_img: knob a sweep (docs site)
Sweeping knob b (0.1 / 0.5 / 0.9, the other knob at its default):
▸ counts_to_img: knob b sweep (docs site)
Stages (the ops that come before → this op, left to right):
▸ counts_to_img: stages (docs site)
On other images (synthetic scene / photo / coins. Top row: inputs, bottom row: their outputs. Knobs at default):
▸ counts_to_img: other inputs (docs site)
> This operator's description has not been translated yet. The original text follows as it is.
非負整数の 1-D カウント列を棒グラフにして画像へ戻す。
`counts` を画像に落とせる op は 1 本も無かった(作る op は 13 本ある)。
既定を棒にしてあるのは、カウントが整数の度数だからで、折れ線で結ぶと
「間の値」が在るように見えてしまう。
• `a → 縦軸の余白(signal_to_img` と同じ式)。
• `b → 描き方。b < 1/3 で**折れ線**、< 2/3` で棒(既定)、それ以上で
点。`signal_to_img` と並びが違うのは、既定のノブ 0.5 でその型に
素直な描き方になるようにしているから —— カウントは棒が素直。
• 返り値: `(128, 128)` float64。
• gallery2d_bridge 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.
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 counts_to_img 0.50 0.50
▸ Load this pipeline · Load & run
• gallery2d_bridge — py -3.11 examples/gallery2d_bridge.py
image as input)identity · gaussian · mean_box · bilateral · unsharp · median · min_filter · max_filter
bridge)img_to_points · img_to_keypoints · img_to_signal · img_to_projection_profile · img_to_counts · img_to_matrix · img_to_video · img_to_volume
*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.