filtering op• データ種: image → image
• 呼び出し: fullseye.apply(img, "tf_gradient_domain_reintegrate", a=0.5, b=0.5) (2-D は 1 画像 + 2 スカラつまみ a,b∈[0,1] のモデル)
gradient_domain_reintegrate: threshold the gradient, then Poisson-reintegrate.
The forward gradient (gx, gy) is computed, gradient vectors whose magnitude is
below a threshold `t = a * max|grad|` are zeroed (small texture/noise
gradients discarded, strong edges kept), and the image is reconstructed from
the modified gradient field by solving the Poisson equation
`lap f = div(g) with an FFT solver. With a == 0` every gradient is kept
and the original image is recovered (up to a constant); with `a > 0` flat
regions are flattened while edges survive -- an edge-preserving gradient-domain
filter. `b` is unused. Output rescaled to [0,1].
• gallery2d_smoothing_rank ファミリ ガイド
• サンプルデータ カタログ(DL URL / ライセンス) — 2-D は skimage.data(BSD/public)+ 合成、3-D は実データ源(Stanford/PDS 等)の DL URL。
• 演算子の来歴・参考文献 — この op 族の元になった研究/手法の出典。
• アルゴリズムの正典(著者・年)と用途は上記ファミリ使い方ガイドに記載。
• gallery2d_smoothing_rank — py -3.11 examples/gallery2d_smoothing_rank.py
image を入力に取れる)identity · gaussian · mean_box · bilateral · unsharp · median · min_filter · max_filter
filtering)—
*Provenance: ops.py — 2D operator registry. この per-op ノートは tools/opdocs.py md が自動生成(手編集しない)。*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.