edges op• 数据种类:image → image
• 调用:fullseye.apply(img, "tf_phase_congruency", a=0.5, b=0.5)(2-D 的模型是一张图 + 两个标量旋钮 a,b∈[0,1])
phase_congruency:简化版的单演(monogenic)相位一致性特征图。
> 以下的详细说明为原文 —— 摘要与标题已翻译。
Multi-scale radial log-Gabor bandpass responses (even part) plus their Riesz
(monogenic odd) components are accumulated; phase congruency is
`|sum of the (even, odd1, odd2) energy vectors| / (sum of amplitudes)`.
Because both numerator and denominator scale linearly with image gain and the
log-Gabor filters carry no DC, the result is invariant to affine illumination
change. `a is a noise threshold (fraction of mean energy); b` scales the
base wavelength. Peaks at edges/lines where the phases align.
• 示例数据目录(下载 URL / 许可证) —— 2-D 用 skimage.data(BSD/公有领域)加合成图,3-D 给出真实数据源(Stanford/PDS 等)的下载 URL。
• 算子来历与参考文献 —— 该算子族所依据的研究/方法出处。
• 算法的正典(作者・年份)与用途见上面的族使用指南。
• gallery2d_edges — py -3.11 examples/gallery2d_edges.py
image 作为输入)identity · gaussian · mean_box · bilateral · unsharp · median · min_filter · max_filter
edges)sobel_mag · prewitt_mag · roberts_mag · dog · grad_dir · log · corner_response · sk_scharr
*Provenance: ops.py — 2D 算子登记表。本条目由 tools/opdocs.py md 自动生成(请勿手工编辑)。*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.