typed op• 数据种类:lightfield → image
• 调用:fullseye.apply(img, "tb_lf_center_view", 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])

*图为在 128×128 合成输入上实际运行的输出。左为输入,右为输出。点云以俯视散点显示(亮度 = z),一维序列为折线,体数据为沿 z 的最大值投影,视频为中间帧,复数图像为幅值;无法成像的返回值直接显示数值。*
*旋钮 a 不改变输出(实测: 0.1 / 0.5 / 0.9 相同)。*
*旋钮 b 不改变输出(实测: 0.1 / 0.5 / 0.9 相同)。*
阶段(前置算子 → 本算子,从左到右):
▸ tb_lf_center_view: stages (docs site)
换别的图像(合成场景 / 照片 / 硬币。上排为输入,下排为对应输出。旋钮取默认):
▸ tb_lf_center_view: other inputs (docs site)
中心视点——全光相机同时给出的普通二维图像。
> 以下的详细说明为原文 —— 摘要与标题已翻译。
For odd `V and U` the centre is a single view and both modes return it
exactly. For an even axis the centre falls *between* two views, and this
operator does not pretend otherwise:
• `mode="average"` (default) returns the mean of the 2 (or 4) views
straddling the centre — the correctly-centred estimate for a Lambertian
scene, at the cost of a slight blur proportional to the disparity.
• `mode="nearest" returns the single view at floor((N-1)/2)`, which
is sharp but sits half an angular step off centre; every disparity
measured against it carries that half-step bias.
Returns a `(H, W)` 2-D image.
Raises `ValueError`: *lf* not a valid light field, unknown *mode*.
Typed bridge of the lightfield op `lf_center_view into the 2-D evolution registry: the same implementation, called under the op(v, a, b) convention. This op has no tunable parameter; a and b` are unused.
• 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。
下面的程序已确认可以运行(与图相同的输入)。在 Studio 帮助中,此块会变成按钮,可当场加载并运行。
img_to_lightfield 0.50 0.50 tb_lf_center_view 0.50 0.50
▸ Load this pipeline · Load & run
下面的示例调用的是底层账本算子 lf_center_view。此桥接算子只是把同一实现适配为 fn(v, a, b) 约定,行为完全相同(只是调用形式不同)。
• lightfield_depth — py -3.11 examples/lightfield_depth.py
image 作为输入)identity · gaussian · mean_box · bilateral · unsharp · median · min_filter · max_filter
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 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.