isp op• 数据种类:rgb → vector
• 调用: import fullseye as fs; fs.ledger.awb_gains(rgb, method='gray_world', percentile=99.0)(要直接调用实现,import gfx2d; gfx2d.awb_gains(rgb, method='gray_world', percentile=99.0);从台账取用则 opsgfx2d.get("awb_gains"))
估计白平衡增益 (g_R, g_G, g_B)(gray-world / white-patch,g_G = 1)。
> 以下的详细说明为原文 —— 摘要与标题已翻译。
`method="gray_world": the scene averages to grey, so `g_c = mean_G /
mean_c` (Buchsbaum, 1980). method="white_patch"`: the brightest
surfaces are white, so `g_c = P_G / P_c with P` the *percentile*
(default 99, i.e. not the single hottest pixel) of each channel. Both are
closed forms; neither is right for every scene (a red wall breaks
gray-world, a coloured light breaks white-patch) and the docstring says so
rather than picking one silently. Apply with :func:rgb_apply_gains or,
on the mosaic, :func:raw_apply_gains.
Ground truth: after applying gray-world gains the three channel means are
equal to 1e-12; after white-patch gains the three percentiles are equal.
Raises `ValueError`: unknown *method*, a channel whose statistic is 0
(no gain can be defined), or a *percentile* outside `(0, 100]`.
• 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。
• raw_to_display_isp — py -3.11 examples/raw_to_display_isp.py
vector 作为输入)rgb_apply_gains · raw_apply_gains
isp)raw_black_level · raw_dead_pixel_mask · raw_dead_pixel_correct · lens_shading_gain · lens_shading_correct · rgb_apply_gains · raw_apply_gains · raw_demosaic_bilinear
*Provenance: gfx2d.py — GFX2D 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.