typed op• 資料種類:rgbimage → qimage
• 呼叫:fullseye.apply(img, "tb_rgb_to_quaternion", a=0.5, b=0.5)(2-D 的模型是一張圖 + 兩個純量旋鈕 a,b∈[0,1])

*圖為在 128×128 合成輸入上實際執行的輸出。左為輸入,右為輸出。點雲以俯視散點顯示(亮度 = z),一維序列為折線,體資料為沿 z 的最大值投影,影片為中間影格,複數影像為振幅;無法成像的回傳值直接顯示數值。*
*旋鈕 a 不改變輸出(實測: 0.1 / 0.5 / 0.9 相同)。*
*旋鈕 b 不改變輸出(實測: 0.1 / 0.5 / 0.9 相同)。*
階段(前置運算子 → 本運算子,由左至右):
▸ tb_rgb_to_quaternion: stages (docs site)
換別的影像(合成場景 / 照片 / 硬幣。上排為輸入,下排為對應輸出。旋鈕取預設):
▸ tb_rgb_to_quaternion: other inputs (docs site)
將彩色影像嵌入為純四元數 `0 + R i + G j + B k`。→ (H, W, 4)。
> 以下的詳細說明為原文 —— 摘要與標題已翻譯。
Sangwine's 1996 encoding, and the entry point of the whole colour half of
this module: once a pixel is a quaternion, `q x conj(q)` rotates its colour
and :func:qft2 transforms the three channels as one hypercomplex signal
instead of three unrelated real ones.
The scalar (`w`) component is set to exactly zero — a *pure* quaternion —
because that is what makes the conjugation a 3-D rotation. Values are not
clamped: linear RGB after black-level subtraction legitimately goes negative,
and clipping it would change the colour direction, which is the quantity
every operator downstream reads.
Raises `ValueError: *image_rgb* is not a finite (H, W, 3)` numeric
array, is complex / bool / string-typed / masked, or exceeds
:data:MAX_PIXELS.
Typed bridge of the quat op `rgb_to_quaternion 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.
• 範例資料目錄(下載 URL / 授權) —— 2-D 用 skimage.data(BSD/公有領域)加合成圖,3-D 給出真實資料源(Stanford/PDS 等)的下載 URL。
• 運算子來歷與參考文獻 —— 該運算子族所依據的研究/方法出處。
下面的程式已確認可以執行(與圖相同的輸入)。在 Studio 說明中,此區塊會變成按鈕,可當場載入並執行。
img_to_rgb 0.50 0.50 tb_rgb_to_quaternion 0.50 0.50
▸ Load this pipeline · Load & run
下面的範例呼叫的是底層帳本運算子 rgb_to_quaternion。此橋接運算子只是把同一實作適配為 fn(v, a, b) 慣例,行為完全相同(只是呼叫形式不同)。
• quaternion_monogenic — py -3.11 examples/quaternion_monogenic.py
qimage 作為輸入)identity · tb_quaternion_to_rgb · tb_quat_norm · tb_quat_conjugate_image · tb_quat_normalize_image · tb_monogenic_amplitude · tb_monogenic_phase · tb_monogenic_orientation
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 運算子登記表。本條目由 tools/opdocs.py md 自動產生(請勿手動編輯)。*
© 2026 Kazufumi Furuse — Fullseye operator documentation. Licensed under Apache-2.0.