typed oprgbimage → rgbimagefullseye.apply(img, "tb_specular_free_transform", 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)
図は合成の入力 128×128 で実際に走らせた出力。左が入力、右が出力。点群は上から見た散布(明るさ = z)、1-D 列は折れ線、体積は z 方向の最大値投影、動画は中央フレーム、複素画像は振幅、絵にならない返り値は値そのもの。
つまみ a は出力を変えない(実測: 0.1 / 0.5 / 0.9 で同一)。
つまみ b は出力を変えない(実測: 0.1 / 0.5 / 0.9 で同一)。
段階(前置きの op → この op。左から順):

別の画像でも(合成シーン / 写真 / 硬貨。上段が入力、下段がその出力。つまみは既定):

Project out the illuminant direction: the part of the image a highlight cannot touch. → (H, W, 3).
I - (I.G) G for the unit illuminant colour G. Under the dichromatic
model the interface term is m_s * G, so it lies entirely in the removed
direction and the result is invariant to any specular term whatsoever —
exactly, for any lobe shape, any strength, any spatial pattern. That is the
specular-invariant subspace of Mallick et al. (2005); this operator is the
projection itself, with no rotation into named channels, so it stays in RGB
and composes with the rest of the family.
Use it when the shape of the specular lobe is unknown or the surface is
textured — feature matching, edge detection and correlation all work in this
subspace without any of the assumptions
:func:specular_diffuse_split needs.
This is a projection, not a picture. The result loses one of three
degrees of freedom (its component along G is exactly zero everywhere)
and, for an image with negative values after black-level subtraction, keeps
them. It is not a displayable “highlight-removed photo” and does not claim
to be; for that, use :func:specular_diffuse_split.
Raises ValueError: image_rgb is not a valid (H, W, 3) linear
RGB image (see :func:specular_diffuse_split); illuminant_rgb is not a
non-zero 3-vector.
Typed bridge of the specular op specular_free_transform 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.
下のプログラムは実際に走ることを確かめてある(図と同じ入力)。Studio のヘルプではこのブロックがボタンになり、その場で読み込んで実行できる。
img_to_rgb 0.50 0.50
tb_specular_free_transform 0.50 0.50
次の例は元の台帳 op specular_free_transform を呼ぶもの。この橋渡し op は同じ実装を fn(v, a, b) 規約に合わせただけなので、挙動はそのまま当てはまる(呼び出し形だけ違う)。
py -3.11 examples/poc_leaf_disease_area.pypy -3.11 examples/specular_photometric.pyrgbimage を入力に取れる)identity · tb_wetness · tb_sensor_capture · tb_viewport_from_equirect · tb_specular_diffuse_split · tb_specular_coefficient_map · tb_rgb_to_quaternion
typed)tb_points_to_voxel · tb_estimate_point_normals · tb_iss_keypoints · tb_project_points · tb_render_point_depth · tb_points_render · tb_statistical_outlier_removal · tb_radius_outlier_removal
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.