fullseye

color_lut — GFX2D post op

使い方

Build a 3-D colour LUT, (n, n, n, 3) indexed [r, g, b].

out = clip(lift + gain * in**gamma) per channel, then saturation is applied about the Rec. 709 luma. With all defaults this is the identity LUT, and because trilinear interpolation is exact for a function that is linear in each variable, :func:color_grade with the identity LUT is the identity to float64 rounding (measured maximum 3.3e-16 at size 17 and 2.2e-16 at size 2) — the property the suite uses to prove the interpolation itself is right before testing any grade.

参考(サンプルデータ・文献)

実行できる例(この op を実際に呼ぶ検証済みサンプル)

型が繋がる次の op(lut を入力に取れる)

color_grade

同カテゴリ(post)

bloom · vignette · chromatic_aberration · film_grain · color_grade · dither · palette_quantize


Provenance: gfx2d.py — GFX2D 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.