fullseye

brightness_contrast — GFX2D isp op

使い方

out = (rgb - 0.5) * contrast + 0.5 + brightness, clipped to [0, 1].

Contrast pivots about mid-grey so contrast=2 doubles the distance from 0.5 and leaves 0.5 alone; brightness is an additive offset. Ground truth: (0, 1) is the exact identity; mid-grey is invariant to any contrast. Raises ValueError: brightness outside [-1, 1] or contrast < 0.

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(rgb を入力に取れる)

srgb_to_linear · linear_to_srgb · blend_mode · light_mask · normal_map_decode · bloom · vignette · chromatic_aberration

同カテゴリ(isp)

raw_black_level · raw_dead_pixel_mask · raw_dead_pixel_correct · lens_shading_gain · lens_shading_correct · awb_gains · rgb_apply_gains · raw_apply_gains


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.