Guillem Hermida 749e810174 Effects: Black & White keeps faint colour noise in shadows faint (#1463) ...

Black & White offset each pixel's luminance by (hue weight - 0.5) times
its HSL saturation. HSL saturation is near 1 for any tinted near-black
pixel, so the code or two of colour noise in compressed footage's
shadows came out as bright and black blocks, and a 32-bpc overbright
such as (1.5, 0.5, 0.5) divided by zero and went black.

The gray is now the pixel's smallest channel plus its chroma (largest -
smallest channel) times the same hue-interpolated slider weight. Neutral
pixels keep their value, a pure hue becomes its slider's percentage
(Reds 40% turns pure red into 40% gray), noise moves the gray by no
more than its own size, and nothing divides. The CPU effect and the GPU
kernel change the same way.

2026-10-15 07:24:22 +02:00

..

src

Effects: Black & White keeps faint colour noise in shadows faint (#1463)

2026-10-15 07:24:22 +02:00

Cargo.toml

fix: contain GPU initialization and retire failed readbacks

2026-10-06 16:40:12 -05:00