Filmhwa - -hwa.min-s Filter Link

This is where the - filter becomes essential.

In color grading (and in creative work), a good filter isn't what you add—it's what you dare to take away. filmhwa - -hwa.min-s filter

We present FilmHwa, a compact image-denoising filter inspired by film-grain aesthetics and bilateral-style edge preservation. The -h/min-s variant (pronounced “h minus min s”) emphasizes contrast-harmonic smoothing while preserving high-frequency detail for scanned film and low-light digital frames. We detail algorithm, implementation, complexity, parameter choices, and sample results. This is where the - filter becomes essential

Combining a digital filter with ~70% dust intensity and ~50% vintage light streaks. filmhwa - -hwa.min-s filter