import { FrameBuffers } from './recon';
import type { FilmGrainParams } from './frame-header';
import type { SequenceHeader } from './sequence';
/** Apply display-only grain to a copy of the fully filtered/upscaled frame. */
export declare function applyFilmGrain(source: FrameBuffers, seq: SequenceHeader, data: FilmGrainParams, width: number, height: number): FrameBuffers;