import type { EasingType } from '@visactor/vrender-core';
import { AStageAnimate } from '../custom-animate';
export interface BlurConfig {
    blurRadius: number;
    useOptimizedBlur: boolean;
}
export declare class GaussianBlur extends AStageAnimate<any> {
    private blurConfig;
    constructor(from: null, to: null, duration: number, easing: EasingType, params: any);
    private applyCSSBlur;
    private applyDownsampleBlur;
    protected afterStageRender(stage: any, canvas: HTMLCanvasElement): HTMLCanvasElement | void | null | false;
}