export declare class PageModeImageParameter { private _source; private _x; private _y; private _width; private _effectDiffusion; private _threshold; get source(): string; get x(): number; get y(): number; get width(): number; get effectDiffusion(): boolean; get threshold(): number; constructor(source: string, x: number, y: number, width: number); setEffectDiffusion(effectDiffusion: boolean): PageModeImageParameter; setThreshold(threshold: number): PageModeImageParameter; }