/**
 * 图片改变尺寸，返回 Blob
 * @param imageSrc
 * @param w
 * @param h
 * @param options
 * @returns
 */
export declare function imageResize(imageSrc: ImageData | Blob, w: number, h: number, options?: {
    format?: string;
    quality?: number;
    srcCanvas?: HTMLCanvasElement;
    outCanvas?: HTMLCanvasElement;
    sx?: number;
    sy?: number;
    sw?: number;
    sh?: number;
    method?: "pixelated" | "low" | "medium" | "high";
    returnCanvas?: boolean;
}): Promise<Blob>;
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