import type { ImageDataLike } from "./ImageDataLike.js";
/**
 * Blurs image data with given blur radius. Alpha channel is also blurred.
 *
 * @param imageData - The image data object obtained from a canvas.
 * @param radius    - The blur radius (0-254)
 */
export declare function blurImageDataRGBA(imageData: ImageDataLike, radius: number): void;