import { fabric } from "fabric";
import type { UseBlurReturn } from "../types";
interface UseBlurOptions {
    /** Blur intensity in pixels (default: 20) */
    blurIntensity?: number;
    /** Throttle delay for blur updates in ms (default: 50) */
    throttleMs?: number;
    /** Callback when blur is added */
    onBlurAdd?: (rect: fabric.Rect) => void;
    /** Callback when blur is removed */
    onBlurRemove?: (id: string) => void;
}
/**
 * Hook for managing blur regions on the canvas
 *
 * @example
 * ```tsx
 * const blur = useBlur(canvasRef, imageRef, {
 *   blurIntensity: 20,
 *   onBlurAdd: (rect) => saveState(),
 * });
 *
 * // Add blur region
 * blur.addBlur();
 *
 * // Remove specific blur
 * blur.removeBlur('blur-123');
 *
 * // Clear all blur regions
 * blur.clearAllBlur();
 * ```
 */
export declare function useBlur(canvasRef: React.MutableRefObject<fabric.Canvas | null>, imageRef: React.MutableRefObject<fabric.Image | null>, options?: UseBlurOptions): UseBlurReturn;
export default useBlur;