export interface LaplaceScores {
    mean: number;
    std: number;
}
/**
 * This function calculates the Laplace Scores for a given pixel array. This score can be used to get a rough estimate
 * of the blurriness of the picture.
 *
 * Picture A is less blurry than picture B if :
 *   calculateLaplaceScores(A).std > calculateLaplaceScores(B).std
 *
 * ***WARNING : To save up memory space, the pixels of the array are modified in place!! Before using this function, be
 * sure to make a copy of the array using the `array.slice()` method (you might have performance issues if you use any
 * other method for the duplication of the array).***
 */
export declare function calculateLaplaceScores(pixels: Uint8ClampedArray, width: number, height: number): LaplaceScores;