/**
 * Sobel edge-detection filter
 */
export class CellFilterSobel extends CellFilter {
    /**
     *
     * @param {CellFilter} source
     * @returns {CellFilterSobel}
     */
    static from(source: CellFilter): CellFilterSobel;
    /**
     *
     * @type {CellFilter}
     */
    source: CellFilter;
    initialize(grid: any, seed: any): void;
    execute(grid: any, x: any, y: any, rotation: any): number;
}
import { CellFilter } from "../../CellFilter.js";
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