/**
 * Statistical Region Merging
 */
export default class StatisticalRegionMerging {
    /**
     * @param {number} t Threshold
     */
    constructor(t: number);
    _t: number;
    _d(a: any, b: any): number;
    /**
     * Fit model.
     * @param {Array<Array<Array<number>>>} x Training data
     * @returns {Array<Array<Array<number>>>} Predicted values
     */
    predict(x: Array<Array<Array<number>>>): Array<Array<Array<number>>>;
    _values: any[];
}