for (i = n; i < height - n; i++) {
    for (var j = n; j < width - n; j++) {
        var max_cost = 0;
        var final_disparity = d_min;
        for (var d = d_min; d <= d_max; d++) {
            if (j + n + d >= width) {
                break;
            }
            var sum1 = 0, sum2 = 0, sum3 = 0;
            var cost = 0;
            for (var x = i - n; x <= i + n; x++) {
                for (var y = j - n; y <= j + n; y++) {
                    sum1 += (left[x][y + d] * right[x][y]);
                    sum2 += Math.pow(right[x][y], 2);
                    sum3 += Math.pow(left[x][y + d], 2);
                }
            }
            cost = sum1 / Math.sqrt(sum2 * sum3);
            if (cost >= max_cost) {
                max_cost = cost;
                final_disparity = d;
            }
        }
        output[i][j] = final_disparity * 3;
    }
}
                    

var n = parseInt((patch_size - 1) / 2);
for (var i = n; i < height - n; i++) {
    for (var j = n; j < width - n; j++) {
        var min_sum = 9999;
        var final_disparity = d_min;
        for (var d = d_min; d <= d_max; d++) {
            if (j - n - d < 0) {
                break;
            }
            var SUM = 0.0;
            for (var u = i - n; u <= i + n; u++) {
                for (var v = j - n; v <= j + n; v++) {
                    var temp = Math.pow((left[u][v] - right[u][v - d]), 2);
                    SUM += temp;
                }
            }
            if (SUM <= min_sum) {
                min_sum = SUM;
                final_disparity = d;
            }
        }
        output[i][j] = final_disparity * 3.0;
    }
}
                    

var n = parseInt((patch_size - 1) / 2);
for (var i = n; i < height - n; i++) {
    for (var j = n; j < width - n; j++) {
        var min_cost = 99999;
        var final_disparity = d_min;
        for (var d = d_min; d <= d_max; d++) {
            if (j + n + d >= width) {
                break;
            }
            var cost;
            var sum1 = 0.0, sum2 = 0.0;
            for (var h = i - n; h <= i + n; h++) {
                for (var w = j - n; w <= j + n; w++) {
                    // 忽略中心点？
                    var delta_g = Math.sqrt(Math.pow((h - i), 2) + Math.pow((w - j), 2));
                    var delta_c_L = getLabDistance(left[h][w + d], left[i][j + d]);
                    var delta_c_R = getLabDistance(right[h][w], right[i][j]);
                    var wL = Math.exp((-delta_g) / 7 - (delta_c_L) / 7); // γp = 7 γc = 7
                    var wR = Math.exp((-delta_g) / 7 - (delta_c_R) / 7); // γp = 7 γc = 7
                    var e = Math.abs(left[h][w + d][0] - right[h][w][0])
                        + Math.abs(left[h][w + d][1] - right[h][w][1])
                        + Math.abs(left[h][w + d][2] - right[h][w][2]);
                    sum1 += wL * wR * e;
                    sum2 += wL * wR;
                }
            }
            cost = parseFloat(sum1 / sum2);
            if (cost < min_cost) {
                min_cost = cost;
                final_disparity = d;
            }
        }
        output[i][j] = final_disparity * 3;
    }
}