What does core.normalize do in opencv java in example below. What different thing will occurs if I use it and dont use it

// Create the result matrix te.cols) + 1; te. rows ) + 1; result_cols, CvType.CV_32F); int result_cols - image.cols() - templa int result-rows = image, rows () -templa Mat result new Mat (result_rows, // Do the Matching and Normalize Imgproc.matchTemplate(image, template, result, match_method); Core.normalize(result, result, 0, 255, Core.NORM_MINMAX, -1, new Mat())