如何使用Java OpenCV库向图像添加文本？

import org.opencv.core.Core;
import org.opencv.core.Mat;
import org.opencv.core.Point;
import org.opencv.core.Scalar;
import org.opencv.highgui.HighGui;
import org.opencv.imgcodecs.Imgcodecs;
import org.opencv.imgproc.Imgproc;
public class AddingText {
   public static void main(String args[]) throws Exception {
      //Loading the OpenCV core library
      System.loadLibrary( Core.NATIVE_LIBRARY_NAME );
      //Reading the contents of the image
      String file ="D:\Images\shapes.jpg";
      Mat src = Imgcodecs.imread(file);
      //Preparing the arguments
      String text = "JavaFX 2D shapes";
      Point position = new Point(170, 280);
      Scalar color = new Scalar(0, 0, 255);
      int font = Imgproc.FONT_HERSHEY_SIMPLEX;
      int scale = 1;
      int thickness = 3;
      //Adding text to the image
      Imgproc.putText(src, text, position, font, scale, color, thickness);
      //Displaying the resultant Image
      HighGui.imshow("Contours operation", src);
      HighGui.waitKey();
   }
}