Erode1

 import javafx.application.Application;
 import javafx.scene.Group;
 import javafx.scene.Scene; 
 import javafx.scene.image.Image;
 //import javafx.scene.image.ImageView;
 import javafx.scene.paint.Color;
 import javafx.stage.Stage;
// import javax.imageio.*;

 import java.util.List;
 import java.awt.image.*;
 import java.io.*;

public class Erode1 extends Application {
 
     @Override public void start(Stage stage) {
	int mag = 3;
         // load the image
	String file1 = "char.png";
	List<String> args = getParameters().getRaw();
	String filename =  (args.size()>0)? args.get(0): file1;

	 BufferedImage img = showImage.readImage(filename);

	 showImage show1 = new showImage(ImageOp.replicate(img,mag),filename);
	 show1.setStage(stage);
	 stage.setX(100);
	 stage.setY(100);

	double w = stage.getWidth();
	double h = stage.getHeight();

	//int mask[][] = {{0,1,1,1,0},{1,1,1,1,1},{1,1,1,1,1},{1,1,1,1,1},{0,1,1,1,0}};
	int mask[][] = {{0,1,0},{1,1,1},{0,1,0}};
	bwOps c = new bwOps(mask);
	c.showMatrix(mask,"structuring element");
	BufferedImage outp = c.doErode(img);
	String cmt = "eroded";

	showImage show2 = new showImage(ImageOp.replicate(outp,mag),cmt);
	showImage.writeImage(outp,"erode1","png");
	 Stage stage2 = new Stage();
	 show2.setStage(stage2);
	 stage2.setX(140+stage.getWidth());
	 stage2.setY(100);		
    }

     public static void main(String[] args) {
         Application.launch(args);
     }
}