showSmImage.java

 import javafx.application.Application;
 import javafx.geometry.Rectangle2D;
 import javafx.scene.Group;
 import javafx.scene.Scene; 
 import javafx.scene.image.Image;
 import javafx.scene.image.ImageView;
 import javafx.scene.layout.HBox;
 import javafx.scene.paint.Color;
 import javafx.stage.Stage;
 import javax.imageio.*;

 import javafx.scene.image.WritableImage;
 import javafx.scene.image.ImageView;
 import javafx.embed.swing.SwingFXUtils;

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

 public class showSmImage extends Application {
 
     @Override public void start(Stage stage) {
         // load the image
	 String file1 = "test2.png";
	 List<String> args = getParameters().getRaw();
	 String filename =  (args.size()>0)? args.get(0): file1;
         BufferedImage img = ImageOp.readImage(filename);
	 int mag = args.size()>1? Integer.parseInt(args.get(1)): 32;

	 BufferedImage out = ImageOp.replicate(img,mag);

	int wd = out.getWidth();
	int ht = out.getHeight();

	 ImageView iv = getView(out); 
 
         Group root = new Group();
	 root.getChildren().add(iv);
         Scene scene = new Scene(root);
         scene.setFill(Color.BLACK);
 
         stage.setTitle("Small");
         stage.setWidth(wd+20);
         stage.setHeight(ht+20);
         stage.setScene(scene); 
         stage.sizeToScene(); 
         stage.show(); 
     }


 	public ImageView getView(BufferedImage img) {
		WritableImage image = SwingFXUtils.toFXImage(img,null);
		ImageView view = new ImageView();
		view.setImage(image);
		return view;
	}
 

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