Image filter Assignment help

[tommy9avh]

For my assignment I have to create an emboss filter class and a test program which displays the original image and filtered image.




This is my test code

//
import java.io.*;
import java.awt.image.BufferedImage;
import javax.imageio.ImageIO;
import java.io.File;
import java.io.IOException;
import javax.swing.ImageIcon;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.SwingUtilities;
import javax.swing.JOptionPane;
import java.awt.image.Kernel;
import java.awt.image.ConvolveOp;


public class FilterTest{
public static void main(String[] args) throws IOException
{

MyEmbossFilter Filter1= new MyEmbossFilter();
                                
//Read in image
BufferedImage img=null;

File imgFile=new File("C:\\Users\\tommy\\Documents\\college2010\\software\\lab5\\Color.jpg");
try
{
  img=ImageIO.read(imgFile);
}
catch(IOException e)
{
  e.printStackTrace();
}

//Display image
ImageIcon icon=new ImageIcon(img);
JLabel label=new JLabel(icon);

final JFrame f=new JFrame("Image Display1");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f.getContentPane().add(label);
f.pack();
SwingUtilities.invokeLater(new Runnable()
          {
  public void run()
  {
    f.setLocationRelativeTo(null);
    f.setVisible(true);
  }
}
);

//Apply filter to image

  Filter1.Apply(BufferedImage img2);
  
  System.out.println("\ndebug 5 \n");

//Display filtered image
ImageIcon icon2= new ImageIcon(img2);
  JLabel label2=new JLabel(icon2);

final JFrame f2= new JFrame("Image Display2");
f2.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
f2.getContentPane().add(label);
f2.pack();
SwingUtilities.invokeLater(new Runnable()
          {
  public void run()
  {
    f2.setLocationRelativeTo(null);
    f2.setVisible(true);
  }
}
);

}
}

Im getting errors for this line in the test code
Filter1.Apply(BufferedImage img2);

Errors:
1. ')' expected
2. illegal start of expression


What am I doing wrong here?
Is there something missing out of my test program?

[pbrockway2]

Filter1.Apply(BufferedImage img2);

The error occurs because you should not mention the type of img2 when you call the method.

[tommy9avh]

Hi pbrockway2

How would I use my Apply(); function to filter the image?

I then display the filtered image. Is my test ok or does anything need to be changed?

[pbrockway2]

Call the method like this:

Filter1.Apply(img2);