Hi,

I have memory leakage problem using ImagePlus.show() when I use ij
library outside ImageJ. Even after I close the imageplus window, the
memory is not free. I tested the similar situation inside ImageJ and I
don't encounter any memory problem. My test code is attached at the
end. Press the "Show Image" button to show a big image stack. Press the
"show memory usage" to check memory usage. Apparently, no memory is
free after the big image stack is closed...

I am not a very experience Java/ImageJ programmer. Any advice will be
helpful.

samuel

//--------------------------------------------------
package bugReveal;

import ij.IJ;
import ij.ImagePlus;
import ij.ImageStack;
import ij.process.ByteProcessor;

import java.awt.BorderLayout;
import javax.swing.JPanel;
import javax.swing.JFrame;
import javax.swing.JButton;

public class ImagePlusShow extends JFrame {

 private JPanel jContentPane = null;  //  @jve:decl-index=0:
 private JButton jButton = null;  //  @jve:decl-index=0:
 private JButton jButton1 = null;

 ImagePlus createBigStackImagePlus()
   {
     ImageStack ims=new ImageStack(640,480);
     ByteProcessor bp;
     for (int i=0;i<50;i++)
       {
         bp = new ByteProcessor(640,480);
         ims.addSlice("",bp);
       }
     ImagePlus imp=new ImagePlus("",ims);
     return imp;
   }

 /**
  * This method initializes jButton
  *
  * @return javax.swing.JButton
  */
 private JButton getJButton() {
   if (jButton == null) {
     jButton = new JButton();
     jButton.setText("Show Image");
     jButton.addActionListener(new java.awt.event.ActionListener() {
       public void actionPerformed(java.awt.event.ActionEvent e) {
         createBigStackImagePlus().show();
       }
     });
   }
   return jButton;
 }

 /**
  * This method initializes jButton1
  *
  * @return javax.swing.JButton
  */
 private JButton getJButton1() {
   if (jButton1 == null) {
     jButton1 = new JButton();
     jButton1.setText("show memory usage");
     jButton1.addActionListener(new java.awt.event.ActionListener() {
       public void actionPerformed(java.awt.event.ActionEvent e) {
         System.out.println(IJ.currentMemory());
       }
     });
   }
   return jButton1;
 }

 /**
  * @param args
  */
 public static void main(String[] args) {
   new ImagePlusShow();
 }

 /**
  * This is the default constructor
  */
 public ImagePlusShow() {
   super();
   initialize();
 }

 /**
  * This method initializes this
  *
  * @return void
  */
 private void initialize() {
   this.setSize(300, 200);
   this.setContentPane(getJContentPane());
   this.setTitle("JFrame");
   this.pack();
   this.setVisible(true);
 }

 /**
  * This method initializes jContentPane
  *
  * @return javax.swing.JPanel
  */
 private JPanel getJContentPane() {
   if (jContentPane == null) {
     jContentPane = new JPanel();
     jContentPane.setLayout(new BorderLayout());
     jContentPane.add(getJButton(), java.awt.BorderLayout.CENTER);
     jContentPane.add(getJButton1(), java.awt.BorderLayout.SOUTH);
   }
   return jContentPane;
 }
 
}