Re: Save contents of image icon.

From:

bH <bherbst65@hotmail.com>

Newsgroups:

comp.lang.java.help

Date:

Wed, 11 Jul 2007 18:41:59 -0700

Message-ID:

<1184204519.197546.204440@g4g2000hsf.googlegroups.com>

On Jul 11, 11:06 am, bH <bherbs...@hotmail.com> wrote:

Hi All,
I have a jpg image that has been cut up into 16 pieces. I need help to
save each of the pieces.

Any help is appreciated.

TIA

bH

import java.awt.*;
import java.io.*;
import javax.swing.*;
import java.awt.image.*;
import javax.imageio.*;

    public class DiceImage extends JFrame {
      BufferedImage bi = null;
        DiceImage() {
        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
      }
      public void init() {
        try {
          bi = ImageIO.read(new File("images/ImageToDice.jpg"));
        } catch(IOException ioe) {
          ioe.printStackTrace();
          throw new RuntimeException(ioe);
        }
        setLayout(new FlowLayout());
           if(bi != null) {
          for(int i = 0; i < 4; i++)
            for(int j = 0; j < 4; j++) {
              add(new JLabel(new
ImageIcon(bi.getSubimage(i*bi.getWidth()/4, j*bi.getHeight()/4,
bi.getWidth()/4,

bi.getHeight()/4))));
            }
            }
          pack();
        }

      public static void main(String[] args) {
        DiceImage diceImage = new DiceImage();
        diceImage.init();
        diceImage.setVisible(true);
      }
    }

Hi All,

Thanks to Roedy's mindprod.com

http://mindprod.com/jgloss/imageio.html#FROMFILE

demo from website :

Saving a BufferedImage to a file
// BufferedImage to File
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
....
ImageIO.write( aBufferedImage, "jpeg" /* "png" "jpeg" format desired,
no "gif" yet. */, new File ( "snap.jpg" ) /* target */ );

my program with revisions now saves 16 XXX.jpg images :

import java.awt.*;
import java.io.*;
import javax.swing.*;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;

public class DiceImage extends JFrame {
  BufferedImage bi = null;
  int C = 0;
  String PixName;

  DiceImage() {
    setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  }
  public void init() {
    try {
      bi = ImageIO.read(new File("images/ImageToDice.jpg"));
    } catch(IOException ioe) {
      ioe.printStackTrace();
      //throw new RuntimeException(ioe);
    }
    setLayout(new FlowLayout());

       if(bi != null) {
      for(int i = 0; i < 4; i++)
        for(int j = 0; j < 4; j++) {
       PixName = "Pix" + C;
       System.out.println(PixName);// review name output
      //screen output
    add(new JLabel(new ImageIcon(bi.getSubimage(i*bi.getWidth()/
4,j*bi.getHeight()/4, bi.getWidth()/4,bi.getHeight()/4))));// image
file output
   try {
        ImageIO.write((bi.getSubimage(i*bi.getWidth()/4,
j*bi.getHeight()/4, bi.getWidth()/4,bi.getHeight()/4)), "jpeg", new
File("images/"+ PixName +
".jpg"));

        C++;
        }
        catch ( IOException e )
         {
          System.out.println( "image missing" );
         }
        }
      pack();
    }
}
  public static void main(String[] args) {
    DiceImage diceImage = new DiceImage();
    diceImage.init();
    diceImage.setVisible(true);
  }
}

bH