BufferedImage

Question

Dear All,
I have the following program from GNome which scan and then cache then image in memory buffer and save as JPEG format. My question is how do I save it as tiff format using the same class BufferImage ? Please advise.
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.awt.image.*;
import SK.gnome.twain.*;
import com.sun.image.codec.jpeg.*;
public class Example3 extends Frame
{ Image image;
int width;
int height;
public void paint(Graphics g)
{ if (null!=image)
g.drawImage(image, 0, 0, this);
public Dimension getPreferredSize()
{ return new Dimension(width, height);
public class WindowListener extends WindowAdapter
{ public void windowClosing(WindowEvent e)
{ System.exit(0);
public void scan() throws TwainException
{ Twain twain=new Twain();
image=Toolkit.getDefaultToolkit().createImage(new TwainImage(twain));
setSize(width=image.getWidth(this), image.getHeight(this));
This method saves a image data to the jpeg file format. It uses
com.sun.image.codec.jpeg package.
public void save() throws Exception
{ File f=new File("test.jpg");
int w=image.getWidth(null);
int h=image.getHeight(null);
BufferedImage bimg=new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
bimg.createGraphics().drawImage(image, 0, 0, null);
FileOutputStream out=new FileOutputStream(f);
JPEGImageEncoder encoder=JPEGCodec.createJPEGEncoder(out);
JPEGEncodeParam param=encoder.getDefaultJPEGEncodeParam(bimg);
param.setQuality(1.0f, false);
encoder.setJPEGEncodeParam(param);
encoder.encode(bimg);
out.close();
public Example3() throws Exception
{ addWindowListener(new WindowListener());
setTitle("Example3 Frame Application");
scan();
setVisible(true);
save();
public static void main(String[] args) throws Exception
{ Example3 p=new Example3();
Best Regards

Answer 1

Dear Sir,
Thanks for your prompt reply. I would like to explain my source of problem before going into BufferedImage. You see I have a program which scans multiple images through Auto document feeder(ADF) and what I do is I collect the image_content[] in array for each scan and after finish scanning all the pages, I start from 1st array to the last to encode/save the image one at a time. Now the problem begins when I starts saving/encode, instead of saving immediately, the enc.encode trigger scanning again and wrongly save the newly scan image which is a blank glass, ignoring the image_content[]. Somebody told me that the image_content[] is a pointer to image, not image content itself so he proposed me to buffer image and encode it. Here is my problem source code. Please advise soon as to solving the above problems.
import java.awt.*;
import java.awt.event.*;
import SK.gnome.twain.*;
import javax.media.jai.*;
import java.io.*;
import java.awt.image.*;
import com.sun.media.jai.codec.*;
public class Example9
{ static int frameCount=1;
static int arrayCount=0;
static RenderedOp image_content[]=null;
static class DisplayImage extends Frame
{ Image awt_image;
WindowListener listener=new WindowAdapter()
{ public void windowClosing(WindowEvent e)
{ System.exit(0);
public DisplayImage(TwainSource source) throws NullPointerException
{   super("Image: "+frameCount);
addWindowListener(listener);
     arrayCount = frameCount - 1;
awt_image=Toolkit.getDefaultToolkit().createImage(source);
MediaTracker tracker=new MediaTracker(this);
     System.out.println("Begin tracker add image");
tracker.addImage(awt_image, 0);
try
{ tracker.waitForAll();
catch (InterruptedException e)
     System.out.println("End tRacker add image");
System.out.println("ok" + frameCount);
System.out.println("before_rendered_image_content " + frameCount);
image_content[arrayCount] = (RenderedOp) JAI.create("AWTImage", awt_image);
     System.out.println("after_rendered_image_content " + frameCount);
tracker.removeImage(awt_image);
setSize(new Dimension(awt_image.getWidth(this)+40, awt_image.getHeight(this)+60));
setVisible(true);
     //new SaveImage(image_content);
     frameCount++;
     System.out.println("after plus 1");
public void paint(Graphics g)
{ if (null!=awt_image)
g.drawImage(awt_image, 20, 40, this);
static public void SaveImage(int image_counter)
try{
     System.out.println("Begin try" + image_counter);
//OutputStream os = new FileOutputStream("doc" + image_counter + ".tiff");
     OutputStream os = new FileOutputStream(new File("C:" + File.separator + "iims" + File.separator + "doc" + image_counter + ".tiff"));      
     System.out.println("afteroutputstream " + frameCount);
//int w=image_content.getWidth(null);
//int h=image_content.getHeight(null);
//BufferedImage bimg=new BufferedImage(w, h, BufferedImage.TYPE_INT_RGB);
//bimg.createGraphics().drawImage(image_content[image_counter], 0, 0, null);
TIFFEncodeParam param = new TIFFEncodeParam();
//param.setCompression(TIFFEncodeParam.COMPRESSION_DEFLATE);     
ImageEncoder enc = ImageCodec.createImageEncoder("TIFF", os,param);
     System.out.println("before encode image content " + image_counter);
enc.encode(image_content[image_counter]);
     //enc.encode(bimg);
     System.out.println("after enc.encode image content " + image_counter);
os.close();
     System.out.println("after os.close = " + image_counter);
     System.out.println("End try" + image_counter);
catch(IOException ioe)
          System.out.println(ioe);
public static void main(String[] args) throws TwainException
{ TwainSource source=TwainManager.selectSource(null);
//Twain source=new Twain();
// Default values for these settings are set by Twain source.
// All settings are requests only and can be refused.
// Order of settings reguests is not important.
// Settings are sent to Twain source (in the correct order),
// when some consumer calls StartProduction method of the Twain class.
source.setVisible(true);
source.setPixelType(Twain.RGB);
source.setXResolution(75.0);
source.setYResolution(75.0);
// Option for selecting Automatic Document feeder.
source.setFeederEnabled(true);
// When set to true, the behavior of the source is to eject
// one page and feed the next page after frame of the first page is acquired.
source.setAutoFeed(true);
// Setup duplex scanning.
source.setDuplexEnabled(true);
// The number of images requested by the application.
// -1 = Accept any number of images available.
// Scanning capabilities must be set before first scanning.
source.setTransferCount(-1);
// initialise new array
image_content = new RenderedOp[50];
do
{   System.out.println("before call DisplayImage ");
     new DisplayImage(source);
     System.out.println("after call DisplayImage ");
while (source.hasMoreImages());
source.setFeederEnabled(false);
source.setAutoFeed(false);
source.setDuplexEnabled(false);
for (int i=0; i<image_content.length; i++)
     SaveImage(i);
}