import javax.media.jai.PlanarImage;
import com.sun.media.jai.codec.ByteArraySeekableStream;
import com.sun.media.jai.codec.ImageCodec;
import com.sun.media.jai.codec.ImageDecoder;
import com.sun.media.jai.codec.SeekableStream;
import java.io.FileInputStream;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
import java.awt.Image;
import java.awt.image.RenderedImage;

import javax.swing.JOptionPane;
import javax.swing.JLabel;
import javax.swing.ImageIcon;

public class ImageViewer  {

  static Image load(byte[] data) throws Exception{
    Image image = null;
    SeekableStream stream = new ByteArraySeekableStream(data);
    String[] names = ImageCodec.getDecoderNames(stream);
    ImageDecoder dec = 
      ImageCodec.createImageDecoder(names[0], stream, null);
    RenderedImage im = dec.decodeAsRenderedImage();
    image = PlanarImage.wrapRenderedImage(im).getAsBufferedImage();
    return image;
  }

  public static void main(String[] args) throws Exception{
    String path;
    if (args.length==0) {
      path = JOptionPane.showInputDialog(null, "Image Path",
      "c:/applications/sidebar.tif");
    }
    else {
      path = args[0];
    }
    FileInputStream in = new FileInputStream(path);
    FileChannel channel = in.getChannel();
    ByteBuffer buffer = ByteBuffer.allocate((int)channel.size());
    channel.read(buffer);
    Image image = load(buffer.array());
    // make sure that the image is not too big
    //  scale with a width of 500 
    Image imageScaled = 
      image.getScaledInstance(500, -1,  Image.SCALE_SMOOTH);
    //
    System.out.println("image: " + path + "\n" + image);
    //
    JOptionPane.showMessageDialog(null, new JLabel(
        new ImageIcon( imageScaled )) );
  }
}