Re: How to create a TIFF image from a binary raw data

Jeff Higgins wrote:
...


Not at all. In fact, I'm glad you asked. I was tempted to
post it in my reply, but the changes were so trivial I thought
best not at the time.

<sscce>
import javax.imageio.ImageIO;
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.io.FileNotFoundException;
import java.io.IOException;
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 ImageLoader
{
  public static void main(String[] args)
  {
    for (String s : ImageIO.getReaderFormatNames())
    System.out.println(s);
    try
    {
      String path;
      if (args.length==0)
      {
        path = JOptionPane
          .showInputDialog(
            null,
            "Image Path",
            "D:/PP/GAMMA.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());

      System.out.println("image: " + path + "\n" + image);
      JOptionPane.showMessageDialog(null,
        new JLabel(
        new ImageIcon( image )) );
    }
    catch (FileNotFoundException e)
    {
      e.printStackTrace();
    }
    catch (IOException e)
    {
      e.printStackTrace();
    }
  }

  static Image load(byte[] data)
  {
    Image image = null;
    try
    {
      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();
    }
    catch (Exception e)
    {
      e.printStackTrace();
    }
    return image;
  }
}
</sscce>

<beseechingly>
You'll have to forgive my failure to wrap those calls
to Swing methods in a Runnable, (shrugs) or perhaps
not. In any case, I am confident you are capable of
doing that yourself, and I wanted to post the code
*exactly* as I'd seen it work.

Oh, and if I was going to take it beyond 'absolutely trivial'
changes, I would probably swap that first input dialog for
a JFileChooser.
</beseechingly>


Cool. Thanks to 'aastha' for the original code, and you
for the alterations and link. That was actually the first
time I'd played with JAI, your post 'inspired me'. :-)

--
Andrew Thompson
http://www.athompson.info/andrew/

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