Image from clipboard bad quality

[Ninstra]

Hello, I am PHP programmer and not so good at java so any help about how to increase the image quality is appriciated.

I have found a code that takes image from the users clipboard(after they press print screen button) and sends it to the server, but the quality is not the same as after taking a print screen and then pasted into ex. paint.

Here is the java code i have:

import java.awt.datatransfer.Clipboard;
import java.awt.datatransfer.DataFlavor;
import java.awt.Toolkit;
import java.awt.Color;
import java.awt.image.BufferedImage;
import java.awt.image.ImageObserver;
import javax.swing.JApplet;
import javax.swing.JOptionPane;
import javax.swing.ImageIcon;
import java.io.ByteArrayOutputStream;
import com.sun.image.codec.jpeg.JPEGImageEncoder;
import com.sun.image.codec.jpeg.JPEGCodec;
import java.net.URL;
import java.net.URLConnection;
import java.io.InputStream;
import javax.swing.JLabel;

public class PasteImageApplet extends JApplet{

    Clipboard clipboard;
    Toolkit toolkit;
	JLabel lbl;

    public String getClipboardImageURL(String server){
		lbl.setText("pasting image");

        String url = "";
        try{
            DataFlavor dataFlavor = DataFlavor.imageFlavor;
            System.out.println(dataFlavor.getDefaultRepresentationClass());
            Object object  = null;

            try{
                object = clipboard.getContents(null).getTransferData(dataFlavor);
            }catch (Exception e){
                JOptionPane.showMessageDialog(null, "No image found.");
                return "";
            }

            BufferedImage img = (BufferedImage) object;

            BufferedImage bimg = null;
            int w = img.getWidth(null);
            int h = img.getHeight(null);
            bimg = new BufferedImage(w,h,BufferedImage.TYPE_INT_RGB);


            ImageIcon ii = new ImageIcon(img);
            ImageObserver is = ii.getImageObserver();

            bimg.getGraphics().setColor(new Color(255, 255, 255));
            bimg.getGraphics().fillRect(0, 0, w, h);
            bimg.getGraphics().drawImage(ii.getImage(), 0, 0, is);

            ByteArrayOutputStream stream = new ByteArrayOutputStream();
            JPEGImageEncoder jpeg = JPEGCodec.createJPEGEncoder(stream);
            jpeg.encode(bimg);                                               

            URL u = new URL(server);
            URLConnection con = u.openConnection();
            //String boundary = "-----------------------------7d637a1aa100de";
            con.setDoOutput(true);
            con.getOutputStream().write(stream.toByteArray());
            /*con.getOutputStream().write(((String)
                    "--"+boundary+"\r\n "+
                    "Content-Disposition: form-data; name=\"img\"; filename=\"filename\"\r\n"+
                    "Content-Type: image/jpeg\r\n "+
                    "Content-Transfer-Encoding: base64\r\n\r\n" +
                    Base64.encodeBytes(stream.toByteArray())).getBytes());*/
            con.connect();
            InputStream inputStream = con.getInputStream();
            byte [] urlBytes = new byte [inputStream.available()];
            inputStream.read(urlBytes);
            url = new String(urlBytes);
            System.out.print(url);
	        lbl.setText("image pasted");
        } catch (Exception exc){
	        lbl.setText("an error occurred: " + exc.getMessage());
            /*if (ShowExceptions.ShowExceptions)
                exc.printStackTrace();*/
        }
        return url;
    }

    public void init() {
		lbl = new JLabel("");
		lbl.setText("applet started");
		add(lbl);
        toolkit = Toolkit.getDefaultToolkit();
        clipboard = toolkit.getSystemClipboard();
    }
}

[Norm]

Where is the class PNGImageEncoder defined? I get a 'cannot find symbol' compile error.

[gafa]

I guess you shouldn't encode image as

PNGImageEncoder jpeg = PNGCodec.createPNGEncoder(stream); 
jpeg.encode(bimg);

before sending...

Because, as I remember, PNG decreases high resolution image quality :confused:

[Ninstra]

Hi again. Sorry the javacode in my first post was not the original one I found(i have edited that post now). I tryed myself to change from JPG imagetype to PNG because i believed it would make a difference. But I maby did something wrong.

So is it possible the JPEGImageEncoder has a default quality value? And needs to be set to 100%?

I also need help making it send as PNG instead of JPG.

Thanks.

[Norm]

Wasting everyone's time by posting the wrong code.
Let us know when you've posted the right code.

[Ninstra]

Yes i know Im sorry. The code that is in the first post now is working. It is sending back JPG image.