高分！JAVA的图形过滤问题！ (200分)

        BufferedImage image;
        Image img;
        Image img2;
        public voiddo
Get(HttpServletRequest req,HttpServletResponse res)
                        throws ServletException ,IOException {
                PrintWriter out = res.getWriter();
                try {
                        Frame frame = new Frame();
                        frame.addNotify();
                        frame.setBackground(new Color(255,212,212));
                        image = (BufferedImage) frame.createImage(512, 384);
                        Graphics graphics = image.getGraphics();
                        MediaTracker mt = new MediaTracker(frame) ;
                        try {
                                img = Toolkit.getDefaultToolkit().getImage("C://kyo.jpg");
                                mt.addImage(img, 0) ;
                                mt.waitForID(0) ;
                        }
                        catch (Exception e) {
                                e.printStackTrace() ;
                        }
                        int imgWidth = img.getWidth(frame) ;
                        int imgHeight = img.getHeight(frame) ;
                        ImageFilter imgFilter = new ReplicateScaleFilter( imgWidth/2 , imgHeight/2 ) ;
                        FilteredImageSource fImgSource = new FilteredImageSource(img.getSource(), imgFilter) ;
                        img2 = frame.createImage(fImgSource);
                        if (graphics.drawImage(img2, 0, 0,frame)) {
                                res.setContentType("image/jpeg");
                                ServletOutputStream outi = res.getOutputStream();
                                JPEGImageEncoder encoder = JPEGCodec.createJPEGEncoder(outi);
                                encoder.encode(image);
                        }
                        else
 {
                                out.println("no draw!");
                        }
                } catch(Exception e) {
                        out.println(e);
                }
        }