Emboss Java Applet Example

 import java.awt.*; 
 import java.awt.image.*; 
 import java.applet.*; 
 /*<APPLET CODE=JavaExampleEmbossInApplet.class WIDTH=300 HEIGHT=300 ></APPLET>*/ 
 public class JavaExampleEmbossInApplet extends Applet 
   { 
        Image img,img1; 
        public void init() 
          { 
               img = getImage(getDocumentBase(),"snow.gif"); 
               int pxls[] = new int[248 * 248]; 
               PixelGrabber PxlGrbr = new PixelGrabber(img, 0, 0, 248,248, pxls,0,248); 
               try 
              { 
                     PxlGrbr.grabPixels(); 
                  } 
                     catch (InterruptedException e1) {} 
                     for (int x = 2; x < 247; x++) 
                         { 
                            for (int y = 2; y < 247; y++) 
                             { 
                                      int red = ((pxls[(x + 1) * 248 + y + 1] & 0xFF) -(pxls[x * 248 + y] & 0xFF)) + 128; 
                                      int green = (((pxls[(x + 1) * 248 + y + 1] & 0xFF00) / 0x100) % 0x100 - ((pxls[x * 248 + y] & 0xFF00) / 0x100) % 0x100) + 128; 
                                      int blue = (((pxls[(x + 1) * 248 + y + 1] & 0xFF0000) / 0x10000) % 0x100 - ((pxls[x * 248 + y] & 0xFF0000) / 0x10000) % 0x100) + 128; 
                                      int avg = (red + green + blue) / 3;pxls[x * 248 + y] = (0xff000000 | avg << 16 | avg << 8 | avg); 
                                 } 
                       } 
                                     img = createImage(new MemoryImageSource(248,248,pxls,0,248)); 
          } 
                                     public void paint(Graphics gr) 
                                       { 
                                           gr.drawImage(img, 0, 0, this); 
                                       } 
   }