class Noise{
  float a = 0.0;
  float inc = TWO_PI/120.0;
  float a2 = 0.0;
  float inc2 = TWO_PI/255.0;
  float b=1;
  float x;
  float y;
  float z=1;
  float z2=1;
  float c=1;

  Noise(){
  }

  void blur() {
    int index,R,G,B,left,right,top,bottom;
    int a=16;
    loadPixels();
    
    for(int j=0;j<width;j++) 
    {
      for(int i=0;i<height;i++) 
      {
        index=i*width+j;

        // Wraparound offsets
        if(j>0) left=-1; else left=width-1;
        if(j==(width-1)) right=-width+1; else right=1;
        if(i>0) top=-width; else top=(height-1)*width;
        if(i==(height-1)) bottom=-(height-1)*width; else bottom=width;

        // Calculate the sum of n neighbors
        R=(pixels[left+index]>>a) & 255; // left middle
        R+=(pixels[right+index]>>a) & 255; // right middle
        R+=(pixels[index]>>a) & 255; // middle middle
        R+=(pixels[index+top]>>a) & 255; // middle top
        R+=(pixels[index+bottom]>>a) & 255; // middle bottom
        R=(R/5);

        G=(pixels[left+index]>>a/2) & 255; // left middle
        G+=(pixels[right+index]>>a/2) & 255; // right middle
        G+=(pixels[index]>>a/2) & 255; // middle middle
        G+=(pixels[index+top]>>a/2) & 255; // middle top
        G+=(pixels[index+bottom]>>a/2) & 255; // middle bottom
        G=(G/5);

        B=pixels[left+index] & 255; // left middle
        B+=pixels[right+index] & 255; // right middle
        B+=(pixels[index] & 255); // middle middle
        B+=pixels[index+top] & 255; // middle top
        B+=pixels[index+bottom] & 255; // middle bottom
        B=(B/5);
        pixels[index]=(R<<a)+(G<<a/2)+B;
      }
    }
    updatePixels();
  }

}