int r=0;
   int i=0,j=PIXEL_DIMENSION-1;
   while (j >= 0) {
       while (i < PIXEL_DIMENSION) {
           bmp[r] = bmpBlue[i][j];
           r++;
           bmp[r] = bmpGreen[i][j];
           r++;
           bmp[r] = bmpRed[i][j];
           r++;
           i++;
       }
   i = 0;
   j--;
   }