medianfilter5x5.cpp

 /* Median filter 5x5 6<sup>th</sup> kernel */
float MedianFile5x5(unsigned char* inbuf, unsigned char* outbuf, int height, int width){        
   unsigned char wind[25];        
   int start = GetTickCount();        
   int cnt=0;       
   for(int i=2; i< height - 2; i++)  
      for(int j=2; j< width - 2; j++){      
        cnt=0;             
        for(int p=-2;p<=2;p++){            
           for(int k=-2;k<=2;k++){            
              wind[cnt++]=inbuf[(i+p)*width+j+k];
           }                     
        }  
        sort(wind,wind+25);                 
       outbuf[i*width+j] = wind[12]; /*get central value */       
      }    
    
return (float)(GetTickCount()-start); 
}