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-   -   Problem with median filter c++ (http://www.go4expert.com/forums/median-filter-cpp-t19969/)

metamofia 3Nov2009 08:35

Problem with median filter c++
 
Hi, i have done with implementing codes for median filter on a 8-bit bitmap image. somehow i get a distorted image, totally distorted.. so this is my code:

Code:


void CLEO_MedivisionView::OnNoiseremovalMedianfilter()
{
int x, y, k, s;
int medianarray1[9];
 
if (no_of_rows == 512 && no_of_cols==512)
{
for(x=1; x<no_of_cols-1; x++)
{
for (y=1; y<no_of_rows-1; y++)
{
medianarray1[4] = image[y*no_of_cols + x];        //this is for moving the 3*3 window
                                                                              to the image of 2D array //
medianarray1[0] = image[y-1*no_of_cols + x-1];
medianarray1[1] = image[y-1*no_of_cols + x];
medianarray1[2] = image[y-1*no_of_cols + x+1];
medianarray1[3] = image[y*no_of_cols + x-1];
medianarray1[5] = image[y*no_of_cols + x+1];
medianarray1[6] = image[y+1*no_of_cols + x-1];
medianarray1[7] = image[y+1*no_of_cols + x];
medianarray1[8] = image[y+1*no_of_cols + x+1];

for (k=0; k<9; k++) {
for(s=0; s<9-1; s++){
if(medianarray1[s]>medianarray1[s+1]){
int temp = medianarray1[s+1];
medianarray1[s+1] = medianarray1[s];
medianarray1[s] = temp;
}
}
}
image[y*no_of_cols + x]= medianarray1[4];
}
}
}
Draw();
}

can someone highlight to me where i actually went wrong?


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