int FilterLed::GetMeanPosition ( const int  x, const int  y, const int  boxx, const int  boxy, float &  mx, float &  my, unsigned int &  sum  ) const

private

Definition at line 246 of file FilterLed.cc.

{
    unsigned int sumx=0;
    unsigned int sumy=0;

    sum=0;
    for (int dx=x-boxx; dx<x+boxx+1; dx++)
        for (int dy=y-boxy; dy<y+boxy+1; dy++)
        {
            const uint8_t &m = fImg[dy*fW+dx];

            sumx += m*dx;
            sumy += m*dy;
            sum  += m;
        }

    mx = (float)sumx/sum;
    my = (float)sumy/sum;

    return (int)my*fW + (int)mx;
}