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/********************************
Author: Sravanthi Kota Venkata
********************************/
#include "sdvbs_common.h"
F2D* ffConv2(F2D* a, F2D* b)
{
F2D *c, *out;
int ma, na, mb, nb, ci, cj, i, j, m, n, ri, mm, nn;
int r_index, c_index;
ma = a->height;
na = a->width;
mb = b->height;
nb = b->width;
ci = ma;
cj = na;
c = fSetArray(ci, cj, 0);
r_index = mb/2;
c_index = nb/2;
for(i=0; i<ma; i++)
{
for(j=0; j<na; j++)
{
for(m=0; m<mb; m++)
{
mm = mb-1-m;
for(n=0; n<nb; n++)
{
nn = nb-1-n;
ri = i+m-r_index;
ci = j+n-c_index;
if(ri >=0 && ri < ma && ci >= 0 && ci < na)
subsref(c,i,j) += subsref(a,ri,ci) * subsref(b,mm,nn);
}
}
}
}
return c;
}
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