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/********************************
Author: Sravanthi Kota Venkata
********************************/
#include "sdvbs_common.h"
F2D* ffConv2_dY(F2D* a, F2D* b)
{
F2D *c, *out;
int ma, na, mb, nb, ci, cj, i, j, m, n;
int r_index, c_index;
ma = a->height;
na = a->width;
mb = b->height;
nb = b->width;
r_index = ceil((mb + 1.0)/2.0);
c_index = ceil((nb + 1.0)/2.0);
ci = ma+mb-1;
cj = na+nb-1;
c = fSetArray(ci, cj, 0);
for(i=0; i<cj; i++)
{
for(j=0; j<ci; j++)
{
for(m=0; m<na; m++)
{
for(n=0; n<ma; n++)
{
if( (i-m)>=0 && (j-n)>=0 && (i-m)<nb && (j-n)<mb )
subsref(c,j,i) += subsref(a,n,m) * subsref(b,j-n,i-m);
}
}
}
}
out = fMallocHandle(ma, na);
for(i=0; i<ma; i++)
{
for(j=0; j<na; j++)
{
subsref(out,i,j) = subsref(c,(i+r_index-1),(j+c_index-1));
}
}
return out;
}
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