#include <stdio.h>

#include <cstdlib>

#include <arrayfire.h>

using namespace af;

static array img;

static float h_dx[] = {1.f / 12, -8.f / 12, 0, 8.f / 12, -1.f / 12}; // five point stencil

static float h_spread[] = {1.f / 5, 1.f / 5, 1.f / 5, 1.f / 5, 1.f / 5};

static array dx, spread, kernel; // device kernels

static array full_out, dsep_out, hsep_out; // save output for value checks

static void full() { full_out = convolve2(img, kernel);}

static void dsep() { dsep_out = convolve(dx, spread, img); }

static bool fail(array &left, array &right)

{

return (max<float>(abs(left - right)) > 1e-6);

}

int main(int argc, char **argv)

}