// Get accuracy of the predicted results
float accuracy(const array& predicted, const array& target)
{
return 100 * count<float>(predicted == target) / target.elements();
}
float abserr(const array& predicted, const array& target)
{
return 100 * sum<float>(abs(predicted - target)) / predicted.elements();
}
#include <arrayfire.h>
#include <af/dim4.hpp>
#include <string>
#include <vector>
#include <testHelpers.hpp>
using std::vector;
using af::array;
using af::randu;
TEST(rgb_gray, 32bit)
{
array rgb = randu(10, 10, 3);
array gray = rgb2gray(rgb);
vector<float> h_rgb(rgb.elements());
vector<float> h_gray(gray.elements());
rgb.host(&h_rgb[0]);
gray.host(&h_gray[0]);
int num = gray.elements();
int roff = 0;
int goff = num;
int boff = 2 * num;
const float rPercent=0.2126f;
const float gPercent=0.7152f;
const float bPercent=0.0722f;
for (int i = 0; i < num; i++) {