Function test_pixel

src/backend/cuda/kernel/fast.hpp:55–59

// Returns  1 when x > p + thr
template<typename T>
inline __device__ int test_pixel(const T *local_image, const float p,
                                 const float thr, const int x, const int y) {
    return -test_smaller((float)local_image[idx(x, y)], p, thr) +
           test_greater((float)local_image[idx(x, y)], p, thr);
}

// max_val()
// Returns max of x and y