/*******************************************************

* Copyright (c) 2014, ArrayFire

* All rights reserved.

*

* This file is distributed under 3-clause BSD license.

* The complete license agreement can be obtained at:

* http://arrayfire.com/licenses/BSD-3-Clause

********************************************************/

#include <af/arith.h>

#include <af/array.h>

#include <af/image.h>

#include "error.hpp"

namespace af {

void sobel(array &dx, array &dy, const array &img, const unsigned ker_size) {

af_array af_dx = 0;

af_array af_dy = 0;

AF_THROW(af_sobel_operator(&af_dx, &af_dy, img.get(), ker_size));

dx = array(af_dx);

dy = array(af_dy);

}

array sobel(const array &img, const unsigned ker_size, const bool isFast) {

array dx;

array dy;

sobel(dx, dy, img, ker_size);

if (isFast) {

return abs(dx) + abs(dy);

} else {

return sqrt(dx * dx + dy * dy);

}

}

} // namespace af