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/*******************************************************
* Copyright (c) 2015, 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 <gtest/gtest.h>
#include <arrayfire.h>
#include <af/dim4.hpp>
#include <af/traits.hpp>
#include <af/vision.h>
#include <string>
#include <vector>
#include <testHelpers.hpp>
template<typename T>
class DOG : public ::testing::Test
{
public:
virtual void SetUp() {}
};
// create a list of types to be tested
typedef ::testing::Types<float, double, int, uint, char, uchar, short, ushort> TestTypes;
// register the type list
TYPED_TEST_CASE(DOG, TestTypes);
TYPED_TEST(DOG, Basic)
{
if (noDoubleTests<TypeParam>()) return;
af::dim4 iDims(512, 512, 1, 1);
af::array in = af::constant(1, iDims, (af_dtype)af::dtype_traits<float>::af_type);
/* calculate DOG using ArrayFire functions */
af::array k1 = af::gaussianKernel(3, 3);
af::array k2 = af::gaussianKernel(2, 2);
af::array smth1 = af::convolve2(in, k1);
af::array smth2 = af::convolve2(in, k2);
af::array diff = smth1 - smth2;
/* calcuate DOG using new function */
af::array out= af::dog(in, 3, 2);
/* compare both the values */
float accumErr = af::sum<float>(out-diff);
EXPECT_EQ(true, accumErr<1.0e-2);
}
TYPED_TEST(DOG, Batch)
{
if (noDoubleTests<TypeParam>()) return;
af::dim4 iDims(512, 512, 3, 1);
af::array in = af::constant(1, iDims, (af_dtype)af::dtype_traits<float>::af_type);
/* calculate DOG using ArrayFire functions */
af::array k1 = af::gaussianKernel(3, 3);
af::array k2 = af::gaussianKernel(2, 2);
af::array smth1 = af::convolve2(in, k1);
af::array smth2 = af::convolve2(in, k2);
af::array diff = smth1 - smth2;
/* calcuate DOG using new function */
af::array out= af::dog(in, 3, 2);
/* compare both the values */
float accumErr = af::sum<float>(out-diff);
EXPECT_EQ(true, accumErr<1.0e-2);
}
TYPED_TEST(DOG, InvalidArray)
{
af::array in = af::randu(512);
EXPECT_THROW(af::dog(in, 3, 2),
af::exception);
}
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