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gil/test/extension/numeric/kernel.cpp
Mateusz Łoskot 8235ee645a
Hide convolve_1d, convolve_2d and kernel_2 in namespace detail (#397) 
* Hide convolve_1d and convolve_2d in namespace detail
* Hide kernel_2d in namespace detail.
* Tidy up naming of horizontal/vertical to y/x for kernel center.

Following @lpranam comments on planned changes to convolve_2d,
which will not be ready for Boost 1.72,
@mloskot proposed to hide the function as implementation detail,
https://lists.boost.org/boost-gil/2019/10/0316.php,
until it is ready and @stefanseefeld agreed on the proposal,
https://lists.boost.org/boost-gil/2019/10/0320.php.
2019-10-24 12:50:56 +02:00

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//
// Copyright 2019 Mateusz Loskot <mateusz at loskot dot net>
// Copyright 2019 Miral Shah <miralshah2211@gmail.com>
//
// Distributed under the Boost Software License, Version 1.0
// See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt
//
#define BOOST_DISABLE_ASSERTS 1 // kernel_1d_adaptor assertions are too strict
#include <boost/gil/extension/numeric/kernel.hpp>
#include <vector>
#define BOOST_TEST_MODULE test_ext_numeric_kernel
#include "unit_test.hpp"
namespace gil = boost::gil;
BOOST_AUTO_TEST_CASE(kernel_1d_default_constructor)
{
gil::kernel_1d<int> k;
BOOST_TEST(k.center() == 0);
BOOST_TEST(k.left_size() == 0);
BOOST_TEST(k.right_size() == -1); // TODO: Why not 0?
// std::vector interface
BOOST_TEST(k.size() == 0);
}
BOOST_AUTO_TEST_CASE(kernel_2d_default_constructor)
{
gil::detail::kernel_2d<int> k;
BOOST_TEST(k.center_y() == 0);
BOOST_TEST(k.center_x() == 0);
//BOOST_TEST(k.left_size() == 0);
//BOOST_TEST(k.right_size() == -1);
BOOST_TEST(k.upper_size() == 0);
BOOST_TEST(k.lower_size() == -1);
// std::vector interface
BOOST_TEST(k.size() == 0);
}
BOOST_AUTO_TEST_CASE(kernel_1d_parameterized_constructor)
{
gil::kernel_1d<int> k(9, 4);
BOOST_TEST(k.center() == 4);
BOOST_TEST(k.left_size() == 4);
BOOST_TEST(k.right_size() == 4);
// std::vector interface
BOOST_TEST(k.size() == 9);
}
BOOST_AUTO_TEST_CASE(kernel_2d_parameterized_constructor)
{
gil::detail::kernel_2d<int> k(9, 4, 4);
BOOST_TEST(k.center_y() == 4);
BOOST_TEST(k.center_x() == 4);
BOOST_TEST(k.left_size() == 4);
BOOST_TEST(k.right_size() == 4);
BOOST_TEST(k.upper_size() == 4);
BOOST_TEST(k.lower_size() == 4);
// std::vector interface
BOOST_TEST(k.size() == 9);
}
BOOST_AUTO_TEST_CASE(kernel_1d_parameterized_constructor_with_iterator)
{
std::vector<int> v(9);
gil::kernel_1d<int> k(v.cbegin(), v.size(), 4);
BOOST_TEST(k.center() == 4);
BOOST_TEST(k.left_size() == 4);
BOOST_TEST(k.right_size() == 4);
// std::vector interface
BOOST_TEST(k.size() == 9);
}
BOOST_AUTO_TEST_CASE(kernel_2d_parameterized_constructor_with_iterator)
{
std::vector<int> v(81);
gil::detail::kernel_2d<int> k(v.cbegin(), v.size(), 4, 4);
BOOST_TEST(k.center_y() == 4);
BOOST_TEST(k.center_x() == 4);
BOOST_TEST(k.left_size() == 4);
BOOST_TEST(k.right_size() == 4);
BOOST_TEST(k.upper_size() == 4);
BOOST_TEST(k.lower_size() == 4);
// std::vector interface
BOOST_TEST(k.size() == 9);
}
BOOST_AUTO_TEST_CASE(kernel_1d_copy_constructor)
{
gil::kernel_1d<int> d(9, 4);
gil::kernel_1d<int> k(d);
BOOST_TEST(k.center() == 4);
BOOST_TEST(k.center() == d.center());
BOOST_TEST(k.left_size() == d.left_size());
BOOST_TEST(k.right_size() == d.right_size());
// std::vector interface
BOOST_TEST(k.size() == d.size());
}
BOOST_AUTO_TEST_CASE(kernel_2d_copy_constructor)
{
gil::detail::kernel_2d<int> d(9, 4, 4);
gil::detail::kernel_2d<int> k(d);
BOOST_TEST(k.center_y() == 4);
BOOST_TEST(k.center_x() == 4);
BOOST_TEST(k.center_y() == d.center_y());
BOOST_TEST(k.center_x() == d.center_x());
BOOST_TEST(k.left_size() == d.left_size());
BOOST_TEST(k.right_size() == d.right_size());
BOOST_TEST(k.lower_size() == d.lower_size());
BOOST_TEST(k.upper_size() == d.upper_size());
// std::vector interface
BOOST_TEST(k.size() == d.size());
}
BOOST_AUTO_TEST_CASE(kernel_1d_assignment_operator)
{
gil::kernel_1d<int> d(9, 4);
gil::kernel_1d<int> k;
k = d;
BOOST_TEST(k.center() == 4);
BOOST_TEST(k.center() == d.center());
BOOST_TEST(k.left_size() == d.left_size());
BOOST_TEST(k.right_size() == d.right_size());
// std::vector interface
BOOST_TEST(k.size() == d.size());
}
BOOST_AUTO_TEST_CASE(kernel_2d_assignment_operator)
{
gil::detail::kernel_2d<int> d(9, 4, 4);
gil::detail::kernel_2d<int> k;
k = d;
BOOST_TEST(k.center_y() == 4);
BOOST_TEST(k.center_x() == 4);
BOOST_TEST(k.center_y() == d.center_y());
BOOST_TEST(k.center_x() == d.center_x());
BOOST_TEST(k.left_size() == d.left_size());
BOOST_TEST(k.right_size() == d.right_size());
BOOST_TEST(k.lower_size() == d.lower_size());
BOOST_TEST(k.upper_size() == d.upper_size());
// std::vector interface
BOOST_TEST(k.size() == d.size());
}
BOOST_AUTO_TEST_CASE(kernel_1d_reverse_Kernel)
{
gil::kernel_1d<int> d(12, 4);
BOOST_TEST(d.center() == 4);
auto k = gil::reverse_kernel(d);
BOOST_TEST(k.center() == d.right_size());
// std::vector interface
BOOST_TEST(k.size() == d.size());
}
BOOST_AUTO_TEST_CASE(kernel_1d_fixed_default_constructor)
{
gil::kernel_1d_fixed<int, 9> k;
BOOST_TEST(k.center() == 0);
BOOST_TEST(k.left_size() == 0);
BOOST_TEST(k.right_size() == 8); // TODO: Why not 0 or -1 if not set?
// std::array interface
BOOST_TEST(k.size() == 9);
}
BOOST_AUTO_TEST_CASE(kernel_2d_fixed_default_constructor)
{
gil::detail::kernel_2d_fixed<int, 9> k;
BOOST_TEST(k.center_x() == 0);
BOOST_TEST(k.center_y() == 0);
BOOST_TEST(k.left_size() == 0);
BOOST_TEST(k.right_size() == 8); // TODO: Why not 0 or -1 if not set?
BOOST_TEST(k.upper_size() == 0);
BOOST_TEST(k.lower_size() == 8);
// std::array interface
BOOST_TEST(k.size() == 9);
}
BOOST_AUTO_TEST_CASE(kernel_1d_fixed_parameterized_constructor)
{
gil::kernel_1d_fixed<int, 9> k(4);
BOOST_TEST(k.center() == 4);
BOOST_TEST(k.left_size() == 4);
BOOST_TEST(k.right_size() == 4);
// std::vector interface
BOOST_TEST(k.size() == 9);
}
BOOST_AUTO_TEST_CASE(kernel_2d_fixed_parameterized_constructor)
{
gil::detail::kernel_2d_fixed<int, 9> k(4, 4);
BOOST_TEST(k.center_x() == 4);
BOOST_TEST(k.center_y() == 4);
BOOST_TEST(k.left_size() == 4);
BOOST_TEST(k.right_size() == 4);
BOOST_TEST(k.upper_size() == 4);
BOOST_TEST(k.lower_size() == 4);
// std::vector interface
BOOST_TEST(k.size() == 9);
}
BOOST_AUTO_TEST_CASE(kernel_1d_fixed_parameterized_constructor_with_iterator)
{
// FIXME: The constructor should throw if v.size() < k.size()
std::vector<int> v(9);
gil::kernel_1d_fixed<int, 9> k(v.cbegin(), 4);
BOOST_TEST((gil::kernel_1d_fixed<int, 9>::static_size) == 9);
BOOST_TEST(k.center() == 4);
BOOST_TEST(k.left_size() == 4);
BOOST_TEST(k.right_size() == 4);
// std::vector interface
BOOST_TEST(k.size() == 9);
}
BOOST_AUTO_TEST_CASE(kernel_2d_fixed_parameterized_constructor_with_iterator)
{
// // FIXME: The constructor should throw if v.size() < k.size()
std::array<int, 81> v;
gil::detail::kernel_2d_fixed<int, 9> k(v.cbegin(), 4, 4);
BOOST_TEST((gil::detail::kernel_2d_fixed<int, 9>::static_size) == 9);
BOOST_TEST(k.center_y() == 4);
BOOST_TEST(k.center_x() == 4);
BOOST_TEST(k.left_size() == 4);
BOOST_TEST(k.right_size() == 4);
BOOST_TEST(k.upper_size() == 4);
BOOST_TEST(k.lower_size() == 4);
// std::vector interface
BOOST_TEST(k.size() == 9);
}
BOOST_AUTO_TEST_CASE(kernel_1d_fixed_copy_constructor)
{
gil::kernel_1d_fixed<int, 9> d(4);
gil::kernel_1d_fixed<int, 9> k(d);
BOOST_TEST((gil::kernel_1d_fixed<int, 9>::static_size) == 9);
BOOST_TEST(k.center() == 4);
BOOST_TEST(k.center() == d.center());
BOOST_TEST(k.left_size() == d.left_size());
BOOST_TEST(k.right_size() == d.right_size());
// std::vector interface
BOOST_TEST(k.size() == d.size());
}
BOOST_AUTO_TEST_CASE(kernel_2d_fixed_copy_constructor)
{
gil::detail::kernel_2d_fixed<int, 9> d(4, 4);
gil::detail::kernel_2d_fixed<int, 9> k(d);
BOOST_TEST((gil::detail::kernel_2d_fixed<int, 9>::static_size) == 9);
BOOST_TEST(k.center_x() == 4);
BOOST_TEST(k.center_y() == 4);
BOOST_TEST(k.center_x() == d.center_x());
BOOST_TEST(k.center_y() == d.center_y());
BOOST_TEST(k.left_size() == d.left_size());
BOOST_TEST(k.right_size() == d.right_size());
BOOST_TEST(k.lower_size() == d.lower_size());
BOOST_TEST(k.upper_size() == d.upper_size());
// std::vector interface
BOOST_TEST(k.size() == d.size());
}
BOOST_AUTO_TEST_CASE(kernel_1d_fixed_assignment_operator)
{
gil::kernel_1d_fixed<int, 9> d(4);
gil::kernel_1d_fixed<int, 9> k;
k = d;
BOOST_TEST((gil::kernel_1d_fixed<int, 9>::static_size) == 9);
BOOST_TEST(k.center() == 4);
BOOST_TEST(k.center() == d.center());
BOOST_TEST(k.left_size() == d.left_size());
BOOST_TEST(k.right_size() == d.right_size());
// std::vector interface
BOOST_TEST(k.size() == d.size());
}
BOOST_AUTO_TEST_CASE(kernel_2d_fixed_assignment_operator)
{
gil::detail::kernel_2d_fixed<int, 9> d(4, 4);
gil::detail::kernel_2d_fixed<int, 9> k;
k = d;
BOOST_TEST((gil::detail::kernel_2d_fixed<int, 9>::static_size) == 9);
BOOST_TEST(k.center_x() == 4);
BOOST_TEST(k.center_y() == 4);
BOOST_TEST(k.center_x() == d.center_x());
BOOST_TEST(k.center_y() == d.center_y());
BOOST_TEST(k.left_size() == d.left_size());
BOOST_TEST(k.right_size() == d.right_size());
BOOST_TEST(k.lower_size() == d.lower_size());
BOOST_TEST(k.upper_size() == d.upper_size());
// std::vector interface
BOOST_TEST(k.size() == d.size());
}
BOOST_AUTO_TEST_CASE(kernel_1d_fixed_reverse_Kernel)
{
std::array<int, 3> values = {1, 2, 3};
gil::kernel_1d_fixed<int, 3> d(values.begin(), 1);
BOOST_TEST((gil::kernel_1d_fixed<int, 3>::static_size) == 3);
BOOST_TEST(d == values);
std::array<int, 3> values_rev = {3, 2, 1};
auto k = gil::reverse_kernel(d);
BOOST_TEST(k == values_rev);
}
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