mirror of
https://github.com/boostorg/gil.git
synced 2026-01-29 19:42:11 +00:00
dafcaa169e
Add separate header `test/unit_test_utility.hpp` for printers and other utilities for better integration of GIL types with Boost.Test.
91 lines
3.2 KiB
C++
91 lines
3.2 KiB
C++
//
|
|
// Copyright 2019 Mateusz Loskot <mateusz at loskot dot net>
|
|
//
|
|
// 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
|
|
//
|
|
#include <boost/gil.hpp>
|
|
#include <boost/gil/extension/numeric/convolve.hpp>
|
|
|
|
#include <tuple>
|
|
#include <type_traits>
|
|
|
|
#define BOOST_TEST_MODULE test_ext_numeric_colvolve_2d
|
|
#include "unit_test.hpp"
|
|
#include "unit_test_utility.hpp"
|
|
#include "test_fixture.hpp"
|
|
#include "core/image/test_fixture.hpp"
|
|
|
|
namespace gil = boost::gil;
|
|
namespace fixture = boost::gil::test::fixture;
|
|
|
|
namespace {
|
|
|
|
template <typename Pixel, typename SrcView, typename Kernel, typename DstView>
|
|
void convolve2d(SrcView const& src_view, Kernel const& kernel, DstView const& dst_view)
|
|
{
|
|
gil::convolve_rows<Pixel>(src_view, kernel, dst_view);
|
|
gil::convolve_cols<Pixel>(src_view, kernel, dst_view);
|
|
}
|
|
|
|
} // unnamed namespace
|
|
|
|
BOOST_AUTO_TEST_SUITE(convolve_2d)
|
|
|
|
BOOST_AUTO_TEST_CASE_TEMPLATE(image_1x1_kernel_1x1_identity, Image, fixture::image_types)
|
|
{
|
|
auto const img = fixture::create_image<Image>(1, 1, 7);
|
|
Image img_out(img);
|
|
|
|
using pixel_t = typename Image::value_type;
|
|
using channel_t = typename gil::channel_type<pixel_t>::type;
|
|
auto const kernel = fixture::create_kernel<channel_t>({1});
|
|
convolve2d<pixel_t>(const_view(img_out), kernel, view(img_out));
|
|
|
|
// 1x1 kernel reduces convolution to multiplication
|
|
BOOST_TEST(gil::const_view(img).front() == gil::const_view(img_out).front());
|
|
}
|
|
|
|
BOOST_AUTO_TEST_CASE_TEMPLATE(image_1x1_kernel_3x3_identity, Image, fixture::image_types)
|
|
{
|
|
auto const img = fixture::create_image<Image>(1, 1, 7);
|
|
Image img_out(img);
|
|
|
|
using pixel_t = typename Image::value_type;
|
|
using channel_t = typename gil::channel_type<pixel_t>::type;
|
|
auto const kernel = fixture::create_kernel<channel_t>({0, 0, 0, 0, 1, 0, 0, 0, 0});
|
|
convolve2d<pixel_t>(const_view(img_out), kernel, view(img_out));
|
|
|
|
BOOST_TEST(gil::const_view(img).front() == gil::const_view(img_out).front());
|
|
}
|
|
|
|
BOOST_AUTO_TEST_CASE_TEMPLATE(image_3x3_kernel_3x3_identity, Image, fixture::image_types)
|
|
{
|
|
using pixel_t = typename Image::value_type;
|
|
using channel_t = typename gil::channel_type<pixel_t>::type;
|
|
auto const img = fixture::generate_image<Image>(3, 3, fixture::random_value<channel_t>{});
|
|
Image img_out(img);
|
|
|
|
auto const kernel = fixture::create_kernel<channel_t>({0, 0, 0, 0, 1, 0, 0, 0, 0});
|
|
convolve2d<pixel_t>(const_view(img_out), kernel, view(img_out));
|
|
|
|
BOOST_TEST(gil::equal_pixels(gil::const_view(img), gil::const_view(img_out)));
|
|
}
|
|
|
|
BOOST_AUTO_TEST_CASE_TEMPLATE(image_5x5_kernel_3x3_identity, Image, fixture::image_types)
|
|
{
|
|
using pixel_t = typename Image::value_type;
|
|
using channel_t = typename gil::channel_type<pixel_t>::type;
|
|
auto const img = fixture::generate_image<Image>(5, 5, fixture::random_value<channel_t>{});
|
|
Image img_out(img);
|
|
|
|
auto const kernel = fixture::create_kernel<channel_t>({0, 0, 0, 0, 1, 0, 0, 0, 0});
|
|
convolve2d<pixel_t>(const_view(img_out), kernel, view(img_out));
|
|
// TODO: Test different boundary options
|
|
|
|
BOOST_TEST(gil::equal_pixels(gil::const_view(img), gil::const_view(img_out)));
|
|
}
|
|
|
|
BOOST_AUTO_TEST_SUITE_END()
|