libs/gil/test/core/image_processing/median_filter.cpp
//
// Copyright 2019 Miral Shah <miralshah2211@gmail.com>
//
// Use, modification and distribution are subject to 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/image_view.hpp>
#include <boost/gil/algorithm.hpp>
#include <boost/gil/gray.hpp>
#include <boost/gil/image_processing/filter.hpp>
#include <boost/core/lightweight_test.hpp>
namespace gil = boost::gil;
std::uint8_t img[] =
{
183, 128, 181, 86, 34, 55, 134, 164, 15,
90, 59, 94, 158, 202, 0, 106, 120, 255,
65, 48, 4, 21, 21, 38, 50, 37, 228,
27, 245, 254, 164, 135, 192, 17, 241, 19,
56, 165, 253, 169, 24, 200, 249, 70, 199,
59, 84, 41, 96, 70, 58, 24, 20, 218,
235, 180, 12, 168, 224, 204, 166, 153, 1,
181, 213, 232, 178, 165, 253, 93, 214, 72,
171, 50, 20, 65, 67, 133, 249, 157, 105
};
std::uint8_t output[] =
{
128, 128, 128, 94, 55, 55, 120, 134, 120,
90, 90, 86, 86, 38, 50, 55, 120, 164,
65, 65, 94, 135, 135, 50, 50, 106, 228,
56, 65, 165, 135, 135, 50, 70, 70, 199,
59, 84, 165, 135, 135, 70, 70, 70, 199,
84, 84, 165, 96, 168, 166, 153, 153, 153,
181, 180, 168, 165, 168, 165, 153, 93, 72,
181, 180, 168, 165, 168, 166, 166, 153, 105,
171, 171, 65, 67, 133, 133, 157, 157, 105
};
void test_median_filter_with_kernel_size_3()
{
gil::gray8c_view_t src_view =
gil::interleaved_view(9, 9, reinterpret_cast<const gil::gray8_pixel_t*>(img), 9);
gil::image<gil::gray8_pixel_t> temp_img(src_view.width(), src_view.height());
typename gil::image<gil::gray8_pixel_t>::view_t temp_view = view(temp_img);
gil::gray8_view_t dst_view(temp_view);
gil::median_filter(src_view, dst_view, 3);
gil::gray8c_view_t out_view =
gil::interleaved_view(9, 9, reinterpret_cast<const gil::gray8_pixel_t*>(output), 9);
BOOST_TEST(gil::equal_pixels(out_view, dst_view));
}
int main()
{
test_median_filter_with_kernel_size_3();
return ::boost::report_errors();
}