boost/libs/gil/test/extension/io/subimage_test.hpp
2021-10-05 21:37:46 +02:00

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//
// Copyright 2013 Christian Henning
//
// 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
//
#ifndef BOOST_GIL_IO_TEST_SUBIMAGE_TEST_HPP
#define BOOST_GIL_IO_TEST_SUBIMAGE_TEST_HPP
#include <boost/gil.hpp>
#include <boost/core/lightweight_test.hpp>
#include <string>
template <typename Image, typename Format>
void run_subimage_test(
std::string const& filename, boost::gil::point_t const& top_left, boost::gil::point_t const& dimension)
{
Image original, subimage;
boost::gil::read_image(filename, original, Format{});
boost::gil::image_read_settings<Format> settings(top_left, dimension);
boost::gil::read_image(filename, subimage, settings);
BOOST_TEST(boost::gil::equal_pixels(
boost::gil::const_view(subimage),
boost::gil::subimage_view(boost::gil::const_view(original), top_left, dimension)));
}
#endif // BOOST_GIL_IO_TEST_SUBIMAGE_TEST_HPP