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48d7ebffe0
Move anisotropic diffusion and Hough transform into extension. Adjust tests and cmakelists
79 lines
2.6 KiB
C++
79 lines
2.6 KiB
C++
// Boost.GIL (Generic Image Library) - tests
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//
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// Copyright 2020 Olzhas Zhumabek <anonymous.from.applecity@gmail.com>
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//
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// Use, modification and distribution are subject to the Boost Software License,
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// Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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#include <boost/core/lightweight_test.hpp>
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#include <boost/gil/extension/image_processing/hough_parameter.hpp>
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namespace gil = boost::gil;
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void from_step_count_test()
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{
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const double middle_point = 0.5;
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const std::size_t step_count = 5;
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const double neighborhood = 1.0;
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auto param =
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gil::hough_parameter<double>::from_step_count(middle_point, neighborhood, step_count);
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BOOST_TEST(param.start_point == middle_point - neighborhood);
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BOOST_TEST(param.step_count == step_count * 2 + 1);
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BOOST_TEST(param.step_size == neighborhood / step_count);
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bool middle_point_occured = false;
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for (std::size_t i = 0; i < param.step_count; ++i)
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{
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auto current = param.start_point + param.step_size * i;
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if (current == middle_point)
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{
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middle_point_occured = true;
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break;
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}
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}
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BOOST_TEST(middle_point_occured);
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}
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void from_step_size_test(const double middle_point, const double step_size,
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const double neighborhood)
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{
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const std::size_t expected_step_count =
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static_cast<std::size_t>(neighborhood / step_size) * 2 + 1;
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auto param =
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gil::hough_parameter<double>::from_step_size(middle_point, neighborhood, step_size);
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BOOST_TEST(param.start_point == middle_point - step_size * std::floor(expected_step_count / 2));
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BOOST_TEST(param.step_count == expected_step_count);
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BOOST_TEST(param.step_size == step_size);
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bool middle_point_occured = false;
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for (std::size_t i = 0; i < param.step_count; ++i)
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{
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auto current = param.start_point + param.step_size * i;
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if (current == middle_point)
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{
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middle_point_occured = true;
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break;
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}
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}
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BOOST_TEST(middle_point_occured);
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}
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void minimum_step_angle_test(const std::ptrdiff_t width, const std::ptrdiff_t height)
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{
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const auto bigger_dim = width > height ? width : height;
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const double expected_angle = std::atan2(1.0, bigger_dim);
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BOOST_TEST(expected_angle == gil::minimum_angle_step({width, height}));
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}
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int main()
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{
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from_step_count_test();
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// ideal case
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from_step_size_test(2.0, 0.25, 1.0);
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from_step_size_test(5.0, 2, 5.0);
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minimum_step_angle_test(1200, 800);
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minimum_step_angle_test(800, 1200);
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return boost::report_errors();
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}
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