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/************************************************************************
*
* Copyright (C) 2025 IRCAD France
*
* This file is part of Sight.
*
* Sight is free software: you can redistribute it and/or modify it under
* the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* Sight is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with Sight. If not, see <https://www.gnu.org/licenses/>.
*
***********************************************************************/
#pragma once
#include <sight/utest_data/config.hpp>
#include <data/image.hpp>
#include <map>
#include <string>
namespace sight::utest_data::image
{
static bool SIGHT_UTEST_DATA_IMAGE_DEBUG = false;
//------------------------------------------------------------------------------
/** @brief Debug function to print image content to the standard output.
* This is meant to help debugging unit tests with very small test images.
* It can output any pixel type as long as a translation map is provided.
* Example of output for a 6x4 image with pixel values 0 and 80:
*
* xxxOOO
* xxOOOO
* xOOOOO
* OOOOOO
*
* By default the output of this function is disabled.
* To enable it, set the variable SIGHT_UTEST_DATA_IMAGE_DEBUG to true.
*
* @tparam T1 Pixel type of the image.
* @tparam T2 Type of the translated value.
* @param _image Image to print.
* @param _translator Map translating pixel values to strings for display, i.e. {{0, 'x'}, {80, 'o'}}.
*/
template<class T1, class T2>
void cout_debug(sight::data::image& _image, const std::map<T1, T2>& _translator)
{
if(not SIGHT_UTEST_DATA_IMAGE_DEBUG)
{
return;
}
std::cout << "Image debug: " << _image.get_id() << std::endl;
std::cout << std::endl;
const auto size = _image.size();
auto it = _image.cbegin<T1>();
for(std::size_t k = 0 ; k < size[2] ; k++)
{
for(std::size_t j = 0 ; j < size[1] ; j++)
{
for(std::size_t i = 0 ; i < size[0] ; i++)
{
std::cout << _translator.at(*it);
++it;
}
std::cout << std::endl;
}
std::cout << std::endl;
}
}
} // namespace sight::utest_data::image
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