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/************************************************************************
*
* Copyright (C) 2009-2024 IRCAD France
* Copyright (C) 2012-2020 IHU Strasbourg
*
* 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/>.
*
***********************************************************************/
#include <io/itk/itk.hpp>
#include <core/com/signal.hxx>
#include <core/spy_log.hpp>
#include <ui/__/dialog/message.hpp>
// Services tools
#include <service/macros.hpp>
#include "images_substract.hpp"
#include <itkSubtractImageFilter.h>
namespace sight::module::filter::image
{
//------------------------------------------------------------------------------
images_substract::images_substract() :
filter(m_signals)
{
}
//------------------------------------------------------------------------------
void images_substract::configuring()
{
}
//------------------------------------------------------------------------------
void images_substract::starting()
{
}
//------------------------------------------------------------------------------
void images_substract::stopping()
{
}
//------------------------------------------------------------------------------
void images_substract::updating()
{
core::type requested_type = core::type::INT16;
const auto image1 = m_image1.lock();
const auto image2 = m_image2.lock();
auto image_result = m_result.lock();
// Test if the both images have the same type and it is signed short.
const bool is_same_type = (image1->type() == image2->type() && image1->type() == requested_type);
if(is_same_type)
{
// test if the both images have the same size.
const bool is_same_size = (image1->size() == image2->size());
if(is_same_size)
{
using image_t = itk::Image<std::int16_t, 3>;
image_t::Pointer itk_image1 = io::itk::move_to_itk<image_t>(image1.get_shared());
SIGHT_ASSERT("Unable to convert data::image to itkImage", itk_image1);
image_t::Pointer itk_image2 = io::itk::move_to_itk<image_t>(image2.get_shared());
SIGHT_ASSERT("Unable to convert data::image to itkImage", itk_image2);
image_t::Pointer output;
//Create filter
using subtract_image_filter_t = itk::SubtractImageFilter<image_t, image_t, image_t>;
subtract_image_filter_t::Pointer filter;
filter = subtract_image_filter_t::New();
assert(filter);
filter->SetInput1(itk_image1);
filter->SetInput2(itk_image2);
filter->Update();
output = filter->GetOutput();
assert(output->GetSource());
io::itk::move_from_itk<image_t>(output, image_result.get_shared(), true);
auto sig = image_result->signal<data::object::modified_signal_t>(data::object::MODIFIED_SIG);
sig->async_emit();
}
else
{
sight::ui::dialog::message::show(
"Warning",
"Both images must have the same size.",
sight::ui::dialog::message::warning
);
}
}
else
{
sight::ui::dialog::message::show(
"Warning",
"Both Images must have signed short as type.",
sight::ui::dialog::message::warning
);
}
}
//------------------------------------------------------------------------------
} // namespace sight::module::filter::image
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