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/************************************************************************
*
* Copyright (C) 2009-2024 IRCAD France
* Copyright (C) 2012-2019 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/>.
*
***********************************************************************/
#pragma once
#include <data/object.hpp>
#include <service/filter.hpp>
namespace sight::module::filter::image
{
/**
* @brief Apply a threshold on an image.
*
* This Service needs two image: the source and the target image.
*
* @section XML XML Configuration
*
* @code{.xml}
<service type="sight::module::filter::image::threshold">
<in key="source" uid="..." />
<out key="target" uid="..." />
<config>
<threshold>50</threshold>
</config>
</service>
@endcode
*
* @subsection Input Input:
* - \b source [sight::data::object]: Source image, can be a data::image_series or a data::image.
* @subsection Output Output:
* - \b target [sight::data::object]: Target image (ie the filtered image),
* if the type of the source is a data::image_series then target will be a data::image_series,
* otherwise it will be an simple data::image.
* @subsection Configuration Configuration
* - \b threshold : Specify the desired threshold used in filter
* (Pixels with value lower than this value will be set to 0,
* otherwise it will be set to the maximum value of the pixel type of the image.).
*/
class threshold : public service::filter
{
public:
SIGHT_DECLARE_SERVICE(threshold, sight::service::filter);
threshold() noexcept;
~threshold() noexcept override = default;
protected:
void starting() override;
void stopping() override;
/// Configure the service.
void configuring() override;
/// Apply the threshold.
void updating() override;
private:
/// Threshold value used in filter
double m_threshold {50.0};
static constexpr std::string_view IMAGE_IN = "source";
static constexpr std::string_view IMAGE_OUT = "target";
sight::data::ptr<sight::data::object, sight::data::access::in> m_source {this, IMAGE_IN};
sight::data::ptr<sight::data::object, sight::data::access::out> m_target {this, IMAGE_OUT};
};
} // namespace sight::module::filter::image
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