File: 3dforce.cc

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/* -*- mia-c++  -*-
 *
 * This file is part of MIA - a toolbox for medical image analysis 
 * Copyright (c) Leipzig, Madrid 1999-2014 Gert Wollny
 *
 * MIA is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program 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 General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with MIA; if not, see <http://www.gnu.org/licenses/>.
 *
 */

#include <boost/algorithm/minmax_element.hpp>
#include <sstream>
#include <iomanip>

#include <mia/core.hh>
#include <mia/3d/cost.hh>
#include <mia/3d.hh>

NS_MIA_USE
using namespace boost;
using namespace std;

const SProgramDescription g_description = {
	{pdi_group, "Registration, Comparison, and Transformation of 3D images"}, 

	{pdi_short, "Evaluate the registration force between two 3D images."}, 

	{pdi_description, "This program is used to create an image comprising the pixel-wise norm "
	 "of the ggradient of a given cost function."}, 

	{pdi_example_descr, 
	 "Evaluate the weigtes sum of SSD between src.v and ref.v and store the result in forcenorm.v."}, 

	{pdi_example_code, "-i src.v -r ref.v -c ssd -o forcenorm.v"}
}; 


struct FVectorNorm {

	FVectorNorm():m_max_norm(0.0f) {
	}

	float operator ()(const C3DFVector& v) {
		float n = v.norm();
		if (m_max_norm < n)
			m_max_norm = n;
		return n;
	}
	float get_max()const {
		return m_max_norm;
	}
private:
	float m_max_norm;
};

int do_main(int argc, char **argv)
{
	CCmdOptionList options(g_description);
	string src_filename;
	string out_filename;
	string ref_filename;
	P3DImageCost cost; 

	const auto& imageio = C3DImageIOPluginHandler::instance();

	options.add(make_opt( src_filename, "src-file", 'i', "input image", CCmdOptionFlags::required_input, &imageio));
	options.add(make_opt( ref_filename, "ref-file", 'r', "output force norm image", CCmdOptionFlags::required_input, &imageio));
	options.add(make_opt( out_filename, "out-file", 'o', "reference image", CCmdOptionFlags::required_output, &imageio));
	options.add(make_opt( cost, "ssd", "cost", 'c', "cost function to use"));

	if (options.parse(argc, argv) != CCmdOptionList::hr_no)
		return EXIT_SUCCESS; 


	typedef C3DImageIOPluginHandler::Instance::PData PImageVector;

	PImageVector source    = imageio.load(src_filename);
	PImageVector ref    = imageio.load(ref_filename);

	if (!source || source->empty()) {
		throw invalid_argument(string("no image found in ") + src_filename);
	}
	if (!ref || ref->empty())
		throw invalid_argument(string("no image found in ") + ref_filename);

	C3DFVectorfield forcefield((*source->begin())->get_size());
	cost->set_reference(**ref->begin());  
	cvmsg() << "Cost = " << cost->evaluate_force(**source->begin(),forcefield) << "\n"; 

	C3DFImage *presult = new C3DFImage(forcefield.get_size());
	P3DImage result(presult);

	FVectorNorm vnorm;
	transform(forcefield.begin(), forcefield.end(), presult->begin(), vnorm);

	cvmsg() << "max norm: " << vnorm.get_max() << "\n";

	C3DImageIOPluginHandler::Instance::Data vout;
	vout.push_back(result);

	imageio.save(out_filename, vout);

	return EXIT_SUCCESS;
}


#include <mia/internal/main.hh>
MIA_MAIN(do_main);