medical image analysis SVN (old)

/* -*- mona-c++  -*-
 *
 * Copyright (c) Leipzig, Madrid 2004 - 2009
 * Max-Planck-Institute for Human Cognitive and Brain Science	
 * Max-Planck-Institute for Evolutionary Anthropology 
 * BIT, ETSI Telecomunicacion, UPM
 *
 * This program 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 2 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 PUcRPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <iostream>
#include <fstream>
#include <stdexcept>

#include <mia/core/probmap.hh>

NS_MIA_BEGIN 
using namespace std; 

static const string pipe_console("-"); 
static const string map_signature("#probability-map"); 
static const string label_map_signature("#label-map"); 


CProbabilityVector::CProbabilityVector()
{
}

CProbabilityVector::CProbabilityVector(size_t nClass, size_t nElm):
	std::vector<CDoubleVector>(nClass, CDoubleVector(nElm))
{
}

CProbabilityVector::CProbabilityVector(const std::string& in_fname)
{
	if (in_fname == pipe_console) {
		do_load(cin); 
	}else {
		ifstream instr(in_fname.c_str()); 
		do_load(instr); 
	}
}
	
bool CProbabilityVector::save(const std::string& out_fname) const
{
	if (out_fname == pipe_console) {
		return do_save(cout); 
	}else {
		ofstream outstr(out_fname.c_str()); 
		return do_save(outstr); 
	}
}

bool CProbabilityVector::do_save(ostream& os) const
{
	os << map_signature <<"\n"; 
	os << size() << " " << (*this)[0].size() << '\n'; 
	
	for (size_t i = 0; i < (*this)[0].size(); ++i) {
		for (size_t k = 0; k < size(); ++k) {
			os << (*this)[k][i] << " "; 
		}
		os <<'\n'; 
	}
	return os.good(); 
}

void CProbabilityVector::do_load(istream& is)
{
	
	string buf; 
	is >> buf; 
	size_t hsize, nclasses; 
	
	if (buf != map_signature) {
		throw invalid_argument(string("input file is not a probability map: signature:'") + buf + string("'")); 
	}
	
	is >> nclasses >> hsize; 
	
	if (!is.good())
		throw runtime_error("error reading from input file");
	
	resize(nclasses); 
	for (size_t k = 0; k < size(); ++k) {
		(*this)[k] = CDoubleVector(hsize); 
	}
	

	for (size_t i = 0; i < hsize; ++i) {
		for (size_t k = 0; k < size(); ++k) {
			is >> (*this)[k][i]; 
		}
	}
	if (!is.good())
		throw runtime_error("error reading from input file");
	
}

EXPORT_CORE bool operator == (const CProbabilityVector& a, const CProbabilityVector& b)
{
	if ( a.size() != b.size() )
		return false; 

	CProbabilityVector::const_iterator ai = a.begin();
	CProbabilityVector::const_iterator ae = a.end();
	CProbabilityVector::const_iterator bi = b.begin();

	while (ai != ae)  {
		if (*ai++ != *bi++) 
			return false; 
	}
	return true; 
}


CLabelMap::CLabelMap()
{
}

CLabelMap::CLabelMap(const std::string& in_fname)
{
	if (in_fname == pipe_console) {
		do_load(cin); 
	}else {
		ifstream instr(in_fname.c_str()); 
		do_load(instr); 
	}
}

bool CLabelMap::save(const std::string& out_fname) const 
{
	if (out_fname == pipe_console) {
		return do_save(cout); 
	}else {
		ofstream outstr(out_fname.c_str()); 
		return do_save(outstr); 
	}
}


bool CLabelMap::do_save(ostream& os) const 
{
	os << label_map_signature << "\n"; 
	os << size()<<'\n';
	
	for (CLabelMap::const_iterator im = begin(), em = end();
	     im != em; ++im) {
		os << im->first << ' ' << im->second << '\n'; 
	}	
	return os.good();  
}

void CLabelMap::do_load(istream& is)
{
	string buf; 
	is >> buf; 
	size_t hsize; 
	
	if (buf != label_map_signature) {
		throw invalid_argument(string("input file is not a label map: signature:'") + buf + string("'")); 
	}
	
	is >> hsize; 
	
	if (!is.good())
		throw runtime_error("error reading from input file");
	

	size_t src, trgt; 
	
	for (size_t i = 0; i < hsize; ++i) {
		is >> src >> trgt; 
		(*this)[src] = trgt; 
	}
	if (!is.good())
		throw runtime_error("error reading from input file");
}

EXPORT_CORE bool operator == (const CLabelMap& a, const CLabelMap& b)
{
	if (a.size() != b.size())
		return false; 
	
	CLabelMap::const_iterator ai = a.begin(); 
	CLabelMap::const_iterator bi = b.begin(); 
	CLabelMap::const_iterator ae = a.end(); 

	while (ai != ae) {
		if (ai->first != bi->first ||
		    ai->second != bi->second)
			return false; 
		++ai; 
		++bi; 
	}
	return true; 
}


NS_MIA_END