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diff --git a/src/Utilities.cpp b/src/Utilities.cpp
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+/*
+-----------------------------------------------------------------------
+Copyright 2012 iMinds-Vision Lab, University of Antwerp
+
+Contact: astra@ua.ac.be
+Website: http://astra.ua.ac.be
+
+
+This file is part of the
+All Scale Tomographic Reconstruction Antwerp Toolbox ("ASTRA Toolbox").
+
+The ASTRA Toolbox 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.
+
+The ASTRA Toolbox 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 the ASTRA Toolbox. If not, see <http://www.gnu.org/licenses/>.
+
+-----------------------------------------------------------------------
+$Id$
+*/
+
+#include "astra/Utilities.h"
+
+using namespace std;
+using namespace astra;
+
+//-----------------------------------------------------------------------------
+// Trim Whitespace Characters
+void StringUtil::trim(std::string& _sString, bool _bLeft, bool _bRight)
+{
+	// trim right
+	if (_bRight)
+		_sString.erase(_sString.find_last_not_of(" \t\r") + 1); 
+
+	// trim left
+	if (_bLeft)
+		_sString.erase(0, _sString.find_first_not_of(" \t\r")); 
+}
+//-----------------------------------------------------------------------------
+// Split String
+vector<string> StringUtil::split(const string& _sString, const string& _sDelims)
+{
+	std::vector<string> ret;
+
+	size_t start, pos;
+	start = 0;
+	do {
+		pos = _sString.find_first_of(_sDelims, start);
+		if (pos == start) {
+			// Do nothing
+			start = pos + 1;
+		} else if (pos == string::npos) {
+			// Copy the rest of the string
+			ret.push_back(_sString.substr(start));
+			break;
+		} else {
+			// Copy up to newt delimiter
+			ret.push_back(_sString.substr(start, pos - start));
+			start = pos + 1;
+		}
+
+		// Parse up to next real data (in case there are two delims after each other)
+		start = _sString.find_first_not_of(_sDelims, start);
+	} while (pos != string::npos);
+
+	return ret;
+}
+//-----------------------------------------------------------------------------
+// Cast string to int
+bool StringUtil::toInt(const string& _sString, int& _iValue)
+{
+	std::istringstream ss(_sString);
+	ss >> _iValue;
+	return !ss.fail();
+}
+//-----------------------------------------------------------------------------
+// Cast string to float
+bool StringUtil::toFloat32(const string& _sString, float32& _fValue)
+{
+	std::istringstream ss(_sString);
+	ss >> _fValue;
+	return !ss.fail();
+}
+//-----------------------------------------------------------------------------
+// Convert string to Lower Case
+void StringUtil::toLowerCase(std::string& _sString)
+{
+	std::transform(_sString.begin(),
+				   _sString.end(),		
+				   _sString.begin(),
+				   ::tolower);
+}
+//-----------------------------------------------------------------------------    
+// Convert string to Upper Case
+void StringUtil::toUpperCase(std::string& _sString) 
+{
+	std::transform(_sString.begin(),
+				   _sString.end(),
+				   _sString.begin(),
+				   ::toupper);
+}
+//-----------------------------------------------------------------------------
+
+
+
+
+//-----------------------------------------------------------------------------    
+// Get Extension
+string FileSystemUtil::getExtension(string& _sFilename)
+{
+	string sExtension = "";
+	for (int i = _sFilename.length() - 1; 0 < i; i--) {
+		if (_sFilename[i] == '.') {
+			std::transform(sExtension.begin(),sExtension.end(),sExtension.begin(),::tolower);
+			return sExtension;
+		}
+		sExtension = _sFilename[i] + sExtension;
+	}
+	return "";
+}
+//-----------------------------------------------------------------------------