diff --git a/vcg/math/histogram.h b/vcg/math/histogram.h
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+++ b/vcg/math/histogram.h
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+/****************************************************************************
+* VCGLib                                                            o o     *
+* Visual and Computer Graphics Library                            o     o   *
+*                                                                _   O  _   *
+* Copyright(C) 2004                                                \/)\/    *
+* Visual Computing Lab                                            /\/|      *
+* ISTI - Italian National Research Council                           |      *
+*                                                                    \      *
+* All rights reserved.                                                      *
+*                                                                           *
+* 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 PURPOSE.  See the             *
+* GNU General Public License (http://www.gnu.org/licenses/gpl.txt)          *
+* for more details.                                                         *
+*                                                                           *
+****************************************************************************/
+/****************************************************************************
+  History
+
+$Log: not supported by cvs2svn $
+
+****************************************************************************/
+
+#ifndef __VCG_HISTOGRAM
+#define __VCG_HISTOGRAM
+//#include <vcg/Box2.h>
+namespace vcg {
+
+/**
+
+*/
+template <class ScalarType> 
+class Histogram {
+public:
+  std::vector <int> H; /// counters for bins
+	std::vector <ScalarType> R; /// Range for bins ( 
+	ScalarType minv;
+	ScalarType maxv;
+	int n;  // numero di intervalli
+	int cnt; // numero di campioni accumulati
+	ScalarType avg;
+	ScalarType rms;
+
+	void SetRange(ScalarType _minv, ScalarType _maxv, int _n);
+	void SetRange(ScalarType _minv, ScalarType _maxv, int _n, ScalarType gamma);
+	int Interize(ScalarType val);
+	void Add(ScalarType v);
+	ScalarType Percentile(ScalarType frac) const;
+	ScalarType Avg();
+	ScalarType RMS();
+	ScalarType Variance();
+	ScalarType StandardDeviation();
+	void Clear();
+};
+
+template <class ScalarType> 
+void Histogram<ScalarType> ::Clear()
+{
+	H.clear();
+	R.clear();
+	cnt=0;
+	avg=0;
+	rms=0;
+	n=0;
+	minv=0;
+	maxv=1;
+}
+template <class ScalarType> 
+void Histogram<ScalarType>::SetRange(ScalarType _minv, ScalarType _maxv, int _n)
+{
+	Clear();
+	minv=_minv;maxv=_maxv;n=_n;
+	H.resize(n+1);
+	fill(H.begin(),H.end(),0);
+	R.resize(n+1);
+	ScalarType dlt=(maxv-minv)/n;
+	for(int i=0;i<n+1;++i)
+		R[i]=minv+dlt*i;
+}
+
+template <class ScalarType> 
+void Histogram<ScalarType>::SetRange(ScalarType _minv, ScalarType _maxv, int _n, ScalarType gamma)
+{
+	Clear();
+	minv=_minv;maxv=_maxv;n=_n;
+	H.resize(n);
+	fill(H.begin(),H.end(),0);
+	R.resize(n+1);
+	double dlt=(maxv-minv);
+	for(int i=0;i<n+1;++i)
+		R[i]=minv+dlt*pow(double(i)/n,gamma);
+}
+template <class ScalarType> 
+int Histogram<ScalarType>::Interize(ScalarType val) 
+{
+	int pos = lower_bound(R.begin(),R.end(),val) - R.begin() - 1;
+	if(pos>n) pos=n;
+	return pos;
+}
+
+template <class ScalarType> 
+void Histogram<ScalarType>::Add(ScalarType v){
+	int pos= lower_bound(R.begin(),R.end(),v)-R.begin()-1;
+	if(pos<=n){
+		++H[pos];
+		++cnt;
+		avg+=v;
+		rms += v*v;
+	}
+}
+}// end namespace
+#endif	
\ No newline at end of file