source: foam/trunk/vision/src/Classifier.cpp @ 86

Revision 86, 1.3 KB checked in by dave, 10 years ago (diff)

lots of code added - pca implementation for eigenfaces and lda started

Line 
1// Copyright (C) 2009 foam
2//
3// This program is free software; you can redistribute it and/or modify
4// it under the terms of the GNU General Public License as published by
5// the Free Software Foundation; either version 2 of the License, or
6// (at your option) any later version.
7//
8// This program is distributed in the hope that it will be useful,
9// but WITHOUT ANY WARRANTY; without even the implied warranty of
10// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11// GNU General Public License for more details.
12//
13// You should have received a copy of the GNU General Public License
14// along with this program; if not, write to the Free Software
15// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
16
17#include "Classifier.h"
18
19using namespace std;
20
21Classifier::Classifier(unsigned int FeatureSize) :
22m_FeatureSize(FeatureSize),
23m_Mean(FeatureSize)
24{
25}
26
27Classifier::~Classifier()
28{
29}
30
31void Classifier::AddFeature(int group, const Vector<float> &v)
32{
33        assert(v.Size()==m_FeatureSize);
34        m_Features[group].push_back(v);
35}
36
37void Classifier::CalcMean()
38{
39        m_Mean.Zero();
40       
41        for (FeatureMap::iterator i=m_Features.begin();
42                i!=m_Features.end(); ++i)
43        {
44                for (FeatureVec::iterator vi = i->second.begin(); vi!=i->second.end(); ++vi)
45                {
46                        m_Mean+=*vi;
47                }
48        }
49       
50        m_Mean/=m_FeatureSize;
51}
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