OpenCV Machine Learning 之正态贝叶斯分类器源代码分析（Normal Bayes Classifier）

1.  CvNormalBayesClassifier的 类 定 义

在ml.hpp中有以下类定义：

 class CV_EXPORTS_W CvNormalBayesClassifier : public CvStatModel
 {
 public:
     CV_WRAP CvNormalBayesClassifier();
     virtual ~CvNormalBayesClassifier();

     CvNormalBayesClassifier( const CvMat* trainData, const CvMat* responses,
         const CvMat* varIdx=0, const CvMat* sampleIdx=0 );

     virtual bool train( const CvMat* trainData, const CvMat* responses,
         const CvMat* varIdx = 0, const CvMat* sampleIdx=0, bool update=false );

     virtual float predict( const CvMat* samples, CV_OUT CvMat* results=0 ) const;
     CV_WRAP virtual void clear();

     CV_WRAP CvNormalBayesClassifier( const cv::Mat& trainData, const cv::Mat& responses,
                             const cv::Mat& varIdx=cv::Mat(), const cv::Mat& sampleIdx=cv::Mat() );
     CV_WRAP virtual bool train( const cv::Mat& trainData, const cv::Mat& responses,
                        const cv::Mat& varIdx = cv::Mat(), const cv::Mat& sampleIdx=cv::Mat(),
                        bool update=false );
     CV_WRAP virtual float predict( const cv::Mat& samples, CV_OUT cv::Mat* results=0 ) const;

     virtual void write( CvFileStorage* storage, const char* name ) const;
     virtual void read( CvFileStorage* storage, CvFileNode* node );

 protected:
     int     var_count, var_all;
     CvMat*  var_idx;
     CvMat*  cls_labels;
     CvMat** count;
     CvMat** sum;
     CvMat** productsum;
     CvMat** avg;
     CvMat** inv_eigen_values;
     CvMat** cov_rotate_mats;
     CvMat*  c;
 };