modules/shape/src/hist

/* [<][>][^][v][top][bottom][index][help] */
This source file includes following definitions.
setNDummies
getNDummies
setDefaultCost
getDefaultCost
setNormFlag
getNormFlag
write
read
buildCostMatrix
createNormHistogramCostExtractor
setNDummies
getNDummies
setDefaultCost
getDefaultCost
setNormFlag
getNormFlag
write
read
buildCostMatrix
createEMDHistogramCostExtractor
setNDummies
getNDummies
setDefaultCost
getDefaultCost
write
read
buildCostMatrix
createChiHistogramCostExtractor
setNDummies
getNDummies
setDefaultCost
getDefaultCost
write
read
buildCostMatrix
createEMDL1HistogramCostExtractor
/*M///////////////////////////////////////////////////////////////////////////////////////
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//                        Intel License Agreement
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#include "precomp.hpp"

namespace cv
{

/*!  */
class NormHistogramCostExtractorImpl : public NormHistogramCostExtractor
{
public:
    /* Constructors */
    NormHistogramCostExtractorImpl(int _flag, int _nDummies, float _defaultCost)
    {
        flag=_flag;
        nDummies=_nDummies;
        defaultCost=_defaultCost;
        name_ = "HistogramCostExtractor.NOR";
    }

    /* Destructor */
    ~NormHistogramCostExtractorImpl()
    {
    }

    //! the main operator
    virtual void buildCostMatrix(InputArray descriptors1, InputArray descriptors2, OutputArray costMatrix);

    //! Setters/Getters
    void setNDummies(int _nDummies)
    {
        nDummies=_nDummies;
    }

    int getNDummies() const
    {
        return nDummies;
    }

    void setDefaultCost(float _defaultCost)
    {
        defaultCost=_defaultCost;
    }

    float getDefaultCost() const
    {
        return defaultCost;
    }

    virtual void setNormFlag(int _flag)
    {
        flag=_flag;
    }

    virtual int getNormFlag() const
    {
        return flag;
    }

    //! write/read
    virtual void write(FileStorage& fs) const
    {
        fs << "name" << name_
           << "flag" << flag
           << "dummies" << nDummies
           << "default" << defaultCost;
    }

    virtual void read(const FileNode& fn)
    {
        CV_Assert( (String)fn["name"] == name_ );
        flag = (int)fn["flag"];
        nDummies = (int)fn["dummies"];
        defaultCost = (float)fn["default"];
    }

private:
    int flag;
    int nDummies;
    float defaultCost;

protected:
    String name_;
};

void NormHistogramCostExtractorImpl::buildCostMatrix(InputArray _descriptors1, InputArray _descriptors2, OutputArray _costMatrix)
{
    // size of the costMatrix with dummies //
    Mat descriptors1=_descriptors1.getMat();
    Mat descriptors2=_descriptors2.getMat();
    int costrows = std::max(descriptors1.rows, descriptors2.rows)+nDummies;
    _costMatrix.create(costrows, costrows, CV_32F);
    Mat costMatrix=_costMatrix.getMat();


    // Obtain copies of the descriptors //
    cv::Mat scd1 = descriptors1.clone();
    cv::Mat scd2 = descriptors2.clone();

    // row normalization //
    for(int i=0; i<scd1.rows; i++)
    {
        scd1.row(i)/=(sum(scd1.row(i))[0]+FLT_EPSILON);
    }
    for(int i=0; i<scd2.rows; i++)
    {
        scd2.row(i)/=(sum(scd2.row(i))[0]+FLT_EPSILON);
    }

    // Compute the Cost Matrix //
    for(int i=0; i<costrows; i++)
    {
        for(int j=0; j<costrows; j++)
        {
            if (i<scd1.rows && j<scd2.rows)
            {
                Mat columnDiff = scd1.row(i)-scd2.row(j);
                costMatrix.at<float>(i,j)=(float)norm(columnDiff, flag);
            }
            else
            {
                costMatrix.at<float>(i,j)=defaultCost;
            }
        }
    }
}

Ptr <HistogramCostExtractor> createNormHistogramCostExtractor(int flag, int nDummies, float defaultCost)
{
    return Ptr <HistogramCostExtractor>( new NormHistogramCostExtractorImpl(flag, nDummies, defaultCost) );
}

/*!  */
class EMDHistogramCostExtractorImpl : public EMDHistogramCostExtractor
{
public:
    /* Constructors */
    EMDHistogramCostExtractorImpl(int _flag, int _nDummies, float _defaultCost)
    {
        flag=_flag;
        nDummies=_nDummies;
        defaultCost=_defaultCost;
        name_ = "HistogramCostExtractor.EMD";
    }

    /* Destructor */
    ~EMDHistogramCostExtractorImpl()
    {
    }

    //! the main operator
    virtual void buildCostMatrix(InputArray descriptors1, InputArray descriptors2, OutputArray costMatrix);

    //! Setters/Getters
    void setNDummies(int _nDummies)
    {
        nDummies=_nDummies;
    }

    int getNDummies() const
    {
        return nDummies;
    }

    void setDefaultCost(float _defaultCost)
    {
        defaultCost=_defaultCost;
    }

    float getDefaultCost() const
    {
        return defaultCost;
    }

    virtual void setNormFlag(int _flag)
    {
        flag=_flag;
    }

    virtual int getNormFlag() const
    {
        return flag;
    }

    //! write/read
    virtual void write(FileStorage& fs) const
    {
        fs << "name" << name_
           << "flag" << flag
           << "dummies" << nDummies
           << "default" << defaultCost;
    }

    virtual void read(const FileNode& fn)
    {
        CV_Assert( (String)fn["name"] == name_ );
        flag = (int)fn["flag"];
        nDummies = (int)fn["dummies"];
        defaultCost = (float)fn["default"];
    }

private:
    int flag;
    int nDummies;
    float defaultCost;

protected:
    String name_;
};

void EMDHistogramCostExtractorImpl::buildCostMatrix(InputArray _descriptors1, InputArray _descriptors2, OutputArray _costMatrix)
{
    // size of the costMatrix with dummies //
    Mat descriptors1=_descriptors1.getMat();
    Mat descriptors2=_descriptors2.getMat();
    int costrows = std::max(descriptors1.rows, descriptors2.rows)+nDummies;
    _costMatrix.create(costrows, costrows, CV_32F);
    Mat costMatrix=_costMatrix.getMat();

    // Obtain copies of the descriptors //
    cv::Mat scd1=descriptors1.clone();
    cv::Mat scd2=descriptors2.clone();

    // row normalization //
    for(int i=0; i<scd1.rows; i++)
    {
        cv::Mat row = scd1.row(i);
        scd1.row(i)/=(sum(row)[0]+FLT_EPSILON);
    }
    for(int i=0; i<scd2.rows; i++)
    {
        cv::Mat row = scd2.row(i);
        scd2.row(i)/=(sum(row)[0]+FLT_EPSILON);
    }

    // Compute the Cost Matrix //
    for(int i=0; i<costrows; i++)
    {
        for(int j=0; j<costrows; j++)
        {
            if (i<scd1.rows && j<scd2.rows)
            {
                cv::Mat sig1(scd1.cols,2,CV_32F), sig2(scd2.cols,2,CV_32F);
                sig1.col(0)=scd1.row(i).t();
                sig2.col(0)=scd2.row(j).t();
                for (int k=0; k<sig1.rows; k++)
                {
                    sig1.at<float>(k,1)=float(k);
                }
                for (int k=0; k<sig2.rows; k++)
                {
                    sig2.at<float>(k,1)=float(k);
                }

                costMatrix.at<float>(i,j) = cv::EMD(sig1, sig2, flag);
            }
            else
            {
                costMatrix.at<float>(i,j) = defaultCost;
            }
        }
    }
}

Ptr <HistogramCostExtractor> createEMDHistogramCostExtractor(int flag, int nDummies, float defaultCost)
{
    return Ptr <HistogramCostExtractor>( new EMDHistogramCostExtractorImpl(flag, nDummies, defaultCost) );
}

/*!  */
class ChiHistogramCostExtractorImpl : public ChiHistogramCostExtractor
{
public:
    /* Constructors */
    ChiHistogramCostExtractorImpl(int _nDummies, float _defaultCost)
    {
        name_ = "HistogramCostExtractor.CHI";
        nDummies=_nDummies;
        defaultCost=_defaultCost;
    }

    /* Destructor */
    ~ChiHistogramCostExtractorImpl()
    {
    }

    //! the main operator
    virtual void buildCostMatrix(InputArray descriptors1, InputArray descriptors2, OutputArray costMatrix);

    //! setters / getters
    void setNDummies(int _nDummies)
    {
        nDummies=_nDummies;
    }

    int getNDummies() const
    {
        return nDummies;
    }

    void setDefaultCost(float _defaultCost)
    {
        defaultCost=_defaultCost;
    }

    float getDefaultCost() const
    {
        return defaultCost;
    }

    //! write/read
    virtual void write(FileStorage& fs) const
    {
        fs << "name" << name_
           << "dummies" << nDummies
           << "default" << defaultCost;
    }

    virtual void read(const FileNode& fn)
    {
        CV_Assert( (String)fn["name"] == name_ );
        nDummies = (int)fn["dummies"];
        defaultCost = (float)fn["default"];
    }

protected:
    String name_;
    int nDummies;
    float defaultCost;
};

void ChiHistogramCostExtractorImpl::buildCostMatrix(InputArray _descriptors1, InputArray _descriptors2, OutputArray _costMatrix)
{
    // size of the costMatrix with dummies //
    Mat descriptors1=_descriptors1.getMat();
    Mat descriptors2=_descriptors2.getMat();
    int costrows = std::max(descriptors1.rows, descriptors2.rows)+nDummies;
    _costMatrix.create(costrows, costrows, CV_32FC1);
    Mat costMatrix=_costMatrix.getMat();

    // Obtain copies of the descriptors //
    cv::Mat scd1=descriptors1.clone();
    cv::Mat scd2=descriptors2.clone();

    // row normalization //
    for(int i=0; i<scd1.rows; i++)
    {
        cv::Mat row = scd1.row(i);
        scd1.row(i)/=(sum(row)[0]+FLT_EPSILON);
    }
    for(int i=0; i<scd2.rows; i++)
    {
       cv::Mat row = scd2.row(i);
        scd2.row(i)/=(sum(row)[0]+FLT_EPSILON);
    }

    // Compute the Cost Matrix //
    for(int i=0; i<costrows; i++)
    {
        for(int j=0; j<costrows; j++)
        {
            if (i<scd1.rows && j<scd2.rows)
            {
                float csum = 0;
                for(int k=0; k<scd2.cols; k++)
                {
                    float resta=scd1.at<float>(i,k)-scd2.at<float>(j,k);
                    float suma=scd1.at<float>(i,k)+scd2.at<float>(j,k);
                    csum += resta*resta/(FLT_EPSILON+suma);
                }
                costMatrix.at<float>(i,j)=csum/2;
            }
            else
            {
                costMatrix.at<float>(i,j)=defaultCost;
            }
        }
    }
}

Ptr <HistogramCostExtractor> createChiHistogramCostExtractor(int nDummies, float defaultCost)
{
    return Ptr <HistogramCostExtractor>( new ChiHistogramCostExtractorImpl(nDummies, defaultCost) );
}

/*!  */
class EMDL1HistogramCostExtractorImpl : public EMDL1HistogramCostExtractor
{
public:
    /* Constructors */
    EMDL1HistogramCostExtractorImpl(int _nDummies, float _defaultCost)
    {
        name_ = "HistogramCostExtractor.CHI";
        nDummies=_nDummies;
        defaultCost=_defaultCost;
    }

    /* Destructor */
    ~EMDL1HistogramCostExtractorImpl()
    {
    }

    //! the main operator
    virtual void buildCostMatrix(InputArray descriptors1, InputArray descriptors2, OutputArray costMatrix);

    //! setters / getters
    void setNDummies(int _nDummies)
    {
        nDummies=_nDummies;
    }

    int getNDummies() const
    {
        return nDummies;
    }

    void setDefaultCost(float _defaultCost)
    {
        defaultCost=_defaultCost;
    }

    float getDefaultCost() const
    {
        return defaultCost;
    }

    //! write/read
    virtual void write(FileStorage& fs) const
    {
        fs << "name" << name_
           << "dummies" << nDummies
           << "default" << defaultCost;
    }

    virtual void read(const FileNode& fn)
    {
        CV_Assert( (String)fn["name"] == name_ );
        nDummies = (int)fn["dummies"];
        defaultCost = (float)fn["default"];
    }

protected:
    String name_;
    int nDummies;
    float defaultCost;
};

void EMDL1HistogramCostExtractorImpl::buildCostMatrix(InputArray _descriptors1, InputArray _descriptors2, OutputArray _costMatrix)
{
    // size of the costMatrix with dummies //
    Mat descriptors1=_descriptors1.getMat();
    Mat descriptors2=_descriptors2.getMat();
    int costrows = std::max(descriptors1.rows, descriptors2.rows)+nDummies;
    _costMatrix.create(costrows, costrows, CV_32F);
    Mat costMatrix=_costMatrix.getMat();

    // Obtain copies of the descriptors //
    cv::Mat scd1=descriptors1.clone();
    cv::Mat scd2=descriptors2.clone();

    // row normalization //
    for(int i=0; i<scd1.rows; i++)
    {
        cv::Mat row = scd1.row(i);
        scd1.row(i)/=(sum(row)[0]+FLT_EPSILON);
    }
    for(int i=0; i<scd2.rows; i++)
    {
        cv::Mat row = scd2.row(i);
        scd2.row(i)/=(sum(row)[0]+FLT_EPSILON);
    }

    // Compute the Cost Matrix //
    for(int i=0; i<costrows; i++)
    {
        for(int j=0; j<costrows; j++)
        {
            if (i<scd1.rows && j<scd2.rows)
            {
                cv::Mat sig1(scd1.cols,1,CV_32F), sig2(scd2.cols,1,CV_32F);
                sig1.col(0)=scd1.row(i).t();
                sig2.col(0)=scd2.row(j).t();
                costMatrix.at<float>(i,j) = cv::EMDL1(sig1, sig2);
            }
            else
            {
                costMatrix.at<float>(i,j) = defaultCost;
            }
        }
    }
}

Ptr <HistogramCostExtractor> createEMDL1HistogramCostExtractor(int nDummies, float defaultCost)
{
    return Ptr <HistogramCostExtractor>( new EMDL1HistogramCostExtractorImpl(nDummies, defaultCost) );
}

} // cv
/* [<][>][^][v][top][bottom][index][help] */
root/modules/shape/src/hist_cost.cpp

DEFINITIONS
