n_svd.h

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/* $Id: n_svd.h 18278 2014-11-25 01:42:10Z ksimek $ */
/* {{{======================================================================= *
 |
 |  Copyright (c) 2011 members of the University of Arizona Vision Group
 |
 | Personal and educational use of this code is granted, provided that this
 | header is kept intact, and that the authorship is not misrepresented, that
 | its use is acknowledged in publications, and relevant papers are cited.
 |
 | For other use contact the author (kobus AT cs DOT arizona DOT edu).
 |
 | Please note that the code in this file has not necessarily been adequately
 | tested. Naturally, there is no guarantee of performance, support, or
 | fitness for any particular task. Nonetheless, I am interested in hearing
 | about problems that you encounter.
 * ====================================================================== }}}*/


#include <m_cpp/m_matrix.h>
#include <m_cpp/m_vector.h>

#ifndef KJB_CPP_N_SVD_H_UOFARIZONAVISION
#define KJB_CPP_N_SVD_H_UOFARIZONAVISION

namespace kjb {


struct Svd {
    Vector  vec_d;  
    Matrix  mat_u,  
            mat_vt; 
    int     rank;   

    void compute_svd( const kjb_c::Matrix* pa );
    

    void compute_svd( const Matrix& mat_a );
    

    Svd( const Matrix& mat_a );
    

    Svd( const kjb_c::Matrix* pa );

    void swap( Svd& other );
    

    const Matrix& u() const;
    

    const Vector& d() const;
    

    const Matrix& vt() const;

    Matrix reconstruction() const;
};


} // namespace kjb

#endif