org.bytedeco.javacpp

Class opencv_core.SVD

java.lang.Object

org.bytedeco.javacpp.Pointer

org.bytedeco.javacpp.opencv_core.SVD

Enclosing class:

opencv_core

public static class opencv_core.SVD
extends Pointer

Singular Value Decomposition class The class is used to compute Singular Value Decomposition of a floating-point matrix and then use it to solve least-square problems, under-determined linear systems, invert matrices, compute condition numbers etc. For a bit faster operation you can pass flags=SVD::MODIFY_A|... to modify the decomposed matrix when it is not necessarily to preserve it. If you want to compute condition number of a matrix or absolute value of its determinant - you do not need SVD::u or SVD::vt, so you can pass flags=SVD::NO_UV|... . Another flag SVD::FULL_UV indicates that the full-size SVD::u and SVD::vt must be computed, which is not necessary most of the time.

Nested Class Summary

Nested classes/interfaces inherited from class org.bytedeco.javacpp.Pointer

Pointer.CustomDeallocator, Pointer.Deallocator, Pointer.NativeDeallocator

Field Summary

Fields

Modifier and Type	Field and Description
static int	FULL_UV enum cv::SVD::
static int	MODIFY_A enum cv::SVD::
static int	NO_UV enum cv::SVD::

Fields inherited from class org.bytedeco.javacpp.Pointer

address, capacity, limit, position

Constructor Summary

Constructors

Constructor and Description
opencv_core.SVD() the default constructor
opencv_core.SVD(int size)
opencv_core.SVD(opencv_core.Mat src)
opencv_core.SVD(opencv_core.Mat src, int flags) the constructor that performs SVD
opencv_core.SVD(Pointer p)

Method Summary

Methods

Modifier and Type	Method and Description
opencv_core.SVD	apply(opencv_core.Mat src)
opencv_core.SVD	apply(opencv_core.Mat src, int flags) the operator that performs SVD.
void	backSubst(opencv_core.Mat rhs, opencv_core.Mat dst) performs back substitution, so that dst is the solution or pseudo-solution of m*dst = rhs, where m is the decomposed matrix
static void	backSubst(opencv_core.Mat w, opencv_core.Mat u, opencv_core.Mat vt, opencv_core.Mat rhs, opencv_core.Mat dst) performs back substitution
static void	compute(opencv_core.Mat src, opencv_core.Mat w)
static void	compute(opencv_core.Mat src, opencv_core.Mat w, int flags) computes singular values of a matrix
static void	compute(opencv_core.Mat src, opencv_core.Mat w, opencv_core.Mat u, opencv_core.Mat vt)
static void	compute(opencv_core.Mat src, opencv_core.Mat w, opencv_core.Mat u, opencv_core.Mat vt, int flags) decomposes matrix and stores the results to user-provided matrices
opencv_core.SVD	position(int position)
static void	solveZ(opencv_core.Mat src, opencv_core.Mat dst) finds dst = arg min_{|dst|=1} |m*dst|
opencv_core.Mat	u()
opencv_core.SVD	u(opencv_core.Mat u)
opencv_core.Mat	vt()
opencv_core.SVD	vt(opencv_core.Mat vt)
opencv_core.Mat	w()
opencv_core.SVD	w(opencv_core.Mat w)

Methods inherited from class org.bytedeco.javacpp.Pointer

address, asBuffer, asByteBuffer, capacity, capacity, deallocate, deallocate, deallocateReferences, deallocator, deallocator, equals, fill, hashCode, isNull, limit, limit, memchr, memcmp, memcpy, memmove, memset, offsetof, position, put, setNull, sizeof, toString, withDeallocator, zero

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

MODIFY_A

public static final int MODIFY_A

enum cv::SVD::

See Also:

Constant Field Values

NO_UV

public static final int NO_UV

enum cv::SVD::

See Also:

Constant Field Values

FULL_UV

public static final int FULL_UV

enum cv::SVD::

See Also:

Constant Field Values

Constructor Detail

opencv_core.SVD

public opencv_core.SVD(Pointer p)

opencv_core.SVD

public opencv_core.SVD(int size)

opencv_core.SVD

public opencv_core.SVD()

the default constructor

opencv_core.SVD

public opencv_core.SVD(opencv_core.Mat src,
               int flags)

the constructor that performs SVD

opencv_core.SVD

public opencv_core.SVD(opencv_core.Mat src)

Method Detail

position

public opencv_core.SVD position(int position)

Overrides:

position in class Pointer

apply

public opencv_core.SVD apply(opencv_core.Mat src,
                    int flags)

the operator that performs SVD. The previously allocated SVD::u, SVD::w are SVD::vt are released.

apply

public opencv_core.SVD apply(opencv_core.Mat src)

compute

public static void compute(opencv_core.Mat src,
           opencv_core.Mat w,
           opencv_core.Mat u,
           opencv_core.Mat vt,
           int flags)

decomposes matrix and stores the results to user-provided matrices

compute

public static void compute(opencv_core.Mat src,
           opencv_core.Mat w,
           opencv_core.Mat u,
           opencv_core.Mat vt)

compute

public static void compute(opencv_core.Mat src,
           opencv_core.Mat w,
           int flags)

computes singular values of a matrix

compute

public static void compute(opencv_core.Mat src,
           opencv_core.Mat w)

backSubst

public static void backSubst(opencv_core.Mat w,
             opencv_core.Mat u,
             opencv_core.Mat vt,
             opencv_core.Mat rhs,
             opencv_core.Mat dst)

performs back substitution

solveZ

public static void solveZ(opencv_core.Mat src,
          opencv_core.Mat dst)

finds dst = arg min_{|dst|=1} |m*dst|

backSubst

public void backSubst(opencv_core.Mat rhs,
             opencv_core.Mat dst)

performs back substitution, so that dst is the solution or pseudo-solution of m*dst = rhs, where m is the decomposed matrix

u

public opencv_core.Mat u()

u

public opencv_core.SVD u(opencv_core.Mat u)

w

public opencv_core.Mat w()

w

public opencv_core.SVD w(opencv_core.Mat w)

vt

public opencv_core.Mat vt()

vt

public opencv_core.SVD vt(opencv_core.Mat vt)