Class SVD

Singular Value Decomposition class

Inheritance
System.Object
DisposableObject
DisposableCvObject
SVD
Implements
Inherited Members
Namespace: OpenCvSharp
Assembly: OpenCvSharp.dll
Syntax
public class SVD : DisposableCvObject, ICvPtrHolder

Constructors

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SVD()

the default constructor

Declaration
public SVD()
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SVD(InputArray, SVD.Flags)

the constructor that performs SVD

Declaration
public SVD(InputArray src, SVD.Flags flags = SVD.Flags.None)
Parameters
Type Name Description
InputArray src
SVD.Flags flags

Methods

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BackSubst(InputArray, InputArray, InputArray, InputArray, OutputArray)

performs back substitution

Declaration
public static void BackSubst(InputArray w, InputArray u, InputArray vt, InputArray rhs, OutputArray dst)
Parameters
Type Name Description
InputArray w
InputArray u
InputArray vt
InputArray rhs
OutputArray dst
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BackSubst(InputArray, OutputArray)

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

Declaration
public void BackSubst(InputArray rhs, OutputArray dst)
Parameters
Type Name Description
InputArray rhs
OutputArray dst
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Compute(InputArray, OutputArray, OutputArray, OutputArray, SVD.Flags)

decomposes matrix and stores the results to user-provided matrices

Declaration
public static void Compute(InputArray src, OutputArray w, OutputArray u, OutputArray vt, SVD.Flags flags = SVD.Flags.None)
Parameters
Type Name Description
InputArray src
OutputArray w
OutputArray u
OutputArray vt
SVD.Flags flags
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Compute(InputArray, OutputArray, SVD.Flags)

computes singular values of a matrix

Declaration
public static void Compute(InputArray src, OutputArray w, SVD.Flags flags = SVD.Flags.None)
Parameters
Type Name Description
InputArray src
OutputArray w
SVD.Flags flags
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DisposeUnmanaged()

Releases unmanaged resources

Declaration
protected override void DisposeUnmanaged()
Overrides
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Run(InputArray, SVD.Flags)

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

Declaration
public SVD Run(InputArray src, SVD.Flags flags = SVD.Flags.None)
Parameters
Type Name Description
InputArray src
SVD.Flags flags
Returns
Type Description
SVD
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SolveZ(InputArray, OutputArray)

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

Declaration
public static void SolveZ(InputArray src, OutputArray dst)
Parameters
Type Name Description
InputArray src
OutputArray dst
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U()

eigenvalues of the covariation matrix

Declaration
public Mat U()
Returns
Type Description
Mat
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Vt()

mean value subtracted before the projection and added after the back projection

Declaration
public Mat Vt()
Returns
Type Description
Mat
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W()

eigenvalues of the covariation matrix

Declaration
public Mat W()
Returns
Type Description
Mat

Implements