DoubleDWT Class

This class represents a double precision discrete wavelet transform. It supports both single step forward and reverse DWT's and multilevel signal deconstruction and reconstruction. Details thresholding at any level and threshold calculations are also supported.

Inheritance Hierarchy

SystemObject
CenterSpace.NMath.CoreDiscreteWaveletTransform
CenterSpace.NMath.CoreDoubleDWT

Namespace: CenterSpace.NMath.Core
Assembly: NMath (in NMath.dll) Version: 7.4

Syntax

C++

Copy

[SerializableAttribute]
public class DoubleDWT : DiscreteWaveletTransform, ICloneable

<SerializableAttribute>
Public Class DoubleDWT
	Inherits DiscreteWaveletTransform
	Implements ICloneable

[SerializableAttribute]
public ref class DoubleDWT : public DiscreteWaveletTransform, 
	ICloneable

[<SerializableAttribute>]
type DoubleDWT = 
    class
        inherit DiscreteWaveletTransform
        interface ICloneable
    end

The DoubleDWT type exposes the following members.

Constructors

	Name	Description
	DoubleDWT(DoubleDWT)	Creates a deep copy of this discrete wavelet transform object.
	DoubleDWT(DoubleWavelet)	Creates a discrete wavelet transform class using the given wavelet and the default periodic padding edge mode.
	DoubleDWT(Double, DoubleWavelet)	Creates a discrete wavelet transform class using the given wavelet and data with the default periodic padding edge mode.
	DoubleDWT(Double, DoubleWavelet, DiscreteWaveletTransformWaveletMode)	Creates a discrete wavelet transform class using the given wavelet and edge handeling mode.

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Properties

	Name	Description
	mode	The current wavelet signal edge management mode. (Inherited from DiscreteWaveletTransform)
	Signal	Gets and Sets the signal data to be transformed.
	Wavelet	The assigned wavelet.

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Methods

	Name	Description
	Clone	Returns a copy of this object.
	ComputeThreshold(DiscreteWaveletTransformThresholdMethod, Int32)	Finds a single threshold for a given thresholding method and decomposition level.
	ComputeThreshold(DoubleVector, DiscreteWaveletTransformThresholdMethod, Int32)	Finds a single threshold for a given thresholding method and decomposition level. (Inherited from DiscreteWaveletTransform)
	CurrentDecompLevel	Provides the current maximum level to which this signal has been decomposed.
	DecompLength	Provides the length of the DWT approximation and detail coefficient vectors. (Inherited from DiscreteWaveletTransform)
	Decompose	Multilevel discrete wavelet decomposition.
	DWT	Single step discrete wavelet decomposition. Both the details and the approximation arrays are returned.
	IDWT	Single step discrete wavelet reconstruction.
	MaximumDecompLevel	Provides the maximum number of DWT decompositions possible based on the signal and wavelet lengths.
	Reconstruct	A complete multilevel discrete wavelet reconstruction. A signal decomposition must be first completed.
	Reconstruct(Int32)	Reconstruct signal with the inverse DWT to level N. A wavelet decomposition to at least level N must be first completed.
	ThresholdAllLevels	Thresholds all levels of detail in the current signal decomposition.
	ThresholdLevel	Thresholds the level N details in the current signal decomposition.
	WaveletCoefficients	After a signal decomposition is completed the detail vectors can be accessed. Depending on the length of the wavelet and signal vector the approximations may have an extra element at the end of the vector due to the IDWT.

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Fields

	Name	Description
	mode_	The current mode of signal edge management. (Inherited from DiscreteWaveletTransform)
	wavelet_	The associated wavelet. (Inherited from DiscreteWaveletTransform)

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Reference

CenterSpace.NMath.Core Namespace