public class AnWTFilterIntLift5x3 extends AnWTFilterInt
See the AnWTFilter class for details such as normalization, how to split oddlength signals, etc. In particular, this method assumes that the lowpass coefficient is computed first.
AnWTFilter
,
AnWTFilterInt
Modifier and Type  Field and Description 

private static float[] 
HPSynthesisFilter
The highpass synthesis filter of the 5x3 wavelet transform

private static float[] 
LPSynthesisFilter
The lowpass synthesis filter of the 5x3 wavelet transform

OPT_PREFIX
WT_FILTER_FLOAT_CONVOL, WT_FILTER_FLOAT_LIFT, WT_FILTER_INT_LIFT
Constructor and Description 

AnWTFilterIntLift5x3() 
Modifier and Type  Method and Description 

void 
analyze_hpf(int[] inSig,
int inOff,
int inLen,
int inStep,
int[] lowSig,
int lowOff,
int lowStep,
int[] highSig,
int highOff,
int highStep)
An implementation of the analyze_hpf() method that works on int data,
for the forward 5x3 wavelet transform using the lifting scheme.

void 
analyze_lpf(int[] inSig,
int inOff,
int inLen,
int inStep,
int[] lowSig,
int lowOff,
int lowStep,
int[] highSig,
int highOff,
int highStep)
An implementation of the analyze_lpf() method that works on int data,
for the forward 5x3 wavelet transform using the lifting scheme.

boolean 
equals(Object obj)
Tests if the 'obj' object is the same filter as this one.

int 
getAnHighNegSupport()
Returns the negative support of the highpass analysis filter.

int 
getAnHighPosSupport()
Returns the positive support of the highpass analysis filter.

int 
getAnLowNegSupport()
Returns the negative support of the lowpass analysis
filter.

int 
getAnLowPosSupport()
Returns the positive support of the lowpass analysis filter.

int 
getFilterType()
Returns the type of filter used according to the FilterTypes interface
(W5x3).

float[] 
getHPSynthesisFilter()
Returns the timereversed highpass synthesis waveform of the filter,
which is the highpass filter.

int 
getImplType()
Returns the implementation type of this filter, as defined in this
class, such as WT_FILTER_INT_LIFT, WT_FILTER_FLOAT_LIFT,
WT_FILTER_FLOAT_CONVOL.

float[] 
getLPSynthesisFilter()
Returns the timereversed lowpass synthesis waveform of the filter,
which is the lowpass filter.

int 
getSynHighNegSupport()
Returns the negative support of the highpass synthesis filter.

int 
getSynHighPosSupport()
Returns the positive support of the highpass synthesis filter.

int 
getSynLowNegSupport()
Returns the negative support of the lowpass synthesis filter.

int 
getSynLowPosSupport()
Returns the positive support of the lowpass synthesis filter.

boolean 
isReversible()
Returns the reversibility of the filter.

boolean 
isSameAsFullWT(int tailOvrlp,
int headOvrlp,
int inLen)
Returns true if the wavelet filter computes or uses the same "inner"
subband coefficient as the full frame wavelet transform, and false
otherwise.

String 
toString()
Debugging method

analyze_hpf, analyze_lpf, getDataType
getHPSynWaveForm, getLPSynWaveForm, getParameterInfo
private static final float[] LPSynthesisFilter
private static final float[] HPSynthesisFilter
public void analyze_lpf(int[] inSig, int inOff, int inLen, int inStep, int[] lowSig, int lowOff, int lowStep, int[] highSig, int highOff, int highStep)
The coefficients of the first lifting step are [1/2 1 1/2].
The coefficients of the second lifting step are [1/4 1 1/4].
analyze_lpf
in class AnWTFilterInt
inSig
 This is the array that contains the input
signal.inOff
 This is the index in inSig of the first sample to
filter.inLen
 This is the number of samples in the input signal
to filter.inStep
 This is the step, or interleave factor, of the
input signal samples in the inSig array.lowSig
 This is the array where the lowpass output
signal is placed.lowOff
 This is the index in lowSig of the element where
to put the first lowpass output sample.lowStep
 This is the step, or interleave factor, of the
lowpass output samples in the lowSig array.highSig
 This is the array where the highpass output
signal is placed.highOff
 This is the index in highSig of the element where
to put the first highpass output sample.highStep
 This is the step, or interleave factor, of the
highpass output samples in the highSig array.AnWTFilter.analyze_lpf(java.lang.Object, int, int, int, java.lang.Object, int, int, java.lang.Object, int, int)
public void analyze_hpf(int[] inSig, int inOff, int inLen, int inStep, int[] lowSig, int lowOff, int lowStep, int[] highSig, int highOff, int highStep)
The coefficients of the first lifting step are [1/2 1 1/2].
The coefficients of the second lifting step are [1/4 1 1/4].
analyze_hpf
in class AnWTFilterInt
inSig
 This is the array that contains the input
signal.inOff
 This is the index in inSig of the first sample to
filter.inLen
 This is the number of samples in the input signal
to filter.inStep
 This is the step, or interleave factor, of the
input signal samples in the inSig array.lowSig
 This is the array where the lowpass output
signal is placed.lowOff
 This is the index in lowSig of the element where
to put the first lowpass output sample.lowStep
 This is the step, or interleave factor, of the
lowpass output samples in the lowSig array.highSig
 This is the array where the highpass output
signal is placed.highOff
 This is the index in highSig of the element where
to put the first highpass output sample.highStep
 This is the step, or interleave factor, of the
highpass output samples in the highSig array.AnWTFilter.analyze_hpf(java.lang.Object, int, int, int, java.lang.Object, int, int, java.lang.Object, int, int)
public int getAnLowNegSupport()
public int getAnLowPosSupport()
public int getAnHighNegSupport()
public int getAnHighPosSupport()
public int getSynLowNegSupport()
A MORE PRECISE DEFINITION IS NEEDED
public int getSynLowPosSupport()
A MORE PRECISE DEFINITION IS NEEDED
public int getSynHighNegSupport()
A MORE PRECISE DEFINITION IS NEEDED
public int getSynHighPosSupport()
A MORE PRECISE DEFINITION IS NEEDED
public float[] getLPSynthesisFilter()
The returned array may not be modified (i.e. a reference to the internal array may be returned by the implementation of this method).
getLPSynthesisFilter
in class AnWTFilter
public float[] getHPSynthesisFilter()
The returned array may not be modified (i.e. a reference to the internal array may be returned by the implementation of this method).
getHPSynthesisFilter
in class AnWTFilter
public int getImplType()
public boolean isReversible()
public boolean isSameAsFullWT(int tailOvrlp, int headOvrlp, int inLen)
The result depends on the length of the allowed overlap when compared to the overlap required by the wavelet filter. It also depends on how overlap processing is implemented in the wavelet filter.
tailOvrlp
 This is the number of samples in the input signal
before the first sample to filter that can be used for overlap.headOvrlp
 This is the number of samples in the input signal
after the last sample to filter that can be used for overlap.inLen
 This is the lenght of the input signal to filter.The
required number of samples in the input signal after the last sample
depends on the length of the input signal.public boolean equals(Object obj)
Currently the implementation of this method only tests if 'obj' is also of the class AnWTFilterIntLift5x3.
public int getFilterType()
getFilterType
in class AnWTFilter
FilterTypes
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