SynWTFilter Class (CSJ2K.j2k.wavelet.synthesis)

	Name	Description
	AnHighNegSupport
	AnHighPosSupport
	AnLowNegSupport
	AnLowPosSupport
	DataType
	ImplType
	Reversible
	SynHighNegSupport
	SynHighPosSupport
	SynLowNegSupport
	SynLowPosSupport

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	Name	Description
	isSameAsFullWT
	synthetize_hpf	Reconstructs the output signal by the synthesis filter, recomposing the low-pass and high-pass input signals in one output signal. This method performs the upsampling and fitering with the high pass first filtering convention. The input low-pass (high-pass) signal resides in the lowSig array. The index of the first sample to filter (i.e. that will generate the first (second) output sample). is given by lowOff (highOff). This array must be of the same type as the one for which the particular implementation works with (which is returned by the getDataType() method). The low-pass (high-pass) input signal can be interleaved with other signals in the same lowSig (highSig) array, and this is determined by the lowStep (highStep) argument. This means that the first sample of the low-pass (high-pass) input signal is lowSig[lowOff] (highSig[highOff]), the second is lowSig[lowOff+lowStep] (highSig[highOff+highStep]), the third is lowSig[lowOff+2lowStep] (highSig[highOff+2highStep]), and so on. Therefore if lowStep (highStep) is 1 there is no interleaving. This feature allows to filter columns of a 2-D signal, when it is stored in a line by line order in lowSig (highSig), without having to copy the data, in this case the lowStep (highStep) argument should be the line width of the low-pass (high-pass) signal. The output signal is placed in the outSig array. The outOff and outStep arguments are analogous to the lowOff and lowStep ones, but they apply to the outSig array. The outSig array must be long enough to hold the low-pass output signal.
	synthetize_lpf	Reconstructs the output signal by the synthesis filter, recomposing the low-pass and high-pass input signals in one output signal. This method performs the upsampling and fitering with the low pass first filtering convention. The input low-pass (high-pass) signal resides in the lowSig array. The index of the first sample to filter (i.e. that will generate the first (second) output sample). is given by lowOff (highOff). This array must be of the same type as the one for which the particular implementation works with (which is returned by the getDataType() method). The low-pass (high-pass) input signal can be interleaved with other signals in the same lowSig (highSig) array, and this is determined by the lowStep (highStep) argument. This means that the first sample of the low-pass (high-pass) input signal is lowSig[lowOff] (highSig[highOff]), the second is lowSig[lowOff+lowStep] (highSig[highOff+highStep]), the third is lowSig[lowOff+2lowStep] (highSig[highOff+2highStep]), and so on. Therefore if lowStep (highStep) is 1 there is no interleaving. This feature allows to filter columns of a 2-D signal, when it is stored in a line by line order in lowSig (highSig), without having to copy the data, in this case the lowStep (highStep) argument should be the line width of the low-pass (high-pass) signal. The output signal is placed in the outSig array. The outOff and outStep arguments are analogous to the lowOff and lowStep ones, but they apply to the outSig array. The outSig array must be long enough to hold the low-pass output signal.

Name

Description

isSameAsFullWT

synthetize_hpf

Reconstructs the output signal by the synthesis filter, recomposing the low-pass and high-pass input signals in one output signal. This method performs the upsampling and fitering with the high pass first filtering convention.

The input low-pass (high-pass) signal resides in the lowSig array. The index of the first sample to filter (i.e. that will generate the first (second) output sample). is given by lowOff (highOff). This array must be of the same type as the one for which the particular implementation works with (which is returned by the getDataType() method).

The low-pass (high-pass) input signal can be interleaved with other signals in the same lowSig (highSig) array, and this is determined by the lowStep (highStep) argument. This means that the first sample of the low-pass (high-pass) input signal is lowSig[lowOff] (highSig[highOff]), the second is lowSig[lowOff+lowStep] (highSig[highOff+highStep]), the third is lowSig[lowOff+2*lowStep] (highSig[highOff+2*highStep]), and so on. Therefore if lowStep (highStep) is 1 there is no interleaving. This feature allows to filter columns of a 2-D signal, when it is stored in a line by line order in lowSig (highSig), without having to copy the data, in this case the lowStep (highStep) argument should be the line width of the low-pass (high-pass) signal.

The output signal is placed in the outSig array. The outOff and outStep arguments are analogous to the lowOff and lowStep ones, but they apply to the outSig array. The outSig array must be long enough to hold the low-pass output signal.

synthetize_lpf

Reconstructs the output signal by the synthesis filter, recomposing the low-pass and high-pass input signals in one output signal. This method performs the upsampling and fitering with the low pass first filtering convention.

The input low-pass (high-pass) signal resides in the lowSig array. The index of the first sample to filter (i.e. that will generate the first (second) output sample). is given by lowOff (highOff). This array must be of the same type as the one for which the particular implementation works with (which is returned by the getDataType() method).

The low-pass (high-pass) input signal can be interleaved with other signals in the same lowSig (highSig) array, and this is determined by the lowStep (highStep) argument. This means that the first sample of the low-pass (high-pass) input signal is lowSig[lowOff] (highSig[highOff]), the second is lowSig[lowOff+lowStep] (highSig[highOff+highStep]), the third is lowSig[lowOff+2*lowStep] (highSig[highOff+2*highStep]), and so on. Therefore if lowStep (highStep) is 1 there is no interleaving. This feature allows to filter columns of a 2-D signal, when it is stored in a line by line order in lowSig (highSig), without having to copy the data, in this case the lowStep (highStep) argument should be the line width of the low-pass (high-pass) signal.

The output signal is placed in the outSig array. The outOff and outStep arguments are analogous to the lowOff and lowStep ones, but they apply to the outSig array. The outSig array must be long enough to hold the low-pass output signal.

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Reference

SynWTFilter Class
CSJ2K.j2k.wavelet.synthesis Namespace