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CSJ2K.j2k.wavelet.analysis.AnWTFilterIntLift5x3.isSameAsFullWT

isSameAsFullWT Method

isSameAsFullWT(int, int, int)

Returns true if the wavelet filter computes or uses the same "inner" subband coefficient as the full frame wavelet transform, and false otherwise. In particular, for block based transforms with reduced overlap, this method should return false. The term "inner" indicates that this applies only with respect to the coefficient that are not affected by image boundaries processings such as symmetric extension, since there is not reference method for this.

       <p>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.</p>
Declaration
public override bool isSameAsFullWT(int tailOvrlp, int headOvrlp, int inLen)
Parameters
Type Name Description
int tailOvrlp

This is the number of samples in the input signal before the first sample to filter that can be used for overlap.
int headOvrlp

This is the number of samples in the input signal after the last sample to filter that can be used for overlap.
int 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.
Returns
Type Description
bool

true if both overlaps are greater than 2, and correct processing is applied in the analyze() method.
Overrides