int QccWAVSubbandPyramid3DIntShapeAdaptiveDWT(QccWAVSubbandPyramid3DInt
*subband_pyramid, QccWAVSubbandPyramid3DInt *mask, int transform_type,
int temporal_num_levels, int spatial_num_levels, const QccWAVWavelet *wavelet);
int QccWAVSubbandPyramid3DIntInverseShapeAdaptiveDWT(QccWAVSubbandPyramid3DInt
*subband_pyramid, QccWAVSubbandPyramid3DInt *mask, const QccWAVWavelet
*wavelet);
If a dyadic decomposition is chosen (transform_type equal to QCCWAVSUBBANDPYRAMID3DINT_DYADIC), spatial_num_levels and temporal_num_levels must be set to the same value which indicates the number of levels (scales) of dyadic decomposition to perform. In this case, both the spatial_num_levels and temporal_num_levels fields of subband_pyramid are set to this value. Alternatively, if a wavelet-packet decomposition is chosen (transform_type equal to QCCWAVSUBBANDPYRAMID3DINT_PACKET), then spatial_num_levels and temporal_num_levels may be different and indicate the number of spatial decompositions and temporal decompositions, respectively, performed when calculating the wavelet-packet transform.
mask is the transparency mask defining the shape of the data to be transformed; the volume field of mask is passed as the transparency mask to QccWAVWaveletShapeAdaptiveDyadicDWT3DInt(3) or QccWAVWaveletShapeAdaptivePacketDWT3DInt(3) . During the process of performing the 3D SA-DWT, the mask is transformed with a Lazy wavelet transform so as to correctly indicate where valid coefficients reside in the wavelet domain in the transformed subband_pyramid. The transformed mask is return in mask upon completion of QccWAVWaveletSubbandPyramid3DIntShapeAdaptiveDWT().
QccWAVSubbandPyramid3DIntInverseShapeAdaptiveDWT() calls QccWAVWaveletInverseShapeAdaptiveDyadicDWT3DInt(3) or QccWAVWaveletInverseShapeAdaptivePacketDWT3DInt(3) to perform a separable 3D inverse SA-DWT on the volume field of subband_pyramid. The transform_type field of subband_pyramid indicates the type (dyadic or wavelet-packet) of transform, while the numbers of levels of the inverse transform is retrieved from the spatial_num_levels and temporal_num_levels fields of subband_pyramid. Both spatial_num_levels and temporal_num_levels are set to 0 upon return of QccWAVSubbandPyramid3DIntInverseShapeAdaptiveDWT(). mask should be the Lazy-wavelet transformed mask that was output by QccWAVWaveletSubbandPyramid3DIntShapeAdaptiveDWT(). Upon return from QccWAVSubbandPyramid3DIntInverseShapeAdaptiveDWT(), mask is the original transparency mask; i.e., the mask that indicates where valid data resides in the original spatial domain.
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