qccwavwaveletanalysis1d.3

spiht for linux this is used to decod and encode vedio i wich all enjoy

.TH QCCWAVWAVELETANALYSIS1D 3 "QCCPACK" ""
.SH NAME
QccWAVWaveletAnalysis1D, QccWAVWaveletSynthesis1D \- 
wavelet analysis/synthesis of a 1D signal
.SH SYNOPSIS
.B #include "libQccPack.h"
.sp
.BI "int QccWAVWaveletAnalysis1D(QccVector " signal ", int " signal_length ", int " phase ", const QccWAVWavelet *" wavelet );
.br
.BI "int QccWAVWaveletSynthesis1D(QccVector " signal ", int " signal_length ", int " phase ", const QccWAVWavelet *" wavelet );
.SH DESCRIPTION
.B QccWAVWaveletAnalysis1D()
performs one level of a wavelet decomposition for a one-dimensional signal.
Essentially,
.BR QccWAVWaveletAnalysis1D()
calls either
.BR QccWAVFilterBankAnalysis (3)
or
.BR QccWAVLiftingAnalysis (3)
depending on whether
.I wavelet
specifies a filter-bank or
lifting implementation.
.I phase
indicates whether 
.I signal
is to start with an odd- or even-indexed sample;
that is, whether odd- or even-phase subsampling
is employed after filtering.
.I phase
can be either
.B QCCWAVWAVELET_PHASE_EVEN
or
.BR QCCWAVWAVELET_PHASE_ODD .
Additionally,
.I signal_length
can be even or odd.
.LP
.B QccWAVWaveletSynthesis1D()
performs one level of wavelet synthesis.  The first half of
.I signal
is assumed to contain the lowpass subband while the second half contains
the highpass subband.
.B QccWAVWaveletSynthesis1D()
calls either
.BR QccWAVFilterBankSynthesis (3)
or
.BR QccWAVLiftingSynthesis (3)
depending on whether
.I wavelet
specifies a filter-bank or
lifting implementation.
.I phase
indicates whether 
.I signal
is to start with an odd- or even-indexed sample.
.I signal_length
can be even or odd.
.LP
Note:
In general, you will probably want to use
.BR QccWAVWaveletDWT1D (3)
and
.BR QccWAVWaveletInverseDWT1D (3)
instead of these routines
for implementing a discrete wavelet transform and its inverse since
.BR QccWAVWaveletDWT1D (3)
and
.BR QccWAVWaveletInverseDWT1D (3)
allow any number of scales, or levels, of decomposition to be
performed.
.SH "RETURN VALUES"
These routines
return 0 on success and 1 on error.
.SH "SEE ALSO"
.BR QccWAVFilterBank (3),
.BR QccWAVFilterBankAnalysis (3),
.BR QccWAVLiftingScheme (3),
.BR QccWAVLiftingAnalysis (3),
.BR QccWAVWavelet (3),
.BR QccWAVWaveletDWT1D (3),
.BR QccWAVWaveletInverseDWT1D (3),
.BR QccPackWAV (3),
.BR QccPack (3)
.LP
M. Antonini, M. Barlaud, P. Mathieu, and I. Daubechies,
"Image Coding Using Wavelet Transform,"
.IR "IEEE Transactions on Image Processing" ,
vol. 1, pp. 205-220, April 1992.
.LP
I. Daubechies and W. Sweldens,
"Factoring Wavelet Transforms Into Lifting Steps,"
.IR "J. Fourier Anal. Appl." ,
vol. 4, no. 3, pp. 245-267, 1998.
.SH AUTHOR
Copyright (C) 1997-2009  James E. Fowler
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