Biorthogonal spline wavelet filter
[RF,DF] = biorwavf(W)
[RF,DF] = biorwavf(W) returns the reconstruction (synthesis) and decomposition (analysis) filters associated with the biorthogonal wavelet specified by the string W.
W = 'biorNr.Nd' where possible values for Nr and Nd are
|Nr = 1||Nd = 1 , 3 or 5|
|Nr = 2||Nd = 2 , 4 , 6 or 8|
|Nr = 3||Nd = 1 , 3 , 5 , 7 or 9|
|Nr = 4||Nd = 4|
|Nr = 5||Nd = 5|
|Nr = 6||Nd = 8|
The output arguments are filters.
RF is the reconstruction filter.
DF is the decomposition filter.
% Set spline biorthogonal wavelet name. wname = 'bior2.2'; % Compute the two corresponding scaling filters. % rf is the reconstruction scaling filter. % df is the decomposition scaling filter. [rf,rd] = biorwavf(wname) rf = 0.2500 0.5000 0.2500 df = -0.1250 0.2500 0.7500 0.2500 -0.1250