Wavelet Toolbox™

Extract wavelet tree from wavelet packet tree

Syntax

• T = wp2wtree(T) 
  

Description

wp2wtree is a one- or two-dimensional wavelet packet analysis function.

T = wp2wtree(T) computes the modified wavelet packet tree T corresponding to the wavelet decomposition tree.

Examples

• % The current extension mode is zero-padding (see dwtmode).
  
  % Load signal. 
      load noisdopp; x = noisdopp;
  
  % Decompose x at depth 3 with db1 wavelet packets 
  % using shannon entropy. 
  wpt = wpdec(x,3,'db1');
  
  % Plot wavelet packet tree wpt. 
  plot(wpt)
  
  
  % Compute wavelet tree. 
  wt = wp2wtree(wpt);
  
  % Plot wavelet tree wt. 
  plot(wt)
  
  
  

See Also
wpdec, wpdec2

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