Scilab Wavelet Toolbox Function
Last update : June 2007
wavedec - Multiple Level Discrete Fast Wavelet Transform
Calling Sequence
-
[C,L]=wavedec(x,N,wname)
-
[C,L]=wavedec(x,N,Lo_D,Hi_D)
Parameters
-
wname
: wavelet name
-
x
: double vector
-
N
: decompostion level
-
Lo_D
: lowpass analysis filter
-
Hi_D
: highpass analysis filter
-
C
: coefficent array
-
L
: length array
Description
wavedec is for multiple-level discrete fast wavelet transform. Extension is stored as a global variable and could be changed by dwtmode;
Examples
x=rand(1,100);
[C,L]=wavedec(x,3,'db2');
Author
Roger Liu and Isaac Zhi
See Also
waverec
,