Name

wavedec2 — Two Dimension Multiple Level Discrete Fast Wavelet Transform

Calling Sequence

[C,S]=wavedec(x,N,wname)
[C,S]=wavedec(x,N,Lo_D,Hi_D)

Parameters

wname
: wavelet name
x
: double matrix
N
: decompostion level
Lo_D
: lowpass analysis filter
Hi_D
: highpass analysis filter
C
: coefficent array
S
: size array

Description

wavedec is for two dimension multiple-level discrete fast wavelet transform. Extension is stored as a global variable and could be changed by dwtmode;

Examples

  x=rand(100,100);
  [C,S]=wavedec2(x,3,'db2');
 

Authors

Roger Liu and Isaac Zhi

See Also

waverec2