Name
idwt — Inverse Discrete Fast Wavelet Transform
Calling Sequence
X=idwt(cA,cD,wname,[L])
X=idwt(cA,cD,Lo_R,Hi_R,[L])
Parameters
- wname
-
: wavelet name
- x
-
: reconstructed vector
- Lo_R
-
: lowpass synthesis filter
- Hi_R
-
: highpass syntheis filter
- L
-
: restruction length
- cA
-
: approximation coefficent
- cD
-
: detail coefficent
Description
idwt is for inverse discrete fast wavelet transform. Coefficent could be void vector as '[]' for cA or cD.
Examples
x=rand(1,100);
[cA,cD]=dwt(x,'db2','mode','asymh');
x0=idwt(cA,cD,'db2',100);
Authors
Roger Liu and Isaac Zhi