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

See Also

dwt , dwt2 , idwt2