Name
wrcoef2 — Restruction from single branch from two dimension multiple level decompstion
Calling Sequence
X=wrcoef2(type,c,s,wname,[N])
X=wrcoef2(type,c,s,Lo_R,Hi_R,[N])
Parameters
- type
-
: approximation or detail, 'a', 'h', 'v' or 'd'.
- wname
-
: wavelet name
- X
-
: reconstruction
- Lo_R
-
: lowpass synthesis filter
- Hi_R
-
: highpass syntheis filter
- c
-
: coefficent array
- s
-
: size array
- N
-
: restruction level
Description
wrcoef2 is for reconstruciton from single branch of two dimension multiple level
decompostion. Extension mode is stored as a global variable and
could be changed with dwtmode. If N is omitted, maximum level is
used.
Examples
x=rand(100,100);
[C,S]=wavedec2(x,3,'db2');
A2=wrcoef2('a',c,S,'db2',2);
Authors
Roger Liu and Isaac Zhi