Name
detcoef — One Dimension Detail Coefficent Extraction
Calling Sequence
D=detcoef(c,l,[N])
Parameters
- D
-
: reconstructed detail coefficient
- c
-
: coefficent array
- l
-
: length array
- N
-
: restruction level
Description
detcoef is for extraction of detail coeffient at different level after a multiple level decompostion. Extension mode is stored as a global variable and could be changed with dwtmode. If N is omitted, maximum level approximation will be obtained.
Examples
x=rand(1,100);
[C,L]=wavedec(x,3,'db2');
D2=detcoef(c,l,2);
Authors
Roger Liu and Isaac Zhi