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

See Also

wavedec , waverec , appcoef