Scilab Wavelet Toolbox Function
Last update : June 2007

detcoef2 - Two Dimension Detail Coefficent Extraction

Calling Sequence

D=detcoef2(type,c,s,N)
[H,V,D]=detcoef2('all',c,s,N)

Parameters

Description

detcoef2 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.

Examples

  x=rand(100,100);
  [C,S]=wavedec2(x,3,'db2');
  H2=detcoef2('h',C,S,2);
 

Author

Roger Liu and Isaac Zhi

See Also

wavedec2 ,   waverec2 ,   appcoef2 ,