wavedec
6 vues (au cours des 30 derniers jours)
Afficher commentaires plus anciens
in function [c,s] = wavedec2(x,n.wname); can any one help me about "s" that is bookkeeping matrix? how it calculate? and if i want separate the subbands from "c" by use "s" so become approximation, vertical, diagonal, horizenital separated subbands... ??
0 commentaires
Réponse acceptée
Wayne King
le 29 Déc 2011
Hi Aseel, You can use detcoef2 and appcoef2 along with the inputs C and S to extract the appropriate coefficients.
For example:
load woman;
[C,S] = wavedec2(X,3,'bior3.5');
% get the horizontal, vertical, and diagonal details at level 1
[H,V,D] = detcoef2('all',C,S,1);
% get the approximation coefficients at level 1
A = appcoef2(C,S,'bior3.5',1);
Plus de réponses (0)
Voir également
Catégories
En savoir plus sur Continuous Wavelet Transforms dans Help Center et File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!