www.gusucode.com > wavelet工具箱matlab源码程序 > wavelet/wavelet/@wdectree/wdtcoef.m
function x = wdtcoef(t,node) %WDTCOEF Wavelet decomposition tree reconstruction. % X = WDTCOEF(T) returns the reconstructed vector % corresponding to a wavelet packet tree T. % M. Misiti, Y. Misiti, G. Oppenheim, J.M. Poggi 13-Mar-2003. % Last Revision: 06-Feb-2011. % Copyright 1995-2015 The MathWorks, Inc. % Check arguments. nargoutchk(0,1); narginchk(1,1); if nargin==1, node = 0; end % Get node coefficients. [~,x] = nodejoin(t,node); if ndims(x)>2 && node==0 x(x<0) = 0; x = uint8(x); end