split.m
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上传日期:2013-01-09
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- function tnd = split(t,node,x,varargin)
- %SPLIT Split (decompose) the data of a terminal node.
- % TNDATA = SPLIT(T,N,X) decomposes the data X
- % associated to the terminal node N of the
- % wavelet tree T.
- %
- % TNDATA is a cell array (ORDER x 1) such that
- % TNDATA{k} contains the data associated to
- % the k-th child of N.
- %
- % The method uses DWT (respectively DWT2) for
- % one-dimensional (respectively two-dimensional) data.
- %
- % This method overloads the WTREE method.
- % M. Misiti, Y. Misiti, G. Oppenheim, J.M. Poggi 09-Sep-1999.
- % Last Revision: 15-May-2003.
- % Copyright 1995-2004 The MathWorks, Inc.
- % $Revision: 1.4.4.2 $ $Date: 2004/03/15 22:36:09 $
- [order,dwtMode,Lo_D,Hi_D] = getwtbo(t,'order','dwtMode','Lo_D','Hi_D');
- tnd = cell(order,1);
- switch order
- case 2
- [tnd{2},tnd{1}] = dwt(x,Lo_D,Hi_D,'mode',dwtMode,'shift',0);
- case 4
- [tnd{4},tnd{1},tnd{2},tnd{3}] = ...
- dwt2(x,Lo_D,Hi_D,'mode',dwtMode,'shift',[0 0]);
- end