merge.m
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上传日期:2013-01-09
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- function x = merge(t,node,tnd)
- %MERGE Merge (recompose) the data of a node.
- % X = MERGE(T,N,TNDATA) recomposes the data X
- % associated to the node N of the wavelet packet tree T,
- % using the datas associated to the children of N.
- %
- % TNDATA is a cell array (ORDER x 1) or (1 x ORDER)
- % such that TNDATA{k} contains the data associated to
- % the kth child of N.
- %
- % The method uses IDWT (respectively IDWT2) for
- % one dimensional (respectively two dimensional) datas.
- %
- % This method overloads the DTREE method.
-
- % M. Misiti, Y. Misiti, G. Oppenheim, J.M. Poggi 15-Oct-96.
- % Last Revision: 21-May-2003.
- % Copyright 1995-2004 The MathWorks, Inc.
- % $Revision: 1.4.4.2 $ $Date: 2004/03/15 22:39:10 $
- order = treeord(t);
- s = nodesize(t,node);
- Lo_R = t.wavInfo.Lo_R;
- Hi_R = t.wavInfo.Hi_R;
- switch order
- case 2 , x = idwt(tnd{1},tnd{2},Lo_R,Hi_R,max(s));
- case 4 , x = idwt2(tnd{1},tnd{2},tnd{3},tnd{4},Lo_R,Hi_R,s);
- end