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comparison util/Rice Wavelet Toolbox/midwt.mhelp @ 78:f69ae88b8be5

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added Rice Wavelet Toolbox with my modification, so it can be compiled on newer systems.
author Ivan Damnjanovic lnx <ivan.damnjanovic@eecs.qmul.ac.uk>
date Fri, 25 Mar 2011 15:27:33 +0000
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76:d052ec5b742f 78:f69ae88b8be5
1 function [y,L] = midwt(x,h,L);
2 % [x,L] = midwt(y,h,L);
3 %
4 % Function computes the inverse discrete wavelet transform x for a 1D or
5 % 2D input signal y using the scaling filter h.
6 %
7 % Input:
8 % y : finite length 1D or 2D input signal (implicitly periodized)
9 % (see function mdwt to find the structure of y)
10 % h : scaling filter
11 % L : number of levels. In the case of a 1D signal, length(x) must be
12 % divisible by 2^L; in the case of a 2D signal, the row and the
13 % column dimension must be divisible by 2^L. If no argument is
14 % specified, a full inverse DWT is returned for maximal possible
15 % L.
16 %
17 % Output:
18 % x : periodic reconstructed signal
19 % L : number of decomposition levels
20 %
21 % 1D Example:
22 % xin = makesig('LinChirp',8);
23 % h = daubcqf(4,'min');
24 % L = 1;
25 % [y,L] = mdwt(xin,h,L);
26 % [x,L] = midwt(y,h,L)
27 %
28 % 1D Example's output:
29 %
30 % x = 0.0491 0.1951 0.4276 0.7071 0.9415 0.9808 0.6716 0.0000
31 % L = 1
32 %
33 % See also: mdwt, mrdwt, mirdwt
34 %
35
36 %
37 %
38 %File Name: midwt.m
39 %Last Modification Date: 08/07/95 15:13:52
40 %Current Version: midwt.m 2.4
41 %File Creation Date: Wed Oct 19 10:51:58 1994
42 %Author: Markus Lang <lang@jazz.rice.edu>
43 %
44 %Copyright (c) 2000 RICE UNIVERSITY. All rights reserved.
45 %Created by Markus Lang, Department of ECE, Rice University.
46 %
47 %This software is distributed and licensed to you on a non-exclusive
48 %basis, free-of-charge. Redistribution and use in source and binary forms,
49 %with or without modification, are permitted provided that the following
50 %conditions are met:
51 %
52 %1. Redistribution of source code must retain the above copyright notice,
53 % this list of conditions and the following disclaimer.
54 %2. Redistribution in binary form must reproduce the above copyright notice,
55 % this list of conditions and the following disclaimer in the
56 % documentation and/or other materials provided with the distribution.
57 %3. All advertising materials mentioning features or use of this software
58 % must display the following acknowledgment: This product includes
59 % software developed by Rice University, Houston, Texas and its contributors.
60 %4. Neither the name of the University nor the names of its contributors
61 % may be used to endorse or promote products derived from this software
62 % without specific prior written permission.
63 %
64 %THIS SOFTWARE IS PROVIDED BY WILLIAM MARSH RICE UNIVERSITY, HOUSTON, TEXAS,
65 %AND CONTRIBUTORS AS IS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING,
66 %BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
67 %FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RICE UNIVERSITY
68 %OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
69 %EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
70 %PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
71 %OR BUSINESS INTERRUPTIONS) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
72 %WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
73 %OTHERWISE), PRODUCT LIABILITY, OR OTHERWISE ARISING IN ANY WAY OUT OF THE
74 %USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
75 %
76 %For information on commercial licenses, contact Rice University's Office of
77 %Technology Transfer at techtran@rice.edu or (713) 348-6173
78 %
79 %Change History:
80 %
81 %Modification #1
82 %Mon Aug 7 11:52:33 CDT 1995
83 %Rebecca Hindman <hindman@ece.rice.edu>
84 %Added L to function line so that it can be displayed as an output
85 %
86 %Thu Mar 2 13:07:11 CDT 2000
87 %Ramesh Neelamani<neelsh@ece.rice.edu>
88 %Revamped the help file
89 %
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