diff util/Rice Wavelet Toolbox/mdwt.mhelp @ 78:f69ae88b8be5

added Rice Wavelet Toolbox with my modification, so it can be compiled on newer systems.

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+++ b/util/Rice Wavelet Toolbox/mdwt.mhelp	Fri Mar 25 15:27:33 2011 +0000
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+function [y,L] = mdwt(x,h,L);
+%    [y,L] = mdwt(x,h,L);
+%
+%    Function computes the discrete wavelet transform y for a 1D or 2D input
+%    signal x using the scaling filter h.
+%
+%    Input:
+%	x : finite length 1D or 2D signal (implicitly periodized)
+%       h : scaling filter
+%       L : number of levels. In the case of a 1D signal, length(x) must be
+%           divisible by 2^L; in the case of a 2D signal, the row and the
+%           column dimension must be divisible by 2^L. If no argument is
+%           specified, a full DWT is returned for maximal possible L.
+%
+%    Output:
+%       y : the wavelet transform of the signal 
+%           (see example to understand the coefficients)
+%       L : number of decomposition levels
+%
+%    1D Example:
+%       x = makesig('LinChirp',8);
+%       h = daubcqf(4,'min');
+%       L = 2;
+%       [y,L] = mdwt(x,h,L)
+%
+%    1D Example's  output and explanation:
+%
+%       y = [1.1097 0.8767 0.8204 -0.5201 -0.0339 0.1001 0.2201 -0.1401]
+%       L = 2
+%
+%    The coefficients in output y are arranged as follows
+%
+%       y(1) and y(2) : Scaling coefficients (lowest frequency)
+%       y(3) and y(4) : Band pass wavelet coefficients
+%       y(5) to y(8)  : Finest scale wavelet coefficients (highest frequency)
+%
+%    2D Example:
+%
+%       load test_image        
+%       h = daubcqf(4,'min');
+%       L = 1;
+%       [y,L] = mdwt(test_image,h,L);
+%
+%    2D Example's  output and explanation:
+%
+%       The coefficients in y are arranged as follows.
+%
+%              .------------------.
+%              |         |        |
+%              |    4    |   2    |
+%              |         |        |
+%              |   L,L   |   H,L  |
+%              |         |        |
+%              --------------------
+%              |         |        |
+%              |    3    |   1    |
+%              |         |        |
+%              |   L,H   |  H,H   |
+%              |         |        |
+%              `------------------'
+%       
+%       where 
+%            1 : High pass vertically and high pass horizontally
+%            2 : Low pass vertically and high pass horizontally
+%            3 : High pass vertically and low  pass horizontally
+%            4 : Low pass vertically and Low pass horizontally 
+%                (scaling coefficients)
+%
+%
+%
+%
+%    See also: midwt, mrdwt, mirdwt
+%
+
+%File Name: mdwt.m
+%Last Modification Date: 08/07/95	15:13:25
+%Current Version: mdwt.m	2.4
+%File Creation Date: Wed Oct 19 10:51:58 1994
+%Author: Markus Lang  <[e-mail]>
+%
+%Copyright (c) 2000 RICE UNIVERSITY. All rights reserved.
+%Created by Markus Lang, Department of ECE, Rice University. 
+%
+%This software is distributed and licensed to you on a non-exclusive 
+%basis, free-of-charge. Redistribution and use in source and binary forms, 
+%with or without modification, are permitted provided that the following 
+%conditions are met:
+%
+%1. Redistribution of source code must retain the above copyright notice, 
+%   this list of conditions and the following disclaimer.
+%2. Redistribution in binary form must reproduce the above copyright notice, 
+%   this list of conditions and the following disclaimer in the 
+%   documentation and/or other materials provided with the distribution.
+%3. All advertising materials mentioning features or use of this software 
+%   must display the following acknowledgment: This product includes 
+%   software developed by Rice University, Houston, Texas and its contributors.
+%4. Neither the name of the University nor the names of its contributors 
+%   may be used to endorse or promote products derived from this software 
+%   without specific prior written permission.
+%
+%THIS SOFTWARE IS PROVIDED BY WILLIAM MARSH RICE UNIVERSITY, HOUSTON, TEXAS, 
+%AND CONTRIBUTORS AS IS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, 
+%BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 
+%FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RICE UNIVERSITY 
+%OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 
+%EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 
+%PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; 
+%OR BUSINESS INTERRUPTIONS) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 
+%WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR 
+%OTHERWISE), PRODUCT LIABILITY, OR OTHERWISE ARISING IN ANY WAY OUT OF THE 
+%USE OF THIS SOFTWARE,  EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+%
+%For information on commercial licenses, contact Rice University's Office of 
+%Technology Transfer at [e-mail] or [phone]
+%
+%Change History:
+% 
+%Modification #1
+%Mon Aug  7 11:42:11 CDT 1995
+%Rebecca Hindman <[e-mail]>
+%Added L to function line so that it can be displayed as an output
+%
+%Change History:
+% 
+%Modification #1
+%Thu Mar  2 13:07:11 CDT 2000
+%Ramesh Neelamani<[e-mail]>
+%Revamped the help file
+%
+
+
+