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

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

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/util/Rice Wavelet Toolbox/mrdwt.mhelp	Fri Mar 25 15:27:33 2011 +0000
@@ -0,0 +1,120 @@
+function [yl,yh,L] = mrdwt(x,h,L);
+%    [yl,yh,L] = mrdwt(x,h,L);
+% 
+%    Function computes the redundant discrete wavelet transform y
+%    for a 1D  or 2D input signal. (Redundant means here that the
+%    sub-sampling after each stage is omitted.) yl contains the
+%    lowpass and yh the highpass components. In the case of a 2D
+%    signal, the ordering in yh is 
+%    [lh hl hh lh hl ... ] (first letter refers to row, second to
+%    column filtering). 
+%
+%    Input:
+%	     x : finite length 1D or 2D signal (implicitly periodized)
+%       h : scaling filter
+%       L : number of levels. In the case of a 1D 
+%           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:
+%       yl : lowpass component
+%       yh : highpass components
+%       L  : number of levels
+%
+%  HERE'S AN EASY WAY TO RUN THE EXAMPLES:
+%  Cut-and-paste the example you want to run to a new file 
+%  called ex.m, for example. Delete out the % at the beginning 
+%  of each line in ex.m (Can use search-and-replace in your editor
+%  to replace it with a space). Type 'ex' in matlab and hit return.
+%
+%
+%    Example 1::
+%    x = makesig('Leopold',8);
+%    h = daubcqf(4,'min');
+%    L = 1;
+%    [yl,yh,L] = mrdwt(x,h,L)
+%    yl =  0.8365  0.4830 0 0 0 0 -0.1294 0.2241
+%    yh = -0.2241 -0.1294 0 0 0 0 -0.4830 0.8365
+%    L = 1
+%    Example 2:
+%    load lena;
+%    h = daubcqf(4,'min');
+%    L = 2;
+%    [ll_lev2,yh,L] = mrdwt(lena,h,L); % lena is a 256x256 matrix
+%    N = 256;
+%    lh_lev1 = yh(:,1:N); 
+%    hl_lev1 = yh(:,N+1:2*N); 
+%    hh_lev1 = yh(:,2*N+1:3*N);
+%    lh_lev2 = yh(:,3*N+1:4*N); 
+%    hl_lev2 = yh(:,4*N+1:5*N); 
+%    hh_lev2 = yh(:,5*N+1:6*N);
+%    figure; colormap(gray); imagesc(lena); title('Original Image');
+%    figure; colormap(gray); imagesc(ll_lev2); title('LL Level 2');
+%    figure; colormap(gray); imagesc(hh_lev2); title('HH Level 2');
+%    figure; colormap(gray); imagesc(hl_lev2); title('HL Level 2');
+%    figure; colormap(gray); imagesc(lh_lev2); title('LH Level 2');
+%    figure; colormap(gray); imagesc(hh_lev1); title('HH Level 1');
+%    figure; colormap(gray); imagesc(hl_lev2); title('HL Level 1');
+%    figure; colormap(gray); imagesc(lh_lev2); title('LH Level 1');
+%           
+%    See also: mdwt, midwt, mirdwt
+%
+%    Warning! min(size(x))/2^L should be greater than length(h)
+%
+
+%File Name: mrdwt.m
+%Last Modification Date: 08/07/95	15:14:47
+%Current Version: mrdwt.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 14:26:26 CDT 1995
+%Rebecca Hindman <[e-mail]>
+%Added L to function line so that it can be displayed as an output
+% 
+%Thursday Mar 2 2000
+% Added Example 2
+% Felix Fernandes <[e-mail]>
+
+