Mercurial > hg > smallbox
view util/Rice Wavelet Toolbox/HardTh.m @ 204:5fe60504a6a9 luisf_dev
Merge from 203:f3b6ddd2f04f
author | luisf <luis.figueira@eecs.qmul.ac.uk> |
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date | Tue, 20 Mar 2012 15:53:15 +0000 |
parents | f69ae88b8be5 |
children |
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function x = HardTh(y,thld) % x = HardTh(y,thld); % % HARDTH hard thresholds the input signal y with the threshold value % thld. % % Input: % y : 1D or 2D signal to be thresholded % thld : threshold value % % Output: % x : Hard thresholded output (x = (abs(y)>thld).*y) % % 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: % y = makesig('WernerSorrows',8); % thld = 1; % x = HardTh(y,thld) % x = 1.5545 5.3175 0 1.6956 -1.2678 0 1.7332 0 % % See also: SoftTh % %File Name: HardTh.m %Last Modification Date: 8/15/95 17:49:37 %Current Version: HardTh.m 2.4 %File Creation Date: Mon Jan 31 09:42:50 1994 %Author: Haitao Guo <harry@jazz.rice.edu> % %Copyright (c) 2000 RICE UNIVERSITY. All rights reserved. %Created by Haitao Guo, 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 techtran@rice.edu or (713) 348-6173 x = (abs(y) > thld).*y;