资源简介
基于形态学滤波去噪matlab代码

代码片段和文件信息
function [denoised] = morphological(x)
% Code written and published by Aditya Sundar Texas Instruments
% This code can be used to morpholgically filter an image
% This code also plots the inputs and the outputs
% based on the amount of noise present in the signal and the type length of the time series the size of the structuring element should be changed
% More the width of the white portion Structuring element more is the
% filtering
%Larger the size of the SE more is the filtering also
% Incase of any queries please email me at : aditsundar@gmail.com
%demo script
% x =xlsread(‘noisy.xlsx‘);
% denoised= morphological(x);
% Original idea for the same was developed by :
%Rishendra Verma Rini Mehrotra Vikrant Bhateja A New Morphological Filtering Algorithm for Pre-Processing of Electrocardiographic Signals Lecture Notes in Electrical Engineering Volume 1 Pg.193-201 (2013) %doi : 10.1007/978-81-322-0997-3_18
%Please rate if you find useful
plot(x)
title(‘noisy signal‘);
SE=zeros(1010);
for i=4:6
for j=1:10
SE(ij)=1;
end
end
for j=4:6
for i=1:10
SE(ij)=1;
end
end
imtool(SE);
IM2 = imtophat(xSE);
%plot(IM2); %Morphologically estimated noise
denoised= x-IM2;
figure(2)
plot(denoised);
title(‘denoised signal‘);
end
属性 大小 日期 时间 名称
----------- --------- ---------- ----- ----
文件 1352 2015-05-02 00:34 Morphological signal filtering\morphological.m
文件 64796 2015-08-24 16:48 Morphological signal filtering\Noisy.xlsx
文件 70986 2015-11-25 00:39 Morphological signal filtering\ti
文件 1520 2015-09-23 13:52 license.txt
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