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Calculating local minima locations adjacent to a local maxima

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Naseer Khan
Naseer Khan 2016-9-16
编辑： Naseer Khan 2016-9-16
I m trying to find following points corresponding to local maximum.
For this I am writing a following code
url='https://i.ytimg.com/vi/9wnO8jQniS0/hqdefault.jpg';
Image=imread(url);
grayImage=rgb2gray(Image);
edgedImage=edge(grayImage,'sobel','vertical');
signal=sum(edgedImage,2);
plot(signal);
window=10;
h=gausswin(2*window+1)./window;
smSignal=filter(h,1,signal);
figure;plot(smSignal)
How would I find those points locations on x-axis? Also if I set some threshold like peaks with height greater than 40 only then how only those minpoint corresponding to peaks greater than 40 will be selected?

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