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How to plot grey level variation along horizontal cross-section of any image according to position of the mouse?

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How to plot grey level variation along horizontal cross-section of any image according to position of the mouse?

Accepted Answer

Dishant Arora
Dishant Arora on 5 Dec 2014
I = imread('cameraman.tif');
[row , column] = size(I);
imshow(I)
[x , ~] = ginput(1);
plot(1:column , I(x , :))

More Answers (1)

Image Analyst
Image Analyst on 5 Dec 2014
There is a function specifically built for that. It's called improfile(). It can handle profiles at any angle, though if you know that you want exactly a perfect row or column, the code Dishant gave is the way to go.

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