How to identify Gaussian type maxima in an image
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I need to identify the correct maximum in a 2D image, which may not may not be a global maxima and is a kind of gaussian or asymmetric type.
Some example are attached.
A method other than imregionalmax or findpeaks is needed
Any suggestion
Thanks
3 Comments
DGM
on 3 Oct 2024
Oh so it's more about finding the maximum that also locally fits a gaussian profile.
Answers (1)
Matt J
on 3 Oct 2024
Edited: Matt J
on 3 Oct 2024
using imregionalmax i can generate a list of candidate. I wanna check each one now. I may like to filter the one which are non symmetrical maximas.
One possibility would be to pull out the surrounding pixels of these candidates - in a neighborhood you think broad enough - and do a Gaussian fit, e.g., with this FEX download,
You can then assess the quality of the fit from the optimal fval to see if it is an admissible maximum.
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