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How to fit multiple Gaussian functions in image without using the Curve fit GUI?

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Tara Prasad Mishra
Tara Prasad Mishra on 29 Jun 2017
Commented: Massimo Zanetti on 11 Jul 2017
I am trying to fit multiple Gaussians in a TEM image. I want to achieve this using coding rather than the curve fitting tool.

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Answers (1)

Massimo Zanetti
Massimo Zanetti on 29 Jun 2017
Hi Mishra,
here it the function you need fitgmdist.
It does fitting using Gaussian mixture model.

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Tara Prasad Mishra
Tara Prasad Mishra on 7 Jul 2017
Hello Massimo, I need 3D Gaussian since there is an intensity component involved with the images. Is there any method to fit multiple 3D Gaussian data?
Massimo Zanetti
Massimo Zanetti on 11 Jul 2017
As Adam says, fitgmdist fits multi-dimensional data. In the doc page you see the input is a matrix X where rows are observations and columns are variable. Therefore, if you are dealing with 3-dimensional data, your matrix X will be size N-by-3, where N is the number of observations.

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