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

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Tara Prasad Mishra 2017-6-29

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https://ww2.mathworks.cn/matlabcentral/answers/346726-how-to-fit-multiple-gaussian-functions-in-image-without-using-the-curve-fit-gui

评论： MOUNICA 2023-6-1

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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Massimo Zanetti 2017-6-29

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Hi Mishra,

here it the function you need fitgmdist.

It does fitting using Gaussian mixture model.

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.