3D nonlinear fit + smoothing

[Vev]

Thank you all for your help. It works now.

 Regards,

 Andrea

[Camu]

Andrea, Amazing work! How do you do the guassian fit?

Camu

Thanks

[Vev]

Hi,

It is not a gaussian fit, just smoothing. I needed to get rid of the small interference fringes from the picture, hence (with the great help of members from this thread)  I just took the FFT of the raw data, place a cuttoff, then remove the high frequencies in the FFT by placing a mask in the 2D FFT, then take the inverse FFT to get back  to my data.

Regards,

 Andrea

[Ben]

Vev wrote

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 I just took the FFT of the raw data, place a cuttoff, then remove the high frequencies in the FFT by placing a mask in the 2D FFT, then take the inverse FFT to get back  to my data.

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Cool!

Thank you,

Ben