IMAQ FFT - How can I get the different frequencies of the FFT Image to analyse them?

[Armin Winkler]

I want to analyse a image with the frequencies of the image! After IMAQ FFT i get a image which has low frequencies at the border of the image and high frequencies in the middle. Is this right? But how I can calculate or get the freuqencies of the image to use them for later calculations?

[Amaury]

Amin,

Have you looked at the FFT tutorials available in the Developpment Library? YOu might find some useful info there.

Regards,
Amaury
NI Applications Engineer.