[scilab-Users] Loglog plot and fft2

[Samuel GOUGEON]

  Hello,

----- Message d'origine -----
De : Paolo Zaffino
Date : 07/03/2011 19:56:
> Hi at all!
> I must compute the power spectrum density of an image.
> For this reason I run:
> psd=sqrt(abs(fft2(img)));
> and it seems ok.
Did you check your results?: http://bugzilla.scilab.org/show_bug.cgi?id=7895

> Now I'd like plot into a loglog graph the spectrum of the 2D Fouriere trasform 
> (frequency vs magnitude)...Could anyone help me?
> Thanks a lot!
You likely mean a 3D plot: magnitude vs (frequency_x, frequency_y)?

Samuel