How to Get 1D Power Spectra from 2D FFT Image

Posted by maveric_ben on Mar 28, 2006; 3:07am
URL: http://imagej.273.s1.nabble.com/How-to-Get-1D-Power-Spectra-from-2D-FFT-Image-tp3703290.html

Dear All,
  Sorry for bothering.
  I had a 2D TEM image and I already used ImageJ to get a 2D power spectra. (FFT transform on the TEM image).
   The problem is: I wan to average the radial intensity distribution of all the direction on the 2D power spectra to get a 1D power spectra. That is to say, how to extract a 1D magnitude of the 2D transform. So, I am wondering is there such a plugin to average over the azimuthal angel to yield the radial power spectra?
   Thanks a lot and your respons will be well appreciated!
  Regards
  Ben

               
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