Re: Automating Image Processing and Problems with FFTJ

Posted by Aaron Hendrickson on Sep 05, 2013; 9:29pm
URL: http://imagej.273.s1.nabble.com/Automating-Image-Processing-and-Problems-with-FFTJ-tp5004660p5004691.html

Brian,

Thank you for the code and additional information; it was very useful to
know.

Herbie and Michael,

The reason I have been using FFTJ is because it returns a DFT in my case.
 The images I am using are originally 2-d images of double slit laser
interference patterns that are captured to evaluate  the MTF of the image
sensor under test.  I am aiming to measure the PS of each row or column
(depending on if test is MTF in vertical or horizontal direction) then
average them together and determine the frequency of the interference
pattern and its modulation.  If I remember correctly (which I might not)
when I made a PS from a single row image in ImageJ's FFT option, I got the
1-d PS displayed as a 2-D array.  Also, I know FFTJ returns a PS of the
same size as the original image and was not scaled in an way (which I
liked).  That is why I am trying to do this analysis through FFTJ and hence
the problem I had trying to record it.  That said, do you know of how the
source ode of FFTJ would have to be modified to do the batch processing I
need?

Respectfully,
Aaron

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