Dear All:
I am trying to make FFTs of images of assemblies of
spheres and other shapes to explain diffraction, the
usual thing. So far I do this through cumbersome
cludges, and I bet there are better ways, and I
am looking for free or cheap software to do this.
I load the image into basic mathcad, dump it as a grayscale
array, SFT it with a F90 kludge (s=slow), and load the
transform back into MC and convert it into an image. However, what
I also want to do is generate a false color diffraction
pattern where the color is the phase. I believe this
is quite similar to the Fourier duck transforms Kevin Cowtan
made. I also recall a textbook were two crystallographers
were phase exchanged, so there got to be packages
that to what I want.
The mathcad image processing module is too expensive for my taste.
Any suggestions for software - maybe there is some software
out already to simulate diffraction from one, 2, 3 an array of
objects?
Cheers, br
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Bernhard Rupp
www.ruppweb.org
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