Re: Pair correlation function on ImageJ

Posted by Michael Schmid on Jul 15, 2015; 7:52pm
URL: http://imagej.273.s1.nabble.com/Pair-correlation-function-on-ImageJ-tp5013569p5013582.html

Hi Xiao,

in addition to the ImageJ built-in Fourier Math mentioned by Herbie, there
are also two macros that you might consider - they have the advantage that
they automatically correct for effects of finite image size:

http://imagejdocu.tudor.lu/doku.php?id=macro:radially_averaged_autocorrelation
  for the autocorrelation of a binary image and
http://imagejdocu.tudor.lu/doku.php?id=macro:radial_distribution_function
 for the radial distribution function of particle centers.

If you delete everything starting with creating the radial profile, you
can use these also to get a 2D autocorrelation without having to bother
about finite image size.

Michael
___________________________________________________________________


On Wed, July 15, 2015 15:29, Xiao Zhong wrote:

> Hi everyone,
>
> I am Ph.D. candidate and am working on a project concerning colloidal
> particle packing. I am new to ImageJ and I was wondering if anyone knows
> how to use it to calculate pair correlation function of a certain 2D area
> with packed particles.
>
> Thanks!
>
> Best,
> Xiao
>
> --
> ImageJ mailing list: http://imagej.nih.gov/ij/list.html
>

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