> Hi everyone,
>
> Thanks for the reply. I have attached a piece of my data here. I just
> wanted to calculate the pair correlation function of these particles
> (g(r)). Since I know different packings would give different g(r). This
> attached image has spheres roughly form a 2D close packing, which should
> give a g(r) that is different than other types of packings.
>
> I'd appreciate any inputs on this issue.
>
> Thanks,
> Xiao
>
> Xiao Zhong
> Ph.D. Candidate in Chemistry
> Department of Chemistry and Molecular Design Institute
> New York University
>
> On Wed, Jul 15, 2015 at 11:58 AM, Herbie <
[hidden email]> wrote:
>
>> Dear Richard,
>>
>> the poster Xiao is not very clear, or at least I don't know what "packed
>> particles" are.
>>
>> If "pair correlation function of a certain 2D area" means pixel-pair
>> correlation in that area, I'm pretty sure that this spatial statistic is
>> identical to the auto-correlation function of the image in this area.
>>
>> Best
>>
>> Herbie
>>
>> ::::::::::::::::::::::::::::::::::::::::::
>> Am 15.07.15 um 17:38 schrieb Richard Mort:
>>
>> I think in this context Xiao is looking for the spatial statistic. I'm
>>> not aware of an IJ plugin to do this at the moment but it is on my to do
>>> list as its a very useful method. The quickest approach would be to
>>> segment your images and then use analyze particles to get the XY
>>> positions of each object. Save as .csv and then import this data into R
>>> and use the spatstat package:
>>>
>>>
http://www.inside-r.org/packages/cran/spatstat/docs/pcf>>>
>>> Best
>>> R
>>>
>>> On 15/07/15 16:16, Herbie wrote:
>>>
>>>> Xiao,
>>>>
>>>> it's always a good idea to first consult the user guide...
>>>>
>>>> You may have a look at page
>>>>
>>>> <
http://rsb.info.nih.gov/ij/docs/guide/146-29.html#toc-Subsection-29.10>
>>>>
>>>> Subsection " 29.10.7 FD Math… "
>>>>
>>>> If you use Image1 = Image2, i.e. the same image, then you get the
>>>> auto-correlation function and I guess this is what you want.
>>>>
>>>> HTH
>>>>
>>>> Herbie
>>>>
>>>> ::::::::::::::::::::::::::::::::::::::::
>>>> Am 15.07.15 um 15:29 schrieb Xiao Zhong:
>>>>
>>>>> 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>>>>>
>>>>>
>>>> --
>>>> ImageJ mailing list:
http://imagej.nih.gov/ij/list.html>>>>
>>>
>> --
>> ImageJ mailing list:
http://imagej.nih.gov/ij/list.html>>
> --
> ImageJ mailing list:
http://imagej.nih.gov/ij/list.html