Extended Particle Analyzer - Different results on PC and Mac

Posted by Straub, Volko A. (Dr.) on Feb 05, 2018; 2:42pm
URL: http://imagej.273.s1.nabble.com/Extended-Particle-Analyzer-Different-results-on-PC-and-Mac-tp5019990.html

Dear All,

I have observed some unexpected behaviour using the Extended Particle Analyzer in a macro.
I have analysed the attached image using the Extended Particle Analyzer as part of a macro with the following command:

min=20;
max=300;
run("Extended Particle Analyzer", "area="+min+"-"+max+" pixel roundness=0.4-1.00 show=Nothing redirect=None keep=None add reset");

This generates a list of 507 ROIs in the ROI manager.

However, when I gave the macro to a student for some analysis, who is using a Mac laptop, using the same command on the same image only found 287 ROIs. Manual inspection of the ROI table showed that many of the larger particles were missed.
I am stumped and have no idea why the same macro command applied to the same image should produce such different results just because the macro is executed on a different operating system.

Is this a bug? Any ideas what might be going on?
Thanks,
Volko






--
ImageJ mailing list: http://imagej.nih.gov/ij/list.html