Re: analyze particles exclude holes

Posted by Jean-Philippe Grossier on Apr 26, 2013; 1:13pm
URL: http://imagej.273.s1.nabble.com/analyze-particles-exclude-holes-tp5002812p5002813.html

Hi,

there is no mistake, imagej found 3 particles. If you ask imageJ to measure
area then you will find a difference between "include holes" ticked or not.

include holes just tell imageJ if it should consider the object filled
entirely or not.

if you want to exclude this kind of donut shape from your analysis,
unticked include holes And put a minimum criteria on the area (the best
would be a criteria based on a ratio area/perimeter, but you have to do it
after the particle analysis).


jean-philippe Grossier


2013/4/26 Helmut Bergen <[hidden email]>

> Hello
>
>
>
> I try to do analyze particles and don't understand why ImageJ don't'
> exclude
> holes, although I didn't check the "include holes" button.
>
> For example this picture.
>
>
>
> And the result is:
>
>
>
>
>
> Where is the mistake???
>
>
>
> Thanks for helping and best wishes
>
> Helmut
>
>
>
>
> --
> ImageJ mailing list: http://imagej.nih.gov/ij/list.html
>

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