Re: RoiManager "Combine"

Posted by Wayne Rasband on Aug 07, 2006; 3:15pm
URL: http://imagej.273.s1.nabble.com/RoiManager-Combine-tp3701796p3701797.html

> Hello,
>
> I am having difficulty understanding the "Combine" operation for the
> RoiManager.  Here is an example...
>
> (1) run the "RoiManagerAddParticles.txt" example macro availbale at
>
> http://rsb.info.nih.gov/ij/macros/RoiManagerAddParticles.txt
>
>
> (2) select the first and second ROIs by shift-clicking on...
>
> 0005-0063
> 0014-0108
>
> (3) press the "Combine" button (both ROIs are highlighted)
>
> (4) then press the "Measure" button
>
> At this point two measurements are added - identical to the originals.
> I expected a single measurement.  Is there a way to have ImageJ treat
> the two as a single ROI?

Press the "m" key (Analyze>Measure) and ImageJ will treat the two as a
single ROI. Or add the combined ROI to the ROI Manager, select it and
press the "Measure" button.

-wayne