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combine particles in ROI manager automatically

Posted by Karel Jansseune-2 on Apr 20, 2009; 7:42am
URL: http://imagej.273.s1.nabble.com/combine-particles-in-ROI-manager-automatically-tp3692844.html

For our research we are making images of Arabidopsis plants growing in
plates andwe try to measure the area of each plant automatically. In this
way we try to obtain the growth rate of each plant in the plate
We successfully made a macro to do the analysis of a folder of images and
return the results in a text file, but now we sometimes have the problem
that one plant is divided into two during automatic analysis.

Now I was wondering if it is possible to write a macro to instruct ImageJ
to combine the ROI’s found within a certain distance of each other. (let
say, if the 2 ROI’s are less than 2mm apart, they should be combined).