Re: Combined surface area of all ROI in an image

Posted by Burger Wilhelm on May 16, 2017; 7:48am
URL: http://imagej.273.s1.nabble.com/Combined-surface-area-of-all-ROI-in-an-image-tp5018716p5018726.html

In a Java plugin, you could use Roi's point iterator to count the included pixels, as described here:
https://imagej.nih.gov/ij/developer/api/ij/gui/Roi.html
This should work for composite ROIs too.

--Wilhelm


-----Original Message-----
From: ImageJ Interest Group [mailto:[hidden email]] On Behalf Of mmettlen
Sent: Montag, 15. Mai 2017 15:38
To: [hidden email]
Subject: Combined surface area of all ROI in an image

Easy - yet so difficult: How can I measure the combined total surface area of all ROI in an image? In the attached example : surface area of ROIs
125+126+127+128 = ?
I'm wondering if this can be done automatically? My timeseries has 250 images and the number of ROIs is variable from frame to frame => I'd like to get one number/slice.
<http://imagej.1557.x6.nabble.com/file/n5018716/example.jpg>



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