Volume of cluster

Posted by Aaron Johnson-9 on Oct 24, 2008; 4:11am
URL: http://imagej.273.s1.nabble.com/Volume-of-cluster-tp3694608.html

I'm measuring the volume of a cluster of objects (like a cluster of grapes)
in an 8-bit stacked image.  Some clusters are tightly grouped and others are
more spread out.  I can threshold and measure the volume of the components
of the cluster, but I'm having a hard time figuring out how I can measure
the volume of the entire cluster, including the space between the cluster
components.  Is there an automated way to do this?  Can I either fill in the
holes (I've tried Binary:Fill Holes but the holes are too big) or maybe
automatically draw a ROI that encompasses all the cluster components?  Any
advice would be much appreciated.  Thanks.

Aaron

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Aaron M. Johnson
Doctoral Student
Dept. of Surgery
University of Wisconsin - Madison