Annular Region of Interest

Posted by Graham Arden on Jul 24, 2009; 10:30am
URL: http://imagej.273.s1.nabble.com/Annular-Region-of-Interest-tp3691656.html

Hello

Is it possible to produce annular ROI in imageJ.  I have a number of
nuclear medicine phantom images which consist of an area of high
activity surrounding an area of low activity and I wsih to define an
annular ROI to measure the maximum, minimum, mean and standard deviation
of the counts in the hot and cold areas.

Any suggestions would be gratefully received

Thanks
Graham