Concentric Rings Tool

[Jody Wujcik]

I want to place concentric circles on top of my images.  I need to be able to adjust the radii of the circles.  ImageJ has a concentric rings tool which I tried to use.  Will this tool be able to do what I want?  Does anyone know how (or if) the
circles can be adjusted?  When I tried using it, very small diameter circles appeared.  I need much larger ones that will extend to the outside margins of my images.  
Any input would be appreciated.  Thanks!



Jody M. Wujcik
Graduate Research Assist.
School of Marine Sciences
University of Maine
5751 Murray Hall
Orono, ME 04469-5751

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