Index: trunk/Ohana/src/opihi/dvo/ImageOps.c
===================================================================
--- trunk/Ohana/src/opihi/dvo/ImageOps.c	(revision 4585)
+++ trunk/Ohana/src/opihi/dvo/ImageOps.c	(revision 4689)
@@ -11,4 +11,5 @@
   double r, d, X, Y, x[4], y[4], Rmin, Rmax, Rmid;
 
+  Rmin = Rmax = Rmid = 0;
   if (RegionSelect) {
     Rmin = graph[0].coords.crval1 - 182.0;