Index: trunk/Ohana/src/opihi/dvo/ImageOps.c
===================================================================
--- trunk/Ohana/src/opihi/dvo/ImageOps.c	(revision 18375)
+++ trunk/Ohana/src/opihi/dvo/ImageOps.c	(revision 19823)
@@ -65,4 +65,5 @@
 	if ((j == 0) && (r < Rmin)) flipped = TRUE; 
 	if ((j == 0) && (r > Rmax)) flipped = TRUE; 
+	r = ohana_normalize_angle (r);
 	while (flipped && (r < Rmid)) r+= 360.0;
 	while (flipped && (r > Rmid)) r-= 360.0;