Update OpenCVAnimOperator.py

fixing error: (-5:Bad argument) in function 'circle'

Author: joeVenner

OpenCVAnimOperator.py

@@ -195,7 +195,7 @@ def modal(self, context, event):
 
                     # draw face markers
                     for (x, y) in shape:
-                        cv2.circle(image, (x, y), 2, (0, 255, 255), -1)
+                        cv2.circle(image, (int(x), int(y)), 2, (0, 255, 255), -1)
 
             # draw detected face
             for (x,y,w,h) in faces: