Update multitracker.py

Author: sturkmen72

modules/tracking/samples/multitracker.py

@@ -29,9 +29,9 @@
         break
 
     if not init_once:
-        ok = tracker.add(cv.TrackerMIL_create(), image, bbox1)
-        ok = tracker.add(cv.TrackerMIL_create(), image, bbox2)
-        ok = tracker.add(cv.TrackerMIL_create(), image, bbox3)
+        ok = tracker.add(cv.legacy.TrackerMIL_create(), image, bbox1)
+        ok = tracker.add(cv.legacy.TrackerMIL_create(), image, bbox2)
+        ok = tracker.add(cv.legacy.TrackerMIL_create(), image, bbox3)
         init_once = True
 
     ok, boxes = tracker.update(image)