Update app.py

app.py

@@ -3047,23 +3047,22 @@ def stabilize_frame(frame, prev_frame_gray, current_frame_gray):
     return stabilized_frame
 
 def create_tracker(tracker_type="CSRT"):
-    """Create an OpenCV tracker of the specified type"""
-    if tracker_type == 'BOOSTING':
-        return cv2.legacy.TrackerBoosting_create()
-    elif tracker_type == 'MIL':
-        return cv2.legacy.TrackerMIL_create()
-    elif tracker_type == 'KCF':
-        return cv2.legacy.TrackerKCF_create()
-    elif tracker_type == 'TLD':
-        return cv2.legacy.TrackerTLD_create()
-    elif tracker_type == 'MEDIANFLOW':
-        return cv2.legacy.TrackerMedianFlow_create()
-    elif tracker_type == 'CSRT':
-        return cv2.legacy.TrackerCSRT_create()
-    elif tracker_type == 'MOSSE':
-        return cv2.legacy.TrackerMOSSE_create()
+    (major_ver, minor_ver, subminor_ver) = cv2.__version__.split('.')
+    
+    # For OpenCV 4.5.x and newer
+    if int(major_ver) >= 4 and int(minor_ver) >= 5:
+        if tracker_type == "CSRT":
+            return cv2.legacy.TrackerCSRT_create()
+        elif tracker_type == "KCF":
+            return cv2.legacy.TrackerKCF_create()
+        # Add other tracker types as needed
     else:
-        return cv2.legacy.TrackerCSRT_create()  # Default
+        # For older OpenCV versions
+        if tracker_type == "CSRT":
+            return cv2.TrackerCSRT_create()
+        elif tracker_type == "KCF":
+            return cv2.TrackerKCF_create()
+        # Add other tracker types as needed
 
 class ObjectTracker:
     """Manages object tracking across video frames"""