Update app.py

app.py

@@ -75,6 +75,8 @@ def yolov9_inference(model_id, img_path=None, vid_path=None, tracking_algorithm
             output_path =  run(weights=model_id, imgsz=(image_size,image_size), conf_thres=conf_threshold, iou_thres=iou_threshold, source=input_path, device='0', hide_conf= True)
         # Assuming output_path is the path to the output file
     _, output_extension = os.path.splitext(output_path)
+    output_image = None
+    output_video = None
     if output_extension.lower() in img_extensions:
         output_image = output_path  # Load the image file here
     elif output_extension.lower() in vid_extensions: