Fix

inference.py

@@ -65,12 +65,14 @@ def draw_boxes(frame, detections, actions, do_classify):
   return frame
 
 def draw_classes(frame, actions):
-  label=['Airplane']
+  height, width, _ = frame.shape
+  labels = np.zeros((height, width), dtype=int)
   label_names = ['Airplane\n' + '\n'.join(actions)]
   frame = label2rgb(
+    label=labels,
     image=frame,
-    label=label,
-    label_names=label_names)
+    label_names=label_names,
+    alpha=0.3)
   return frame
 
 def FrameProcessor(detector, classifier, config: Config):