input details index get back

extractor.py

@@ -28,7 +28,7 @@ def get_card_xy(model_path, image_path):
     image_np = image_np[np.newaxis, :]
 
     # inference
-    interpreter.set_tensor(int(input_details[0]['index']+1), image_np)
+    interpreter.set_tensor(input_details[0]['index'], image_np)
     interpreter.invoke()
 
     # Obtaining output results