Update app.py

app.py

@@ -50,7 +50,7 @@ def predict_caption(image, max_length):
         # get index with high probability
         yhat = np.argmax(yhat)
         # convert index to word
-        word = idx_to_word(yhat, lstm_tokenizer)
+        word = idx_to_word(yhat)
         # stop if word not found
         if word is None:
             break