title: How to make a keras model return nothing on making prediction when no object is found in an image?
body: <p>I have made a Keras model that can predict 5 types of plants (mint, basil, aubergine, strawberry, tomato). Model accuracy is 97% which I am happy about but the problem is when I feed it image that does not contain any of the previous labels it still make a prediction and returns false result. Is there a way to make a model to return nothing or something like message saying no labels in the pic?</p>