Update app.py

app.py

@@ -390,7 +390,7 @@ def bot(history, temperature, top_p, max_output_tokens):
     generate_kwargs = dict(
         inputs=input_ids,
         streamer=streamer,
-        images=image_tensor if image_tensor > 0 else None,
+        images=image_tensor if image_tensor else None,
         do_sample=True,
         temperature=temperature,
         top_p=top_p,