Update app.py

app.py

@@ -4,7 +4,7 @@ from transformers import pipeline
 caption = pipeline("image-to-text", model="Salesforce/blip-image-captioning-large")
 
 def greet(img):
-    return caption(img, max_length='50')
+    return caption(img, max_length=50)
 
 iface = gr.Interface(fn=greet, inputs=gr.Image(type='filepath'), outputs="text")
 iface.launch()