app.py

import gradio as gr
from transformers import pipeline
pipe = pipeline("image-to-text",
               model = "Salesforce/blip-image-captioning-base")

def launch(input):
    out=pipe(input)
    return out[0]['generated_text']

iface = gr.Interface(launch,
                    inputs=gr.Image(type='pil'),
                    outputs="text")
iface.launch(share=True)