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()