a demo for Gradio

Here is a demo for Gradio:

1. how to install Gradio:

    pip install gradio

2. demo:

import gradio as gr
import cv2

def to_black(image):
    output = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)
    return output

interface = gr.Interface(fn=to_black, inputs="image", outputs="image")
interface.launch()

        .launch(share=True): can create a public ip

        .launch(server_name=“0.0.0.0”): can use local ip to access