app.py

import gradio as gr
from Blur import motion_blur, background_motion_blur

def blur(img, distance_blur, amount_blur, amount_subject):
    return background_motion_blur(img, distance_blur, amount_blur, amount_subject)

iface = gr.Interface(fn=blur, 
                     inputs=[gr.Image(type='pil'), gr.Slider(label='Blur Distance', minimum=0, maximum=500, value=100), gr.Slider(label='Blur Amount', minimum=0.0, maximum=1.0, value=0.75), gr.Slider(label='Subject Amount', minimum=0.0, maximum=1.0, value=1.0)], 
                     outputs="text")
iface.launch()