import gradio as gr
from PIL import Image

binary_file_path = 'data.bin'

def i2b(a):
    image = Image.fromarray(a, 'RGB')
    binary_data = image.tobytes()
    with open(binary_file_path, 'wb') as f:
        f.write(binary_data)
    return "", "data.bin"

with gr.Blocks() as demo:
    with gr.Row():
        img = gr.Image(type="pil")
        out = gr.File()
    img.upload(i2b, img, [img, out])


demo.launch()