app.py

import gradio as gr


def draw_mask(args):
    init_image = args.get("image")
    mask = args.get("mask")
    mask = mask.convert("RGB").resize((512, 512))
    init_image = init_image.convert("RGB").resize((512, 512))
    return mask


gr.Interface(
    fn=draw_mask,
    inputs=gr.Image(
        source="upload",
        tool="sketch",
        elem_id="image_upload",
        type="pil",
        label="Upload",
    ).style(height=400),
    outputs=gr.Image(label="Result"),
).launch()