controllers/utils.py

import io
from PIL import Image


# Convert image to bytes
def image_to_bytes(image: Image):
    img_byte_arr = io.BytesIO()
    image.save(img_byte_arr, format='PNG')
    return img_byte_arr.getvalue()


def bytes_to_image(image_bytes: bytes):
    return Image.open(io.BytesIO(image_bytes))