convert img to 8bit bmp

8bit.py

## Installation:
# python3 -m venv env
# . env/bin/activate
# pip install --upgrade pip
# pip install opencv-python

## Launch:
# python3 8bit.py


import cv2

# Load your image
image = cv2.imread('input.png')

# Convert the image to 8-bit color depth
image_8bit = cv2.cvtColor(image, cv2.COLOR_BGR2GRAY)

# Save the 8-bit image
cv2.imwrite('syncthing_app.bmp', image_8bit)