Get dominant color from an image and determin the operating state of a decalcifying device

status.py

import io
import sys
import os
from colorthief import ColorThief
from PIL import Image


original = Image.open(sys.argv[1])
left = 950
right = left + 50
top = 1200
bottom = top + 50
cropped = original.crop((left, top, right, bottom))
memfile = io.BytesIO()
cropped.save(memfile, format="JPEG")
color_thief = ColorThief(memfile)
dominant_color = color_thief.get_color(quality=1)
mode = "unknown"
if dominant_color[2] > 200:
    mode = "normal"
if dominant_color[1] > 150:
    mode = "regeneration"
with open("mode.txt", "w") as f:
    f.write(mode)