Fixes for the RPi

detect.py

@@ -1,13 +1,14 @@
 # sample code from https://stackoverflow.com/questions/43111029/how-to-find-the-average-colour-of-an-image-in-python-with-opencv
 
 import matplotlib
-matplotlib.use('TkAgg')
+matplotlib.use('Agg')
 
 import matplotlib.pyplot as plt
 import cv2
 import numpy as np
 from skimage import io
 import colorsys
+import time
 
 img_path = 'input.jpg'