import numpy, cv2 # pip3 install opencv-contrib-python-headless frame = numpy.zeros((16,16,3), numpy.uint8) hash_blockmean = cv2.img_hash_BlockMeanHash.create ...

When you install cv2-tools, it will automatically download numpy but not opencv becouse in some cases you will need another version. from cv2_tools.Managment import ManagerCV2 import cv2 # ...