Like our CaptureManager and WindowManager classes, our filters should be reusable outside Cameo. Thus, we should separate the filters into their own Python module or file.
Let's create a file called filters.py in the same directory as cameo.py. We need the following import statements in filters.py:
import cv2 import numpy import utils
Let's also create a file called utils.py in the same directory. It should contain the following import statements:
import cv2 import numpy import scipy.interpolate
We will be adding filter functions and classes to filters.py, while more general-purpose math functions will go in utils.py.