By now, we should have an application that displays a camera feed, listens for keyboard input, and (on command) records a screenshot or screencast. We are ready to extend the application by inserting some image-filtering code (Chapter 3, Filtering Images) between the start and end of each frame. Optionally, we are also ready to integrate other camera drivers or application frameworks (Appendix A, Integrating with Pygame, OpenCV Computer Vision with Python) besides the ones supported by OpenCV.

We also now have the knowledge to process images and understand the principle of image manipulation through the NumPy arrays. This forms the perfect foundation to understand the next topic, filtering images.