Learning OpenCV 4 Computer Vision with Python 3 - Third Edition

Applying everything with cameo.Cameo

Our application is represented by the Cameo class with two methods: run and onKeypress. On initialization, a Cameo object creates a WindowManager object with onKeypress as a callback, as well as a CaptureManager object using a camera (specifically, a cv2.VideoCapture object) and the same WindowManager object. When run is called, the application executes a main loop in which frames and events are processed.

As a result of event processing, onKeypress may be called. The spacebar causes a screenshot to be taken, Tab causes a screencast (a video recording) to start/stop, and Esc causes the application to quit.

In the same directory as managers.py, let's create a file called cameo.py, where we will implement ...