Of all our apps, Lazy Eyes has the simplest user interface. It just shows a live video feed with a special effect that highlights motion. The parameters of the effect are quite complex and, moreover, modifying them at runtime would have a big effect on performance. Thus, we do not provide a user interface to reconfigure the effect, but we do provide many parameters in code to allow a programmer to create many variants of the effect and the app. Below the video panel, the app displays the current frame rate, measured in frames per second (FPS). The following screenshot illustrates one configuration of the app. This screenshot shows me eating cake. Because my hands and face are moving, we see an effect that looks like light and dark waves rippling near moving edges (the effect is more graceful in a live video than in a screenshot):
