It's been a while since we talked about the specifics for the example of this chapter, so let's quickly revise what we are trying to achieve before jumping to the project.
HoloLens includes a world-facing camera color mounted on the front of the device, which enables apps to see what the user sees. The example for this chapter is to create an application that captures what the user sees (the frames from this camera) and uses Microsoft's Cognitive Service Face API that we just set up to detect and identify faces. When a face is recognized, we will display their name along with a predicted age and gender. This example was based on the Microsoft's Holographic face tracking sample, which is available at https://github.com/Microsoft/Windows-universal-samples/tree/master/Samples/HolographicFaceTracking.
Let's start by launching the starter solution for this chapter; this can be found in the Chapter2\Starter directory from the https://github.com/PacktPublishing/Microsoft-HoloLens-By-Example...