You just need to take source code of "Luxand Face Recognition" from Luxand SDK. ( [url removed, login to view] )
And add abilitys to select the camera (front\rear) and its resolution from the list of available video resolutions for selected camera.
It is necessary that application performs recognition in selected resolution and the result is scaled to fit the screen of the device with preserv aspect ratio.
You also need to add the ability to enter and save the serial number for Luxand SDK.
We need .apk and application source code.