Android facial recognition

[Cronicle8]

Good day,

I'm building up a project in "AIR for Android" (AS3), it consists in connecting a camera(Fully functional), then do it like a game in PSVITA, cut only the face of a person after taking a picture of herself, i'm having a hard time developing this part. I downloaded Android SDK, how can i use this in AS3? Someone told me that with Google API's from Android SDK, i would be able to fulfill what i want.

My code is:

var camera:Camera = Camera.getCamera();
    var rec:Rectangle = new Rectangle(0,0,0,0);

    if (camera != null)
    {
    v.attachCamera(camera);
    addChild(v);
    }
    else
    {
    trace("You need a camera.");
    }

    ScreenshotButton.addEventListener(MouseEvent.CLICK,takescreenshotHandler);

    function takescreenshotHandler(event:MouseEvent):void{
        bitmapData.draw(v);
    }

Any help would be appreciated.