void Awake()
    {
        arFaceManager = gameObject.AddComponent <ARFaceManager>();
        arFaceManager.maximumFaceCount = 1;
        arFaceManager.facePrefab       = facePrefab;

        _memorizePhotos = GetComponent <MemorizePhotos>();
        overlayNum      = -1;

        canvasObj.name = "finding";
        if (GameObject.Find("Canvas") == false)
        {
            canvasObj.name = "Canvas";
            //DontDestroyOnLoad(canvasObj);
        }
        else
        {
            Destroy(canvasObj);
        }
        //LoadDefaultImages();
    }
 void Awake()
 {
     _eventSystem    = GameObject.Find("EventSystem").GetComponent <EventSystem>();
     _memorizePhotos = GetComponent <MemorizePhotos>();
 }