public override void ViewDidLoad()
        {
            base.ViewDidLoad();
            _imageProcessor = new SBSDKBusinessCardsImageProcessor();

            _imageProcessor.PerformOCR          = true;
            _imageProcessor.PerformAutoRotation = true;

            _scannerController = new SBSDKMultipleObjectScannerViewController(this, null);

            // Qualify only square-like objects:
            //_scannerController.AspectRatioRange = new SBSDKAspectRatioRange(
            //    new SBSDKPageAspectRatio(0.9f, 1.0f), new SBSDKPageAspectRatio(1.1f, 1.0f)
            //);
            _scannerController.WeakDelegate = this;
            collectionView.Delegate         = this;
        }
                                                 
 } 


 public partial class BusinessCardsDemoViewController : UIViewController, ISBSDKMultipleObjectScannerViewControllerDelegate, IUICollectionViewDelegate, IUICollectionViewDataSource
    { 

 private SBSDKMultipleObjectScannerViewController _scannerController; 
 private SBSDKBusinessCardsImageProcessor _imageProcessor; 
 private BusinessCard _selectedCard; 
 private NSArray <SBSDKOCRResult> _ocrResults; 
 private ISBSDKImageStoring _storage = new SBSDKIndexedImageStorage(); 
 private bool _isProcessing; 

 public BusinessCardsDemoViewController(IntPtr handle) : base(handle) 
{
} 

 public override void ViewDidLoad() 
{
 base.ViewDidLoad(); 
 _imageProcessor = new SBSDKBusinessCardsImageProcessor(); 

 _imageProcessor.PerformOCR = true; 
 _imageProcessor.PerformAutoRotation = true;

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       _scannerController = new SBSDKMultipleObjectScannerViewController(this, null); 
 _scannerController.WeakDelegate = this; 
 collectionView.Delegate = this; 
} 

 public override void PrepareForSegue(UIStoryboardSegue segue, NSObject sender)