@interface SBSDKUIFinderDocumentScannerViewController
    : SBSDKUICameraViewController

A highly customizable camera-based view controller to scan a single documents of a certain aspect ratio. An edge-detection based algorithm finds documents in the camera stream within the view finder. A manual or automatic high resolution snapshot can be made. Based on the detected area of the document in the photo, the photo is cropped and perspective-corrected, so that a nice flattened image of the document only is created.