extension CameraViewController: AVCapturePhotoCaptureDelegate {
    func photoOutput(_ output: AVCapturePhotoOutput, didFinishProcessingPhoto photo: AVCapturePhoto, error: Error?) {
        if let imageData = photo.fileDataRepresentation() {
            self.image = UIImage(data: imageData)
            let text = TextViewController()
            text.image = self.image
            self.present(text, animated: true, completion: nil)
        }
    }
}

@IBOutlet weak var textView: UITextView!
    var image: UIImage?

    override func viewDidLoad() {
        super.viewDidLoad()

        if let tesseract = G8Tesseract(language: "eng") {
            tesseract.delegate = self
            tesseract.image = self.image
            tesseract.recognize()

            textView.text = tesseract.recognizedText
        }
}