void ProcessTakenPicture(object sender, PictureCallbackEventArgs args)
{
cameraView.Post(delegate
{
progress.Visibility = ViewStates.Visible;
});
var bitmap = BitmapFactory.DecodeByteArray(args.image, 0, args.image.Length);
var matrix = new Matrix();
matrix.SetRotate(args.imageOrientation, bitmap.Width / 2, bitmap.Height / 2);
var result = Bitmap.CreateBitmap(bitmap, 0, 0, bitmap.Width, bitmap.Height, matrix, false);
var detector = sdk.MultipleObjectsDetector();
if (modParams != null)
{
detector.SetParams(modParams);
}
var polygons = detector.DetectOnBitmap(result, 0);
var pages = new List <Page>();
foreach (var polygon in polygons)
{
var id = sdk.PageFileStorage.Add(result);
var page = new Page(id, new List <PointF>(), DetectionResult.Ok, ImageFilterType.Binarized);
var cropped = sdk.PageProcessor().CropAndRotate(page, 0, polygon.PolygonF);
pages.Add(cropped);
}
var processor = sdk.BusinessCardsImageProcessor();
var languages = sdk.OcrRecognizer().InstalledLanguages;
ProcessedResults = processor.ProcessPages(pages, languages, true, true).ToList();
var i = 1;
foreach (var item in ProcessedResults)
{
var text = item.OcrResult.RecognizedText;
Console.WriteLine($"Recognized text on card {i}:\n {text}\n\n");
i++;
}
RunOnUiThread(delegate
{
Toast.MakeText(this, $"Found {ProcessedResults.Count} business cards", ToastLength.Short).Show();
progress.Visibility = ViewStates.Gone;
var intent = new Intent(this, typeof(BusinessCardsPreviewActivity));
StartActivity(intent);
});
}
protected override void OnCreate(Bundle savedInstanceState)
{
base.OnCreate(savedInstanceState);
SetContentView(Resource.Layout.BusinessCardsLayout);
cameraView = FindViewById <ScanbotCameraView>(Resource.Id.camera);
pictureCallbackDelegate = new PictureCallbackDelegate();
pictureCallbackDelegate.OnPictureTakenHandler += ProcessTakenPicture;
cameraView.AddPictureCallback(pictureCallbackDelegate);
cameraView.SetCameraOpenCallback(this);
cameraView.SetAutoFocusSound(false);
progress = FindViewById <ProgressBar>(Resource.Id.progressView);
shutterButton = FindViewById <ShutterButton>(Resource.Id.snap);
shutterButton.Click += delegate
{
cameraView.TakePicture(false);
};
shutterButton.Post(delegate
{
shutterButton.ShowAutoButton();
});
sdk = new IO.Scanbot.Sdk.ScanbotSDK(this);
var detector = sdk.MultipleObjectsDetector();
if (modParams != null)
{
detector.SetParams(modParams);
}
var handler = MultipleObjectsFrameHandler.Attach(cameraView, detector);
var polygon = FindViewById <MultiplePolygonsView>(Resource.Id.polygonView);
handler.AddResultHandler(new MultipleObjectsCallback());
FindViewById(Resource.Id.flash).Click += delegate
{
flashEnabled = !flashEnabled;
cameraView.UseFlash(flashEnabled);
};
}