public async void Sample3AllModes()
{
foreach (var engineMode in Enum.GetValues(typeof(OcrEngineMode)))
{
Console.WriteLine("Engine mode: {0}", engineMode);
await _api.Init("eng", (OcrEngineMode)engineMode);
foreach (var segmentationMode in Enum.GetValues(typeof(PageSegmentationMode)))
{
_api.SetPageSegmentationMode((PageSegmentationMode)segmentationMode);
using (var stream = LoadSample("sample3.png")) {
var result = await _api.SetImage(stream);
Assert.IsTrue(result);
Console.WriteLine("Segmentation mode: {0}, result: \"{1}\"", segmentationMode,
_api.Text.Replace("\n", " "));
}
}
}
}
protected override async void OnActivityResult(int requestCode, Android.App.Result resultCode, Intent data)
{
base.OnActivityResult(requestCode, resultCode, data);
ProgressDialog progress = new ProgressDialog(this);
progress.Indeterminate = true;
progress.SetProgressStyle(ProgressDialogStyle.Spinner);
progress.SetMessage("Kraunama...");
progress.SetCancelable(false);
progress.Show();
try
{
System.Console.WriteLine("OnActivityLoad eventas");
Intent mediaScanIntent = new Intent(Intent.ActionMediaScannerScanFile);
Uri contentUri = Uri.FromFile(Failosas._file);
mediaScanIntent.SetData(contentUri);
// SendBroadcast(mediaScanIntent);
int height = Android.Content.Res.Resources.System.DisplayMetrics.HeightPixels;
int width = Android.Content.Res.Resources.System.DisplayMetrics.WidthPixels;
Failosas.bitmap = Failosas._file.Path.LoadAndResizeBitmap(width, height);
if (Failosas.bitmap != null)
{
System.Console.WriteLine("Got bitmap, doing OCR...");
TesseractApi api = new TesseractApi(mContext, AssetsDeployment.OncePerInitialization);
await api.Init("eng");
api.SetPageSegmentationMode(Tesseract.PageSegmentationMode.SparseText);
await api.SetImage(Failosas._file.Path);
RunOnUiThread(() => {
string text = api.Text;
System.Console.Error.WriteLine("Gautas text: " + text);
Android.Widget.Toast.MakeText(this, "Pagaliau! :D", Android.Widget.ToastLength.Long).Show();
progress.Hide();
Android.Support.V7.App.AlertDialog.Builder alert = new Android.Support.V7.App.AlertDialog.Builder(this);
alert.SetTitle("Gavom teksta");
alert.SetMessage(text);
alert.SetPositiveButton("nieko gero! :D", (senderAlert, args) =>
{
Android.Widget.Toast.MakeText(this, "Gerai kad supratai!", Android.Widget.ToastLength.Short).Show();
});
Dialog dialog = alert.Create();
dialog.Show();
});
}
else
{
Android.Widget.Toast.MakeText(this, "Blogas image!", Android.Widget.ToastLength.Short).Show();
}
}
catch (Exception ex)
{
System.Console.WriteLine("Klaida darant OCR: " + ex.ToString());
progress.Hide();
Android.Widget.Toast.MakeText(this, "Klaida darant OCR!", Android.Widget.ToastLength.Long).Show();
}
finally
{
GC.Collect();
progress.Hide();
}
}