public override void ViewDidDisappear(bool animated)
{
base.ViewDidDisappear(animated);
//remove result view
resultView.RemoveFromSuperview();
resultView.Dispose();
resultView = null;
//we have to erase the scan view so that there are no dependencies for the viewcontroller left.
scanView.RemoveFromSuperview();
scanView.Dispose();
scanView = null;
base.Dispose();
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
// Initializing the IBAN module.
CGRect frame = UIScreen.MainScreen.ApplicationFrame;
frame = new CGRect(frame.X,
frame.Y + NavigationController.NavigationBar.Frame.Size.Height,
frame.Width,
frame.Height - NavigationController.NavigationBar.Frame.Size.Height);
scanView = new AnylineOCRModuleView(frame);
if (error != null)
{
(alert = new UIAlertView("Error", error.DebugDescription, null, "OK", null)).Show();
}
// We'll define the OCR Config here:
ocrConfig = new ALOCRConfig();
ocrConfig.CharHeight = new ALRange {
min = 30, max = 60
};
ocrConfig.TesseractLanguages = new string[] { @"eng_no_dict", @"deu" };
ocrConfig.CharWhiteList = "ABCDEFGHIJKLMNOPQRSTUVWXYZ1234567890";
ocrConfig.MinConfidence = 65;
ocrConfig.ScanMode = ALOCRScanMode.Line;
ocrConfig.ValidationRegex = "^[A-Z]{2}([0-9A-Z]\\s*){13,32}$";
ocrConfig.RemoveSmallContours = true;
// Experimental parameter to set the minimum sharpness (value between 0-100; 0 to turn sharpness detection off)
// The goal of the minimum sharpness is to avoid a time consuming ocr step,
// if the image is blurry and good results are therefore not likely.
ocrConfig.MinSharpness = 66;
// We tell the module to bootstrap itself with the license key and delegate. The delegate will later get called
// by the module once we start receiving results.
error = null;
success = scanView.SetupWithLicenseKey(licenseKey, this.Self, ocrConfig, out error);
// SetupWithLicenseKey:delegate:error returns true if everything went fine. In the case something wrong
// we have to check the error object for the error message.
if (!success)
{
// Something went wrong. The error object contains the error description
(alert = new UIAlertView("Error", error.DebugDescription, null, "OK", null)).Show();
}
// We stop scanning manually
scanView.CancelOnResult = false;
// We load the UI config for our IBAN view from a .json file.
String configFile = NSBundle.MainBundle.PathForResource(@"Modules/OCR/iban_config", @"json");
scanView.CurrentConfiguration = ALUIConfiguration.CutoutConfigurationFromJsonFile(configFile);
scanView.TranslatesAutoresizingMaskIntoConstraints = false;
// After setup is complete we add the module to the view of this view controller
View.AddSubview(scanView);
/*
* The following view will present the scanned values. Here we start listening for taps
* to later dismiss the view.
*/
resultView = new ResultOverlayView(new CGRect(0, 0, View.Frame.Width, View.Frame.Height), UIImage.FromBundle(@"drawable/iban_background.png"));
resultView.AddGestureRecognizer(new UITapGestureRecognizer(this, new ObjCRuntime.Selector("ViewTapSelector:")));
resultView.Center = View.Center;
resultView.Alpha = 0;
View.AddSubview(resultView);
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
// Initializing the Voucher Code module.
CGRect frame = UIScreen.MainScreen.ApplicationFrame;
frame = new CGRect(frame.X,
frame.Y + NavigationController.NavigationBar.Frame.Size.Height,
frame.Width,
frame.Height - NavigationController.NavigationBar.Frame.Size.Height);
scanView = new AnylineOCRModuleView(frame);
SetupLicensePlateConfig();
// We'll copy the required traineddata files here
error = null;
success = scanView.CopyTrainedData(NSBundle.MainBundle.PathForResource(@"Modules/OCR/Alte", @"traineddata"),
@"f52e3822cdd5423758ba19ed75b0cc32", out error);
if (!success)
{
(alert = new UIAlertView("Error", error.DebugDescription, null, "OK", null)).Show();
}
error = null;
success = scanView.CopyTrainedData(NSBundle.MainBundle.PathForResource(@"Modules/OCR/Arial", @"traineddata"),
@"9a5555eb6ac51c83cbb76d238028c485", out error);
if (!success)
{
(alert = new UIAlertView("Error", error.DebugDescription, null, "OK", null)).Show();
}
error = null;
success = scanView.CopyTrainedData(NSBundle.MainBundle.PathForResource(@"Modules/OCR/GL-Nummernschild-Mtl7_uml", @"traineddata"),
@"8ea050e8f22ba7471df7e18c310430d8", out error);
if (!success)
{
(alert = new UIAlertView("Error", error.DebugDescription, null, "OK", null)).Show();
}
// We tell the module to bootstrap itself with the license key and delegate. The delegate will later get called
// by the module once we start receiving results.
error = null;
success = scanView.SetupWithLicenseKey(licenseKey, this.Self, ocrConfig, out error);
// SetupWithLicenseKey:delegate:error returns true if everything went fine. In the case something wrong
// we have to check the error object for the error message.
if (!success)
{
// Something went wrong. The error object contains the error description
(alert = new UIAlertView("Error", error.DebugDescription, null, "OK", null)).Show();
}
// We stop scanning manually
scanView.CancelOnResult = false;
// We load the UI config for our VoucherCode view from a .json file.
String configFile = NSBundle.MainBundle.PathForResource(@"Modules/OCR/license_plate_view_config", @"json");
scanView.CurrentConfiguration = ALUIConfiguration.CutoutConfigurationFromJsonFile(configFile);
scanView.TranslatesAutoresizingMaskIntoConstraints = false;
// After setup is complete we add the module to the view of this view controller
View.AddSubview(scanView);
/*
* The following view will present the scanned values. Here we start listening for taps
* to later dismiss the view.
*/
resultView = new ResultOverlayView(new CGRect(0, 0, View.Frame.Width, View.Frame.Height), UIImage.FromBundle(@"drawable/license_plate_background.png"));
resultView.AddGestureRecognizer(new UITapGestureRecognizer(this, new ObjCRuntime.Selector("ViewTapSelector:")));
resultView.Center = View.Center;
resultView.Alpha = 0;
resultView.Result.Center = new CGPoint(View.Center.X, View.Center.Y);
resultView.Result.Font = UIFont.BoldSystemFontOfSize(27);
resultView.Result.TextColor = UIColor.Black;
View.AddSubview(resultView);
}
public override void ViewDidLoad()
{
base.ViewDidLoad();
// Initializing the Bottlecap scan module.
CGRect frame = UIScreen.MainScreen.ApplicationFrame;
frame = new CGRect(frame.X,
frame.Y + NavigationController.NavigationBar.Frame.Size.Height,
frame.Width,
frame.Height - NavigationController.NavigationBar.Frame.Size.Height);
scanView = new AnylineOCRModuleView(frame);
// We'll define the OCR Config here:
ocrConfig = new ALOCRConfig();
ocrConfig.CharHeight = new ALRange {
min = 14, max = 95
};
ocrConfig.TesseractLanguages = new string[] { "bottlecap" };
ocrConfig.CharWhiteList = "123456789ABCDEFGHJKLMNPRSTUVWXYZ";
ocrConfig.MinConfidence = 75;
ocrConfig.ScanMode = ALOCRScanMode.Grid;
ocrConfig.CharCountX = 3;
ocrConfig.CharCountY = 3;
ocrConfig.CharPaddingXFactor = 0.3;
ocrConfig.CharPaddingYFactor = 0.5;
ocrConfig.IsBrightTextOnDark = true;
ocrConfig.ValidationRegex = "^[0-9A-Z]{3}\n[0-9A-Z]{3}\n[0-9A-Z]{3}";
// We tell the module to bootstrap itself with the license key and delegate. The delegate will later get called
// by the module once we start receiving results.
error = null;
success = scanView.SetupWithLicenseKey(licenseKey, this.Self, ocrConfig, out error);
// SetupWithLicenseKey:delegate:error returns true if everything went fine. In the case something wrong
// we have to check the error object for the error message.
if (!success)
{
// Something went wrong. The error object contains the error description
(alert = new UIAlertView("Error", error.DebugDescription, null, "OK", null)).Show();
}
// We stop scanning manually
scanView.CancelOnResult = false;
// We load the UI config for our Bottlecap view from a .json file.
String configFile = NSBundle.MainBundle.PathForResource(@"Modules/OCR/bottlecap_config", @"json");
scanView.CurrentConfiguration = ALUIConfiguration.CutoutConfigurationFromJsonFile(configFile);
scanView.TranslatesAutoresizingMaskIntoConstraints = false;
// After setup is complete we add the module to the view of this view controller
View.AddSubview(scanView);
/*
* The following view will present the scanned values. Here we start listening for taps
* to later dismiss the view.
*/
resultView = new ResultOverlayView(new CGRect(0, 0, View.Frame.Width, View.Frame.Height), UIImage.FromBundle(@"drawable/bottle_background.png"));
resultView.AddGestureRecognizer(new UITapGestureRecognizer(this, new ObjCRuntime.Selector("ViewTapSelector:")));
resultView.Result.Font = UIFont.BoldSystemFontOfSize(17);
resultView.Result.TextColor = UIColor.Black;
resultView.Result.Lines = 3;
resultView.Result.LineBreakMode = UILineBreakMode.Clip;
resultView.Center = View.Center;
resultView.Alpha = 0;
View.AddSubview(resultView);
}
