ID card recognition settings

Aspose.OCR for .NET allows for very flexible customization of ID card recognition accuracy, performance, and other settings by configuring the properties of the IDCardRecognitionSettings object.

These settings are specifically tailored for processing scanned or photographed ID cards.

Setting	Type	Default value	Description
AllowedSymbols	string	All characters of the selected language	The whitelist of characters Aspose.OCR engine will look for.
IgnoredSymbols	string	none	A blacklist of characters that are ignored during recognition.
Language	Aspose.OCR.Language	Aspose.OCR.Language.None	Specify a language for recognition.
ThreadsCount	integer	auto	The number of CPU threads used for recognition.
AutomaticColorInversion	boolean	true	Improve recognition accuracy of white text on a dark/black background. If you are not optimizing every aspect of recognition (for example, for online applications or entry-level devices), leave this setting set to true.

Applicable to

• Extracting text from an ID card

Example

The following code example shows how to fine-tune ID card recognition:

Aspose.OCR.AsposeOcr recognitionEngine = new Aspose.OCR.AsposeOcr();
// Add images to OcrInput object
Aspose.OCR.OcrInput input = new Aspose.OCR.OcrInput(Aspose.OCR.InputType.SingleImage);
input.Add("ID1.png");
input.Add("ID2.png");
// Recognition settings
Aspose.OCR.IDCardRecognitionSettings recognitionSettings = new Aspose.OCR.IDCardRecognitionSettings();
recognitionSettings.Language = Aspose.OCR.Language.Latin;
// Recognize ID cards
Aspose.OCR.OcrOutput results = recognitionEngine.RecognizeIDCard(input, recognitionSettings);
foreach(Aspose.OCR.RecognitionResult result in results)
{
	Console.WriteLine(result.RecognitionText);
}