Extracting text from an image

To extract text from a raster image, use RecognizeImage method of Aspose.OCR.AsposeOcr class. This method supports JPEG, PNG, BMP, GIF, and single-page TIFF images.

This method allows you to optionally customize recognition accuracy, performance, and other settings.

Depending on the parameters, the method can either return a string with line breaks, or a RecognitionResult object that allows you to perform advanced manipulations with recognition results: automatically correct spelling, get image regions and save results in various formats.

Read image from path

Aspose.OCR.AsposeOcr recognitionEngine = new Aspose.OCR.AsposeOcr();
string result = recognitionEngine.RecognizeImage("source.png");
Console.WriteLine(result);

Read image from memory

Aspose.OCR.AsposeOcr recognitionEngine = new Aspose.OCR.AsposeOcr();
using(MemoryStream ms = new MemoryStream())
{
	using(FileStream fs = new FileStream("source.png", FileMode.Open, FileAccess.Read))
	{
		fs.CopyTo(ms);
		string result = recognitionEngine.RecognizeImage(ms);
		Console.WriteLine(result);
	}
}

Post-process recognition results

Aspose.OCR.AsposeOcr recognitionEngine = new Aspose.OCR.AsposeOcr();
// Customize recognition
Aspose.OCR.RecognitionSettings recognitionSettings = new Aspose.OCR.RecognitionSettings();
recognitionSettings.Language = Aspose.OCR.Language.Ukr;
Aspose.OCR.RecognitionResult result = recognitionEngine.RecognizeImage("source.png", recognitionSettings);
// Show non-critical recognition problems
foreach(string warning in result.Warnings)
{
	Console.WriteLine(warning);
}
// Get recognition results as JSON
string resultJson = result.GetJson();