Fast recognition

Aspose.OCR can work in the fastest recognition mode that consumes minimum possible resources using RecognizeImageFast method of Aspose.OCR.AsposeOcr class.

Unlike regular recognition methods, this method can only read a single image and returns a string with extracted text.

Recognize image from path

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

Recognize 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.RecognizeImageFast(ms);
		Console.WriteLine(result);
	}
}

Performance impact

This method is about twice as fast as regular recognition.

Drawbacks

• This method only supports PNG, JPEG, BMP, GIF, and single-page TIFF images.
• This recognition method only works with high-quality scans without skew or distortion. However, you can preprocess an image before sending it to the OCR engine.
• Fast recognition cannot be customized with recognition settings.