MultithreadedTesseract OCR

VB C#

using IronOcr;

var ocrTesseract = new IronTesseract();

using (var ocrInput = new OcrInput())
{
    ocrInput.AddPdf("scan.pdf");

    // Image processing is automatically multi-threaded
    ocrInput.Deskew();

    // OCR reading is automatically multi-threaded too
    var ocrResult = ocrTesseract.Read(ocrInput);
}

Imports IronOcr

Private ocrTesseract = New IronTesseract()

Using ocrInput As New OcrInput()
	ocrInput.AddPdf("scan.pdf")

	' Image processing is automatically multi-threaded
	ocrInput.Deskew()

	' OCR reading is automatically multi-threaded too
	Dim ocrResult = ocrTesseract.Read(ocrInput)
End Using

Install-Package IronOcr

MultithreadedTesseract OCR

IronTesseract 2021 previously had a ReadMultithreaded method to allow .NET developers to read images and PDFs more efficiently.

This is no longer needed in 2022. All IronOCR image processing and OCR reading operations are multithreaded and do not require the developer to use a special API.

IronTesseract will automatically attempt to use all threads available on all cores, and will consider responsiveness on the main / GUI thread elegantly.

How to Use Tesseract Multi-threading

Install an OCR library to use Tesseract multi-threading
Make an IronTesseract object.
Use AddImage to construct an OcrInput and provide the image path into an object
Invoke all necessary methods for image processing.
Use the Read method to read the text