MultithreadedTesseract OCR

VB C#

using IronOcr;

var ocrTesseract = new IronTesseract();

using var ocrInput = new OcrInput();
ocrInput.LoadPdf("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()

Private ocrInput = New OcrInput()
ocrInput.LoadPdf("scan.pdf")

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

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

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

using IronOcr; // Import the IronOcr namespace

class Program
{
    static void Main()
    {
        // Initialize a new instance of IronTesseract
        var Ocr = new IronTesseract();

        // Create a new OcrInput object and add an image for OCR processing
        using (var Input = new OcrInput())
        {
            // Add the image file path to the OcrInput object
            Input.AddImage("path/to/your/image.png");

            // Perform OCR on the input image to extract text
            var Result = Ocr.Read(Input);

            // Output the recognized text to the console
            System.Console.WriteLine(Result.Text);
        }
    }
}

using IronOcr; // Import the IronOcr namespace

class Program
{
    static void Main()
    {
        // Initialize a new instance of IronTesseract
        var Ocr = new IronTesseract();

        // Create a new OcrInput object and add an image for OCR processing
        using (var Input = new OcrInput())
        {
            // Add the image file path to the OcrInput object
            Input.AddImage("path/to/your/image.png");

            // Perform OCR on the input image to extract text
            var Result = Ocr.Read(Input);

            // Output the recognized text to the console
            System.Console.WriteLine(Result.Text);
        }
    }
}

Imports IronOcr ' Import the IronOcr namespace

Friend Class Program
	Shared Sub Main()
		' Initialize a new instance of IronTesseract
		Dim Ocr = New IronTesseract()

		' Create a new OcrInput object and add an image for OCR processing
		Using Input = New OcrInput()
			' Add the image file path to the OcrInput object
			Input.AddImage("path/to/your/image.png")

			' Perform OCR on the input image to extract text
			Dim Result = Ocr.Read(Input)

			' Output the recognized text to the console
			System.Console.WriteLine(Result.Text)
		End Using
	End Sub
End Class

$vbLabelText $csharpLabel

The IronTesseract object is used to handle the OCR process.
AddImage is used to specify which image should be analyzed.
The Read method processes the image and outputs the result, which contains the recognized text.
The multithreading capabilities of IronOCR work automatically behind the scenes, maximizing CPU efficiency.