Using Custom Language Files

VB C#

using IronOcr;
using System;


var ocrTesseract = new IronTesseract();

ocrTesseract.UseCustomTesseractLanguageFile("custom_tesseract_files/custom.traineddata");

using var ocrInput = new OcrInput();
ocrInput.LoadImage(@"images\image.png");

var ocrResult = ocrTesseract.Read(ocrInput);
Console.WriteLine(ocrResult.Text);

Imports IronOcr
Imports System


Private ocrTesseract = New IronTesseract()

ocrTesseract.UseCustomTesseractLanguageFile("custom_tesseract_files/custom.traineddata")

Dim ocrInput As New OcrInput()
ocrInput.LoadImage("images\image.png")

Dim ocrResult = ocrTesseract.Read(ocrInput)
Console.WriteLine(ocrResult.Text)

Install-Package IronOcr

Using Custom Language Files

Iron Tesseract OCR fully supports custom or downloaded languages and fonts following the Tesseract .traineddata file format standard (version 4 or above). You can find such files commonly on [Github.com]().

If you wish to train your own custom font support or language pack, we recommend reading our tutorial on creating custom tesseract language packs.

How to Use Tesseract Languages For OCR

Install an OCR library to choose Tesseract Language options.
Provide the custom language file while using UseCustomTesseractLanguageFile.
Create a OcrInput object using the image path as a parameter.
Pass the OcrInput object to the Read method to read the text in language.

using IronOcr;
using System;

class Program
{
    static void Main()
    {
        // Create an instance of the IronTesseract class which provides OCR functionality.
        var Ocr = new IronTesseract();

        // Specify the file path to your custom trained language data file.
        Ocr.Language = OcrLanguage.FromFile("path/to/your/custom.traineddata");

        // Create an OcrInput object using the path to the image file you want to process.
        var input = new OcrInput("path/to/your/image.png");

        // Use the Read method of IronTesseract to perform OCR on the input image.
        // This method processes the image and extracts text based on the specified language file.
        var result = Ocr.Read(input);

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

using IronOcr;
using System;

class Program
{
    static void Main()
    {
        // Create an instance of the IronTesseract class which provides OCR functionality.
        var Ocr = new IronTesseract();

        // Specify the file path to your custom trained language data file.
        Ocr.Language = OcrLanguage.FromFile("path/to/your/custom.traineddata");

        // Create an OcrInput object using the path to the image file you want to process.
        var input = new OcrInput("path/to/your/image.png");

        // Use the Read method of IronTesseract to perform OCR on the input image.
        // This method processes the image and extracts text based on the specified language file.
        var result = Ocr.Read(input);

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

Imports IronOcr
Imports System

Friend Class Program
	Shared Sub Main()
		' Create an instance of the IronTesseract class which provides OCR functionality.
		Dim Ocr = New IronTesseract()

		' Specify the file path to your custom trained language data file.
		Ocr.Language = OcrLanguage.FromFile("path/to/your/custom.traineddata")

		' Create an OcrInput object using the path to the image file you want to process.
		Dim input = New OcrInput("path/to/your/image.png")

		' Use the Read method of IronTesseract to perform OCR on the input image.
		' This method processes the image and extracts text based on the specified language file.
		Dim result = Ocr.Read(input)

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

$vbLabelText $csharpLabel

This C# code demonstrates how to use the IronTesseract library to perform OCR (Optical Character Recognition) with a custom language model. It involves setting up the language model, preparing the image input, and executing the OCR process to extract text, which is then printed to the console.