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
OcrInputobject using the image path as a parameter. - Pass the
OcrInputobject to theReadmethod 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.
