IronOCR 中處理斜線零的問題

Curtis Chau

更新:2026年4月21日

Translated

View the article in English

帶斜線的零（/0）無法正確識別，被誤判為 g、6 或 8？

這可能是 Tesseract 語言套件所面臨的問題。

以下語言套件可協助解決零前導數字被截斷的問題：
SlashedZeroOCR

此功能可與 IronOCR 功能配合使用，以載入自訂語言套件：
IronOCR 中的自訂語言範例

// Import the IronOcr namespace
using IronOcr;

class Program
{
    static void Main(string[] args)
    {
        // Initialize IronTesseract class
        var Ocr = new IronTesseract();

        // Use a custom Tesseract language file, which may help with recognizing slashed zeros
        Ocr.UseCustomTesseractLanguageFile("custom_tesseract_files/custom.traineddata");

        // Specify the OCR input image
        using (var Input = new OcrInput(@"images\image.png"))
        {
            // Perform OCR on the input image
            var Result = Ocr.Read(Input);

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

// Import the IronOcr namespace
using IronOcr;

class Program
{
    static void Main(string[] args)
    {
        // Initialize IronTesseract class
        var Ocr = new IronTesseract();

        // Use a custom Tesseract language file, which may help with recognizing slashed zeros
        Ocr.UseCustomTesseractLanguageFile("custom_tesseract_files/custom.traineddata");

        // Specify the OCR input image
        using (var Input = new OcrInput(@"images\image.png"))
        {
            // Perform OCR on the input image
            var Result = Ocr.Read(Input);

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

' Import the IronOcr namespace
Imports IronOcr

Friend Class Program
	Shared Sub Main(ByVal args() As String)
		' Initialize IronTesseract class
		Dim Ocr = New IronTesseract()

		' Use a custom Tesseract language file, which may help with recognizing slashed zeros
		Ocr.UseCustomTesseractLanguageFile("custom_tesseract_files/custom.traineddata")

		' Specify the OCR input image
		Using Input = New OcrInput("images\image.png")
			' Perform OCR on the input image
			Dim Result = Ocr.Read(Input)

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

$vbLabelText $csharpLabel