过滤器向导

VB C#

using IronOcr;
using System;

var ocrTesseract = new IronTesseract();

// WIZARD - If you are unsure which filters to use,
// use the debug-wizard to test all combinations:

string codeToRun = OcrInputFilterWizard.Run(@"images\image.png", out double confidence, ocrTesseract);
Console.WriteLine($"Confidence: {confidence}");
Console.WriteLine(codeToRun);

Imports IronOcr
Imports System

Private ocrTesseract = New IronTesseract()

' WIZARD - If you are unsure which filters to use,
' use the debug-wizard to test all combinations:

Private codeToRun As String = OcrInputFilterWizard.Run("images\image.png", Double confidence, ocrTesseract)
Console.WriteLine($"Confidence: {confidence}")
Console.WriteLine(codeToRun)

Install-Package IronOcr

过滤器向导

IronOCR 包含一个 OcrInputFilterWizard 类，该类可自动评估预处理过滤器的组合，以最大限度地提高 OCR 的可信度。当您不确定哪种过滤器能产生最好的效果时，这就是理想的选择。 OcrInputFilterWizard.Run(...)不需要手动应用对比度、锐化、二值化等，而是执行暴力扫描以获得最佳设置，并返回最佳过滤器组合或代码片段以重现它。

您可以应用的可选过滤器

input.Contrast()input.Sharpen()input.Binarize()input.ToGrayScale()input.Invert()input.Deskew()input.Scale(...)input.Denoise()input.DeepCleanBackgroundNoise()input.EnhanceResolution()input.Dilate(), <代码>input.Erode()提高图像质量，获得更好的 OCR 结果。