IronOCRで手書き画像から文字起こし・テキスト抽出を行う方法

using IronOcr;
using System;

// Instantiate OCR engine
var ocr = new IronTesseract();

// Load handwriting image
var inputHandWriting = new OcrInput();
inputHandWriting.LoadImage("handwritten.png");

// Perform OCR on the handwriting image
OcrHandwritingResult result = ocr.ReadHandwriting(inputHandWriting);

// Output the recognized handwritten text
Console.WriteLine(result.Text);
// Output the confidence score of the OCR result
Console.WriteLine(result.Confidence);

Imports IronOcr
Imports System

' Instantiate OCR engine
Dim ocr As New IronTesseract()

' Load handwriting image
Dim inputHandWriting As New OcrInput()
inputHandWriting.LoadImage("handwritten.png")

' Perform OCR on the handwriting image
Dim result As OcrHandwritingResult = ocr.ReadHandwriting(inputHandWriting)

' Output the recognized handwritten text
Console.WriteLine(result.Text)
' Output the confidence score of the OCR result
Console.WriteLine(result.Confidence)

using IronOcr;
using System;
using System.Threading.Tasks;

using System;
using System.Threading.Tasks;
#endregion

public class read_handwritten_image_async
{
    public async Task codeAsync()
    {
        // Instantiate OCR engine
        var ocr = new IronTesseract();

        // Load handwriting image
        var inputHandWriting = new OcrInput();
        inputHandWriting.LoadImage("handwritten.png");

        // Perform OCR using the async method with 'await'.
        // The compiler automatically infers this top-level code block as an 'async Task Main()' method.
        OcrHandwritingResult result = await ocr.ReadHandwritingAsync(inputHandWriting);

        // Output the recognized handwriting text
        Console.WriteLine(result.Text);
        // Output the confidence score of the OCR result
        Console.WriteLine(result.Confidence);
    

Imports IronOcr
Imports System
Imports System.Threading.Tasks

Public Class ReadHandwrittenImageAsync
    Public Async Function CodeAsync() As Task
        ' Instantiate OCR engine
        Dim ocr As New IronTesseract()

        ' Load handwriting image
        Dim inputHandWriting As New OcrInput()
        inputHandWriting.LoadImage("handwritten.png")

        ' Perform OCR using the async method with 'Await'.
        ' The compiler automatically infers this top-level code block as an 'async Task Main()' method.
        Dim result As OcrHandwritingResult = Await ocr.ReadHandwritingAsync(inputHandWriting)

        ' Output the recognized handwriting text
        Console.WriteLine(result.Text)
        ' Output the confidence score of the OCR result
        Console.WriteLine(result.Confidence)
    End Function
End Class

using IronOcr;
using IronSoftware.Drawing;

var ocrTesseract = new IronTesseract();
using var ocrInput = new OcrInput();

// Define a specific region for signature area
var signatureRegion = new CropRectangle(x: 100, y: 500, width: 300, height: 100);
ocrInput.LoadImage("form-with-signature.png", signatureRegion);

var signatureResult = ocrTesseract.ReadHandwriting(ocrInput);
Console.WriteLine($"Signature text: {signatureResult.Text}");

Imports IronOcr
Imports IronSoftware.Drawing

Dim ocrTesseract As New IronTesseract()
Using ocrInput As New OcrInput()

    ' Define a specific region for signature area
    Dim signatureRegion As New CropRectangle(x:=100, y:=500, width:=300, height:=100)
    ocrInput.LoadImage("form-with-signature.png", signatureRegion)

    Dim signatureResult = ocrTesseract.ReadHandwriting(ocrInput)
    Console.WriteLine($"Signature text: {signatureResult.Text}")

End Using

ocrTesseract.OcrProgress += (sender, e) => 
{
    Console.WriteLine($"Processing: {e.ProgressPercent}% complete");
};

ocrTesseract.OcrProgress += Sub(sender, e)
    Console.WriteLine($"Processing: {e.ProgressPercent}% complete")
End Sub