IronOCR対 AWS Textract: スタートアップ向け OCR ソリューション

// IronOCR - Process local file with image corrections
using IronOcr;

var ocr = new IronTesseract();
using var input = new OcrInput();
input.LoadImage("receipt.jpg");
input.Deskew();  // Straighten image
input.DeNoise(); // Remove background noise
input.EnhanceResolution(225); // Optimize DPI

var result = ocr.Read(input);
Console.WriteLine($"Extracted: {result.Text}");
Console.WriteLine($"Confidence: {result.Confidence}%");

// Export results in various formats
result.SaveAsSearchablePdf("searchable_receipt.pdf");
result.SaveAsHocrFile("receipt.hocr"); // HTML with layout

Imports IronOcr

Dim ocr As New IronTesseract()
Using input As New OcrInput()
    input.LoadImage("receipt.jpg")
    input.Deskew() ' Straighten image
    input.DeNoise() ' Remove background noise
    input.EnhanceResolution(225) ' Optimize DPI

    Dim result = ocr.Read(input)
    Console.WriteLine($"Extracted: {result.Text}")
    Console.WriteLine($"Confidence: {result.Confidence}%")

    ' Export results in various formats
    result.SaveAsSearchablePdf("searchable_receipt.pdf")
    result.SaveAsHocrFile("receipt.hocr") ' HTML with layout
End Using

// IronOCR - Advanced region-specific OCR with coordinates
using IronOcr;

var ocr = new IronTesseract();
using var input = new OcrInput();

// Load and preprocess image
input.LoadImage("form.png");
input.DeNoise();
input.EnhanceResolution(300);

// Define specific regions to OCR
var nameRegion = new Rectangle(100, 50, 200, 30);
var addressRegion = new Rectangle(100, 100, 300, 60);

input.AddImage("form.png", nameRegion);
input.AddImage("form.png", addressRegion);

// Read with region tracking
var result = ocr.Read(input);

// Access structured data with coordinates
foreach (var page in result.Pages)
{
    foreach (var line in page.Lines)
    {
        Console.WriteLine($"Text: {line.Text}");
        Console.WriteLine($"Location: X={line.X}, Y={line.Y}");
        Console.WriteLine($"Size: W={line.Width}, H={line.Height}");
    }
}

Imports IronOcr

Dim ocr As New IronTesseract()
Using input As New OcrInput()

    ' Load and preprocess image
    input.LoadImage("form.png")
    input.DeNoise()
    input.EnhanceResolution(300)

    ' Define specific regions to OCR
    Dim nameRegion As New Rectangle(100, 50, 200, 30)
    Dim addressRegion As New Rectangle(100, 100, 300, 60)

    input.AddImage("form.png", nameRegion)
    input.AddImage("form.png", addressRegion)

    ' Read with region tracking
    Dim result = ocr.Read(input)

    ' Access structured data with coordinates
    For Each page In result.Pages
        For Each line In page.Lines
            Console.WriteLine($"Text: {line.Text}")
            Console.WriteLine($"Location: X={line.X}, Y={line.Y}")
            Console.WriteLine($"Size: W={line.Width}, H={line.Height}")
        Next
    Next
End Using

// IronOCR - Process specific document types with optimized settings
using IronOcr;

// Reading a passport with specialized method
var passportOcr = new IronTesseract();
var passportResult = passportOcr.ReadPassport("passport.jpg");

// Access structured passport data
Console.WriteLine($"Name: {passportResult.GivenNames} {passportResult.Surname}");
Console.WriteLine($"Passport #: {passportResult.PassportNumber}");
Console.WriteLine($"DOB: {passportResult.DateOfBirth}");

// Reading license plate with optimized settings
var licensePlateOcr = new IronTesseract();
var plateResult = licensePlateOcr.ReadLicensePlate("car.jpg");
Console.WriteLine($"Plate Number: {plateResult.Text}");

// MICR check reading for banking
var checkOcr = new IronTesseract();
var checkResult = checkOcr.ReadMicr("check.jpg");
Console.WriteLine($"Routing: {checkResult.RoutingNumber}");

Imports IronOcr

' IronOCR - Process specific document types with optimized settings

' Reading a passport with specialized method
Dim passportOcr As New IronTesseract()
Dim passportResult = passportOcr.ReadPassport("passport.jpg")

' Access structured passport data
Console.WriteLine($"Name: {passportResult.GivenNames} {passportResult.Surname}")
Console.WriteLine($"Passport #: {passportResult.PassportNumber}")
Console.WriteLine($"DOB: {passportResult.DateOfBirth}")

' Reading license plate with optimized settings
Dim licensePlateOcr As New IronTesseract()
Dim plateResult = licensePlateOcr.ReadLicensePlate("car.jpg")
Console.WriteLine($"Plate Number: {plateResult.Text}")

' MICR check reading for banking
Dim checkOcr As New IronTesseract()
Dim checkResult = checkOcr.ReadMicr("check.jpg")
Console.WriteLine($"Routing: {checkResult.RoutingNumber}")