C#でIronOCRを使ってスクリーンショットを読む方法</#35;

using IronOcr;
using System;
using System.Linq;

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

using var inputScreenshot = new OcrInput();
inputScreenshot.LoadImage("screenshotOCR.png");

// Perform OCR
OcrPhotoResult result = ocr.ReadScreenShot(inputScreenshot);

// Output screenshot information
Console.WriteLine(result.Text);
Console.WriteLine(result.TextRegions.First().Region.X);
Console.WriteLine(result.TextRegions.Last().Region.Width);
Console.WriteLine(result.Confidence);

Imports IronOcr
Imports System
Imports System.Linq

' Instantiate OCR engine
Private ocr = New IronTesseract()

Private inputScreenshot = New OcrInput()
inputScreenshot.LoadImage("screenshotOCR.png")

' Perform OCR
Dim result As OcrPhotoResult = ocr.ReadScreenShot(inputScreenshot)

' Output screenshot information
Console.WriteLine(result.Text)
Console.WriteLine(result.TextRegions.First().Region.X)
Console.WriteLine(result.TextRegions.Last().Region.Width)
Console.WriteLine(result.Confidence)

using IronOcr;
using System;

// Configure OCR engine with specific settings for screenshots
var ocr = new IronTesseract()
{
    // Set language for better accuracy with non-English content
    Language = OcrLanguage.English,
    // Configure for screen-resolution images
    Configuration = new TesseractConfiguration()
    {
        PageSegmentationMode = TesseractPageSegmentationMode.AutoOsd,
        // Enable whitelist for specific characters if needed
        WhiteListCharacters = null
    }
};

using var inputScreenshot = new OcrInput();
// Load screenshot with specific DPI setting for consistency
inputScreenshot.LoadImage("screenshotOCR.png", 96); // Standard screen DPI

// Apply preprocessing for better accuracy
inputScreenshot.DeNoise(); // Remove screenshot artifacts
inputScreenshot.Sharpen(); // Enhance text edges

// Perform OCR with error handling
try
{
    OcrPhotoResult result = ocr.ReadScreenShot(inputScreenshot);

    // Process results with confidence threshold
    if (result.Confidence > 0.8)
    {
        Console.WriteLine($"High confidence text extraction: {result.Text}");
    }
    else
    {
        Console.WriteLine("Low confidence - consider image preprocessing");
    }
}
catch (Exception ex)
{
    Console.WriteLine($"OCR Error: {ex.Message}");
}

Imports IronOcr
Imports System

' Configure OCR engine with specific settings for screenshots
Dim ocr As New IronTesseract() With {
    ' Set language for better accuracy with non-English content
    .Language = OcrLanguage.English,
    ' Configure for screen-resolution images
    .Configuration = New TesseractConfiguration() With {
        .PageSegmentationMode = TesseractPageSegmentationMode.AutoOsd,
        ' Enable whitelist for specific characters if needed
        .WhiteListCharacters = Nothing
    }
}

Using inputScreenshot As New OcrInput()
    ' Load screenshot with specific DPI setting for consistency
    inputScreenshot.LoadImage("screenshotOCR.png", 96) ' Standard screen DPI

    ' Apply preprocessing for better accuracy
    inputScreenshot.DeNoise() ' Remove screenshot artifacts
    inputScreenshot.Sharpen() ' Enhance text edges

    ' Perform OCR with error handling
    Try
        Dim result As OcrPhotoResult = ocr.ReadScreenShot(inputScreenshot)

        ' Process results with confidence threshold
        If result.Confidence > 0.8 Then
            Console.WriteLine($"High confidence text extraction: {result.Text}")
        Else
            Console.WriteLine("Low confidence - consider image preprocessing")
        End If
    Catch ex As Exception
        Console.WriteLine($"OCR Error: {ex.Message}")
    End Try
End Using

using IronOcr;
using System;
using System.Linq;

var ocr = new IronTesseract();
using var input = new OcrInput();
input.LoadImage("screenshot.png");

OcrPhotoResult result = ocr.ReadScreenShot(input);

// Process each text region individually
foreach (var region in result.TextRegions)
{
    Console.WriteLine($"Text: {region.Text}");
    Console.WriteLine($"Location: X={region.Region.X}, Y={region.Region.Y}");
    Console.WriteLine($"Size: {region.Region.Width}x{region.Region.Height}");
    Console.WriteLine($"Confidence: {region.Confidence:P2}");
    Console.WriteLine("---");
}

// Find specific UI elements by text content
var buttonRegion = result.TextRegions
    .FirstOrDefault(r => r.Text.Contains("Submit", StringComparison.OrdinalIgnoreCase));

if (buttonRegion != null)
{
    Console.WriteLine($"Found button at: {buttonRegion.Region.X}, {buttonRegion.Region.Y}");
}

Imports IronOcr
Imports System
Imports System.Linq

Dim ocr As New IronTesseract()
Using input As New OcrInput()
    input.LoadImage("screenshot.png")

    Dim result As OcrPhotoResult = ocr.ReadScreenShot(input)

    ' Process each text region individually
    For Each region In result.TextRegions
        Console.WriteLine($"Text: {region.Text}")
        Console.WriteLine($"Location: X={region.Region.X}, Y={region.Region.Y}")
        Console.WriteLine($"Size: {region.Region.Width}x{region.Region.Height}")
        Console.WriteLine($"Confidence: {region.Confidence:P2}")
        Console.WriteLine("---")
    Next

    ' Find specific UI elements by text content
    Dim buttonRegion = result.TextRegions _
        .FirstOrDefault(Function(r) r.Text.Contains("Submit", StringComparison.OrdinalIgnoreCase))

    If buttonRegion IsNot Nothing Then
        Console.WriteLine($"Found button at: {buttonRegion.Region.X}, {buttonRegion.Region.Y}")
    End If
End Using