// Import necessary AWS Textract and other AWS SDK packages
using Amazon.Textract;
using Amazon.Textract.Model;
using Amazon;

public async Task DetectTextFromDocumentAsync(string bucketName, string documentName)
{
    // Create an Amazon Textract client
    var textractClient = new AmazonTextractClient(RegionEndpoint.USEast1);

    // Prepare the request with the document location in S3
    var request = new DetectDocumentTextRequest
    {
        Document = new Document
        {
            S3Object = new S3Object
            {
                Bucket = bucketName,
                Name = documentName
            }
        }
    };

    // Send request to Textract and await response
    var response = await textractClient.DetectDocumentTextAsync(request);

    // Iterate through the detected blocks of text and print them
    foreach (var block in response.Blocks)
    {
        if (block.BlockType == BlockType.LINE)
        {
            Console.WriteLine($"Detected text: {block.Text}");
        }
    }
}

// Import necessary AWS Textract and other AWS SDK packages
using Amazon.Textract;
using Amazon.Textract.Model;
using Amazon;

public async Task DetectTextFromDocumentAsync(string bucketName, string documentName)
{
    // Create an Amazon Textract client
    var textractClient = new AmazonTextractClient(RegionEndpoint.USEast1);

    // Prepare the request with the document location in S3
    var request = new DetectDocumentTextRequest
    {
        Document = new Document
        {
            S3Object = new S3Object
            {
                Bucket = bucketName,
                Name = documentName
            }
        }
    };

    // Send request to Textract and await response
    var response = await textractClient.DetectDocumentTextAsync(request);

    // Iterate through the detected blocks of text and print them
    foreach (var block in response.Blocks)
    {
        if (block.BlockType == BlockType.LINE)
        {
            Console.WriteLine($"Detected text: {block.Text}");
        }
    }
}

// Import necessary Azure Cognitive Services packages
using Microsoft.Azure.CognitiveServices.Vision.ComputerVision;
using Microsoft.Azure.CognitiveServices.Vision.ComputerVision.Models;
using System.IO;
using System.Threading.Tasks;

public async Task RecognizeTextInImageAsync(Stream imageStream, string endpoint, string apiKey)
{
    // Create a Computer Vision client
    var client = new ComputerVisionClient(new ApiKeyServiceClientCredentials(apiKey))
    {
        Endpoint = endpoint
    };

    // Call the API with the image stream and read printed text
    var ocrResult = await client.RecognizePrintedTextInStreamAsync(true, imageStream);

    // Iterate over the OCR result regions, lines, and words, printing them
    foreach (var region in ocrResult.Regions)
    {
        foreach (var line in region.Lines)
        {
            foreach (var word in line.Words)
            {
                Console.WriteLine(word.Text);
            }
        }
    }
}

// Import necessary Azure Cognitive Services packages
using Microsoft.Azure.CognitiveServices.Vision.ComputerVision;
using Microsoft.Azure.CognitiveServices.Vision.ComputerVision.Models;
using System.IO;
using System.Threading.Tasks;

public async Task RecognizeTextInImageAsync(Stream imageStream, string endpoint, string apiKey)
{
    // Create a Computer Vision client
    var client = new ComputerVisionClient(new ApiKeyServiceClientCredentials(apiKey))
    {
        Endpoint = endpoint
    };

    // Call the API with the image stream and read printed text
    var ocrResult = await client.RecognizePrintedTextInStreamAsync(true, imageStream);

    // Iterate over the OCR result regions, lines, and words, printing them
    foreach (var region in ocrResult.Regions)
    {
        foreach (var line in region.Lines)
        {
            foreach (var word in line.Words)
            {
                Console.WriteLine(word.Text);
            }
        }
    }
}

// Import IronOcr namespace
using IronOcr;

public class OCRDemo
{
    public void PerformOCR(string imagePath)
    {
        // Create a new instance of IronTesseract
        var ocr = new IronTesseract();

        // Create a new IronOCR image input from the specified image filepath
        using var input = new OcrInput(imagePath);

        // Setting the OCR language (for example, English)
        ocr.Language = OcrLanguage.English;

        // Reads the text from the provided OcrImageInput object and returns an OcrResult object containing the extracted text
        OcrResult result = ocr.Read(input);

        // Writing all of the text to a new text file and saving it
        File.WriteAllText("result.txt", result.Text);
    }
}

// Import IronOcr namespace
using IronOcr;

public class OCRDemo
{
    public void PerformOCR(string imagePath)
    {
        // Create a new instance of IronTesseract
        var ocr = new IronTesseract();

        // Create a new IronOCR image input from the specified image filepath
        using var input = new OcrInput(imagePath);

        // Setting the OCR language (for example, English)
        ocr.Language = OcrLanguage.English;

        // Reads the text from the provided OcrImageInput object and returns an OcrResult object containing the extracted text
        OcrResult result = ocr.Read(input);

        // Writing all of the text to a new text file and saving it
        File.WriteAllText("result.txt", result.Text);
    }
}