Azure OCR 与 Google OCR（OCR 功能比较）

using Microsoft.Azure.CognitiveServices.Vision.ComputerVision;
using Microsoft.Azure.CognitiveServices.Vision.ComputerVision.Models;
using System;
using System.Threading.Tasks;

class Program
{
    static async Task Main(string[] args)
    {
        // Create an instance of the ComputerVisionClient
        ComputerVisionClient client = new ComputerVisionClient(new ApiKeyServiceClientCredentials("YOUR_API_KEY"))
        {
            Endpoint = "https://YOUR_REGION.api.cognitive.microsoft.com/"
        };

        // Specify the image URL
        string imageUrl = "https://example.com/image.jpg";

        // Perform OCR on the image
        OcrResult result = await client.RecognizePrintedTextAsync(true, imageUrl);

        // Display the extracted text
        foreach (var region in result.Regions)
        {
            foreach (var line in region.Lines)
            {
                foreach (var word in line.Words)
                {
                    Console.Write(word.Text + " ");
                }
                Console.WriteLine();
            }
        }
    }
}

Imports Microsoft.Azure.CognitiveServices.Vision.ComputerVision
Imports Microsoft.Azure.CognitiveServices.Vision.ComputerVision.Models
Imports System
Imports System.Threading.Tasks

Friend Class Program
	Shared Async Function Main(ByVal args() As String) As Task
		' Create an instance of the ComputerVisionClient
		Dim client As New ComputerVisionClient(New ApiKeyServiceClientCredentials("YOUR_API_KEY")) With {.Endpoint = "https://YOUR_REGION.api.cognitive.microsoft.com/"}

		' Specify the image URL
		Dim imageUrl As String = "https://example.com/image.jpg"

		' Perform OCR on the image
		Dim result As OcrResult = Await client.RecognizePrintedTextAsync(True, imageUrl)

		' Display the extracted text
		For Each region In result.Regions
			For Each line In region.Lines
				For Each word In line.Words
					Console.Write(word.Text & " ")
				Next word
				Console.WriteLine()
			Next line
		Next region
	End Function
End Class

using System;
using Google.Cloud.Vision.V1;

class Program
{
    static void Main(string[] args)
    {
        // Configure the ImageAnnotator client with credentials
        var clientBuilder = new ImageAnnotatorClientBuilder { CredentialsPath = "path-to-credentials.json" };
        var client = clientBuilder.Build();

        // Load the image from file
        var image = Image.FromFile("path-to-your-image.jpg");

        // Perform text detection on the image
        var response = client.DetectText(image);

        // Display the detected text
        foreach (var annotation in response)
        {
            Console.WriteLine(annotation.Description);
        }
    }
}

Imports System
Imports Google.Cloud.Vision.V1

Friend Class Program
	Shared Sub Main(ByVal args() As String)
		' Configure the ImageAnnotator client with credentials
		Dim clientBuilder = New ImageAnnotatorClientBuilder With {.CredentialsPath = "path-to-credentials.json"}
		Dim client = clientBuilder.Build()

		' Load the image from file
		Dim image As System.Drawing.Image = System.Drawing.Image.FromFile("path-to-your-image.jpg")

		' Perform text detection on the image
		Dim response = client.DetectText(image)

		' Display the detected text
		For Each annotation In response
			Console.WriteLine(annotation.Description)
		Next annotation
	End Sub
End Class

using IronOcr;
using System;

class Program
{
    static void Main(string[] args)
    {
        // Specify the path to the image file
        string imagePath = "path-to-your-image.jpg";

        // Instantiate the IronTesseract OCR engine
        var ocr = new IronTesseract
        {
            // Set the language for text recognition
            Language = OcrLanguage.English
        };

        // Perform text recognition on the image
        var result = ocr.Read(imagePath);

        // Display the extracted text
        Console.WriteLine("Extracted Text:");
        Console.WriteLine(result.Text);
    }
}

Imports IronOcr
Imports System

Friend Class Program
	Shared Sub Main(ByVal args() As String)
		' Specify the path to the image file
		Dim imagePath As String = "path-to-your-image.jpg"

		' Instantiate the IronTesseract OCR engine
		Dim ocr = New IronTesseract With {.Language = OcrLanguage.English}

		' Perform text recognition on the image
		Dim result = ocr.Read(imagePath)

		' Display the extracted text
		Console.WriteLine("Extracted Text:")
		Console.WriteLine(result.Text)
	End Sub
End Class