C#で免許証をOCRする方法

Functions of IronOCR

IronOCR offers several features, including:

1. Text recognition from images and scanned documents
2. Support for various image formats such as JPEG, PNG, BMP, and more
3. Multi-page document support
4. Multiple OCR engine options, including Tesseract and GOCR
5. Language detection and support for over 120 languages
6. Automatic image preprocessing for enhanced OCR accuracy
7. Easy integration with .NET applications

Install IronOCR Library

Installing the IronOCR library is a straightforward process. Here are the steps:

1. Right-click on your project in the Solution Explorer and select "Manage NuGet Packages".
2. Search for IronOCR: In the "Browse" tab of the "Manage NuGet Packages" window, search for "IronOCR".
3. Install the package: Click on the "Install" button next to the IronOCR package to install it.

That's it! You have now installed the IronOCR library and can begin using it in your project.

Extract Data from Driver's License

Using IronOCR for data extraction from customers on a driver's license is simple. All you need to do is load the image into the IronOCR Computer Vision engine, and it will automatically recognize the text and extract it for you. IronOCR can extract essential details of customers such as name, address, date of birth, and license number, making it a valuable tool for many industries.

Here's a simple example of how to use IronOCR to extract text from an image of a driver's license:

using IronOcr; // Importing the IronOcr namespace to utilize its OCR capabilities.
using System; // Required for using the Console class.

public class OcrExample
{
    public static void Main()
    {
        // Create an instance of IronTesseract, the OCR engine.
        var ocrTesseract = new IronTesseract();

        // Load the image file using the OcrInput class.
        using (var ocrInput = new OcrInput(@"C:\Users\Administrator\Desktop\License.jpg"))
        {
            // Execute OCR on the input image and capture the results.
            var ocrResult = ocrTesseract.Read(ocrInput);

            // Output the recognized text to the console.
            Console.WriteLine(ocrResult.Text);
        }
    }
}

using IronOcr; // Importing the IronOcr namespace to utilize its OCR capabilities.
using System; // Required for using the Console class.

public class OcrExample
{
    public static void Main()
    {
        // Create an instance of IronTesseract, the OCR engine.
        var ocrTesseract = new IronTesseract();

        // Load the image file using the OcrInput class.
        using (var ocrInput = new OcrInput(@"C:\Users\Administrator\Desktop\License.jpg"))
        {
            // Execute OCR on the input image and capture the results.
            var ocrResult = ocrTesseract.Read(ocrInput);

            // Output the recognized text to the console.
            Console.WriteLine(ocrResult.Text);
        }
    }
}

Imports IronOcr ' Importing the IronOcr namespace to utilize its OCR capabilities.
Imports System ' Required for using the Console class.

Public Class OcrExample
	Public Shared Sub Main()
		' Create an instance of IronTesseract, the OCR engine.
		Dim ocrTesseract = New IronTesseract()

		' Load the image file using the OcrInput class.
		Using ocrInput As New OcrInput("C:\Users\Administrator\Desktop\License.jpg")
			' Execute OCR on the input image and capture the results.
			Dim ocrResult = ocrTesseract.Read(ocrInput)

			' Output the recognized text to the console.
			Console.WriteLine(ocrResult.Text)
		End Using
	End Sub
End Class

Driving License

Explanation of the Program

1. Import the required namespaces: IronOcr for OCR functionality and System for console operations.
2. Create a new instance of IronTesseract: This is the OCR engine responsible for recognizing text.
3. Open the driving license image using the OcrInput class: Load the JPEG image of the driver's license for processing.
4. Use the Read method: The method of IronTesseract performs OCR on the input image and returns the recognized text.
5. Print the extracted text to the console: Display the results of OCR processing.

The output of IronOCR is impressive, and the accuracy is exceptional. IronOCR uses advanced algorithms to recognize text, and it can handle data in a wide range of fonts, sizes, and styles.

Output text from IronOCR library

Results of performing OCR on the UK Drivers License

DRIVING LICENCE

1. WHEEL
2. MRS ANGELA DIANNE
3. 11.11.1953 UNITED KINGDOM
4a. 04.09.2070 4b. 19.12.2020 4c. DVLA
1. WHEAL561113AD9US 76

TL

8. 7SEAROAD,
WINCHELSEA, AN34 3NA

V 9. AM/A/B1/B/C 1/D1/BE/C1E/D1E!i'%/)/n/p/q

1. Car Rental Services

Car rental companies can use OCR technology to automate the process of verifying customers' driver licenses. This can help speed up the registration process, reduce wait times, and improve customer satisfaction.

2. Insurance Companies

Insurance providers can use OCR to extract driving license information for assessing policyholders' risk profiles or verifying identity during the claims process. This can help streamline workflows and ensure accurate data is used for decision-making.

3. Traffic Enforcement Agencies

Law enforcement agencies can use OCR technology to quickly and accurately process driving licenses during traffic stops or checkpoints. This can reduce the time officers spend on manual data entry and allow them to focus on more critical tasks.

4. Identity Verification Services

Companies that provide identity verification services can integrate driver's license OCR to enhance their offerings. By extracting data from driver licenses, these companies can provide additional layers of authentication for their clients, such as banks, financial institutions, or online platforms.

By integrating OCR technology into their systems, businesses and government agencies can streamline their workflows, reduce errors, and improve overall efficiency. The use cases listed above demonstrate the potential benefits of automating driving license data extraction across various industries and sectors.