As of version 1.9.8, Spire.OCR for .NET offers developers a new model to extract text from images. In this article, we will demonstrate how to extract text from images in C# using the new model of Spire.OCR for .NET.

The detailed steps are as follows.

Step 1: Create a Console App (.NET Framework) in Visual Studio.

Step 2: Change the platform target of the application to x64.

In the application's Solution Explorer, right-click on the project's name and then select "Properties".

Change the platform target of the application to x64. This step must be performed since Spire.OCR only supports 64-bit platforms.

Step 3: Install Spire.OCR for .NET in your application.

Install Spire.OCR for .NET through NuGet by executing the following command in the NuGet Package Manager Console:

Install-Package Spire.OCR

Step 4: Download the new model and dependencies of Spire.OCR for .NET.

Download the new model and dependencies of Spire.OCR for .NET (Model&Lib.zip) through the following link. Then extract the package and save it to a specific directory (such as "D:\") in your computer.

https://www.e-iceblue.com/resource/ocr_net/Model&Lib.zip

Step 5: Use Spire.OCR for .NET to extract text from images in C#.

The following code example shows how to extract text from an image using C# and Spire.OCR for .NET:

using Spire.OCR;
using System.IO;

namespace NewOCRModel
{
    internal class Program
    {
        static void Main(string[] args)
        {
            // Set license key
            // Spire.OCR.License.LicenseProvider.SetLicenseKey("your-license-key");
            // Create an instance of the OcrScanner class
            OcrScanner scanner = new OcrScanner();

            // Create an instance of the ConfigureOptions class to set up the scanner configuration
            ConfigureOptions configureOptions = new ConfigureOptions();

            // Set the path to the new model
            configureOptions.ModelPath = @"D:\Model&Lib\Model";

            // Set the path to the dependency libs
            configureOptions.LibPath = @"D:\Model&Lib\Lib\X64";

            // Specify the language for text recognition (such as English, Chinese, Chinesetraditional, French, German, Japanese, or Korean)
            configureOptions.Language = "English";

            // Apply the configuration options to the scanner
            scanner.ConfigureDependencies(configureOptions);

            // Extract text from an image
            scanner.Scan("test.png");

            //Save the extracted text to a text file
            string text = scanner.Text.ToString();
            File.WriteAllText("Output.txt", text);
        }
    }
}

Apply for a Temporary License

If you'd like to remove the evaluation message from the generated documents, or to get rid of the function limitations, please request a 30-day trial license for yourself.

Spire.OCR for .NET is a professional OCR library that supports recognizing text from Images (such as JPG, PNG, GIF, BMP, and TIFF) in both .NET Framework and .NET Core applications. In this article, we will explain how to use Spire.OCR for .NET to read text from images in .NET Framework applications.

Step 1: Create a console application (.NET Framework) in Visual Studio.

Step 2: Change the platform target of the application to X64.

In the application's solution explorer, right-click on the solution name and then click "Properties".

Change the platform target of the application to X64. This step must be performed since Spire.OCR only supports 64-bit platforms.

Step 3: Add a reference to Spire.OCR for .NET DLL in the application.

We recommend installing Spire.OCR for .NET through NuGet (Note: only Spire.OCR for .NET Version 1.8.0 or above supports working with .NET Framework). The detailed steps are as follows:

• In the application's solution explorer, right-click on the solution name or "References" and select "Manage NuGet Packages".
• Click the "Browse" tab and search for Spire.OCR.
• Click "Install" to install Spire.OCR.

Step 4: Copy DLLs from the "packages" directory to the "Debug" directory in the application.

When you install Spire.OCR through NuGet, NuGet downloads the packages and puts them in your application under a directory called "packages". You need to find the "Spire.OCR" directory under the "packages" directory, then copy the DLLs under the "Spire.OCR" directory (packages\Spire.OCR.1.8.0\runtimes\win-x64\native) to the "Debug" directory of your application.

Now you have successfully included Spire.OCR in your .NET Framework application. You can refer to the following code example to read text from images using Spire.OCR.

using Spire.OCR;
using System.IO;

namespace OcrImage
{
    internal class Program
    {
        static void Main(string[] args)
        {
            //Create an instance of the OcrScanner class
            OcrScanner scanner = new OcrScanner();

            //Call the OcrScanner.Scan() method to scan text from an image
            scanner.Scan("image.png");

            //Save the scanned text to a .txt file
            string text = scanner.Text.ToString();            
            File.WriteAllText("output.txt", text);
        }
    }
}

Imports Spire.OCR
Imports System.IO

Namespace OcrImage
    Friend Class Program
        Private Shared Sub Main(ByVal args As String())
            'Create an instance of the OcrScanner class
            Dim scanner As OcrScanner = New OcrScanner()

            'Call the OcrScanner.Scan() method to scan text from an image
            scanner.Scan("image.png")

            'Save the scanned text to a .txt file
            Dim text As String = scanner.Text.ToString()
            File.WriteAllText("output.txt", text)
        End Sub
    End Class
End Namespace

Apply for a Temporary License

If you'd like to remove the evaluation message from the generated documents, or to get rid of the function limitations, please request a 30-day trial license for yourself.