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This article mainly explains ".NET Core how to use C# to scan and read the text in the picture". The content in the article is simple and clear, and it is easy to learn and understand. Please follow the editor's train of thought to study and learn ".NET Core how to use C# to scan and read the text in the picture".

Program test environment:

Visual Studio version requires no less than 2017

Image scanning tool: Spire.OCR for .NET

Image format: png (the image format here supports JPG, PNG, GIF, BMP, TIFF, etc.)

Scanned picture text: Chinese (can also support Chinese, English, Japanese, Korean, German, French, etc.)

.Net Core 2.1

Detailed steps 1. Create a .net Core console application.

two。 Add dependencies through NuGet

(1) in solution Explorer, right-click on "dependencies" and select "manage NuGet packages".

(2) in the pop-up interface, select "Browse"-enter Spire.OCR in the search box, and click "install"

Select "OK" and "I accept" in the two windows that pop up in turn

(3) after completion, you can view the dependencies that have been added

3. Copy dll

Case 1: if it is .net core 3.0 or later, copy the 6 dll files shown in the figure from the bin\ Debug\ netcoreapp3.0\ runtimes\ win-x64\ native folder to the program running path bin\ Debug\ netcoreapp3.0

Case 2: if it is below. Net core 3.0 (such as the test environment in this text), you need to download the Spire.OCR package, extract it, and copy the 6 dll in the file path Spire.OCR\ Spire.OCR_Dependency\ x64 to the program running path F:\ VS2017project\ ReadTextFromImg_OCR\ ReadTextFromImg_OCR\ bin\ Debug\ netcoreapp2.1.

4. After completing the above operations, you can refer to the following code to read the text content on the picture.

Using Spire.OCR;using System.IO;namespace ReadTextFromImg_OCR {class Program {static void Main (string [] args) {OcrScanner scanner = new OcrScanner (); scanner.Scan ("image.png"); File.WriteAllText ("output.txt", scanner.Text.ToString ());}

Test picture:

Text reading result:

★★★ Note: currently, the OCR control only supports 64-bit systems!

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