OCR tiếng Việt trong C# và .NET

// PM> Install-Package IronOcr.Languages.Vietnamese
using IronOcr;

// Initialize the OCR engine for Vietnamese language
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.Vietnamese;

// Create an OCR input from an image
using (var Input = new OcrInput(@"images\Vietnamese.png"))
{
    // Read text from the input image
    var Result = Ocr.Read(Input);

    // Store the recognized text
    string AllText = Result.Text;

    // Output the recognized text
    Console.WriteLine(AllText);
}

// PM> Install-Package IronOcr.Languages.Vietnamese
using IronOcr;

// Initialize the OCR engine for Vietnamese language
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.Vietnamese;

// Create an OCR input from an image
using (var Input = new OcrInput(@"images\Vietnamese.png"))
{
    // Read text from the input image
    var Result = Ocr.Read(Input);

    // Store the recognized text
    string AllText = Result.Text;

    // Output the recognized text
    Console.WriteLine(AllText);
}

using IronOcr;

// Read text directly from an image file
string Text = new IronTesseract().Read(@"img\Screenshot.png").Text;

// Output the recognized text
Console.WriteLine(Text);

using IronOcr;

// Read text directly from an image file
string Text = new IronTesseract().Read(@"img\Screenshot.png").Text;

// Output the recognized text
Console.WriteLine(Text);

// PM> Install-Package IronOcr.Languages.Vietnamese
using IronOcr;

// Initialize the OCR engine for Vietnamese language
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.Vietnamese;

// Create an OCR input for multiple images
using (var Input = new OcrInput())
{
    // Add images to the OCR input
    Input.AddImage("images/sample.jpeg");
    //... you can add any number of images

    // Read text from the input images
    var Result = Ocr.Read(Input);

    // Output the recognized text
    Console.WriteLine(Result.Text);
}

// PM> Install-Package IronOcr.Languages.Vietnamese
using IronOcr;

// Initialize the OCR engine for Vietnamese language
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.Vietnamese;

// Create an OCR input for multiple images
using (var Input = new OcrInput())
{
    // Add images to the OCR input
    Input.AddImage("images/sample.jpeg");
    //... you can add any number of images

    // Read text from the input images
    var Result = Ocr.Read(Input);

    // Output the recognized text
    Console.WriteLine(Result.Text);
}

using IronOcr;

// Initialize the OCR engine for Vietnamese language
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.Vietnamese;

// Create an OCR input for a PDF file
using (var Input = new OcrInput())
{
    // Add a password-protected PDF document and specify its password
    Input.AddPdf("example.pdf", "password");
    // We can also select specific PDF pages for OCR

    // Read text from the input PDF
    var Result = Ocr.Read(Input);

    // Output the recognized text
    Console.WriteLine(Result.Text);
    // Output the number of pages scanned
    Console.WriteLine($"{Result.Pages.Count} Pages");
    // 1 page for each page of the PDF
}

using IronOcr;

// Initialize the OCR engine for Vietnamese language
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.Vietnamese;

// Create an OCR input for a PDF file
using (var Input = new OcrInput())
{
    // Add a password-protected PDF document and specify its password
    Input.AddPdf("example.pdf", "password");
    // We can also select specific PDF pages for OCR

    // Read text from the input PDF
    var Result = Ocr.Read(Input);

    // Output the recognized text
    Console.WriteLine(Result.Text);
    // Output the number of pages scanned
    Console.WriteLine($"{Result.Pages.Count} Pages");
    // 1 page for each page of the PDF
}

using IronOcr;

// Initialize the OCR engine for Vietnamese language
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.Vietnamese;

// Create an OCR input for a multi-frame TIFF file
using (var Input = new OcrInput())
{
    Input.AddMultiFrameTiff("multi-frame.tiff");

    // Read text from the input TIFF
    var Result = Ocr.Read(Input);

    // Output the recognized text
    Console.WriteLine(Result.Text);
}

using IronOcr;

// Initialize the OCR engine for Vietnamese language
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.Vietnamese;

// Create an OCR input for a multi-frame TIFF file
using (var Input = new OcrInput())
{
    Input.AddMultiFrameTiff("multi-frame.tiff");

    // Read text from the input TIFF
    var Result = Ocr.Read(Input);

    // Output the recognized text
    Console.WriteLine(Result.Text);
}

using IronOcr;

// Initialize the OCR engine and configure to read barcodes
var Ocr = new IronTesseract();
Ocr.Configuration.ReadBarCodes = true;

// Create an OCR input for an image file containing barcodes
using (var Input = new OcrInput())
{
    Input.AddImage("img/Barcode.png");

    // Read text and barcodes from the input image
    var Result = Ocr.Read(Input);

    // Iterate through scanned barcodes and output their values
    foreach (var Barcode in Result.Barcodes)
    {
        Console.WriteLine(Barcode.Value);
        // Thuộc tính loại và vị trí cũng được hiển thị
    }
}

using IronOcr;

// Initialize the OCR engine and configure to read barcodes
var Ocr = new IronTesseract();
Ocr.Configuration.ReadBarCodes = true;

// Create an OCR input for an image file containing barcodes
using (var Input = new OcrInput())
{
    Input.AddImage("img/Barcode.png");

    // Read text and barcodes from the input image
    var Result = Ocr.Read(Input);

    // Iterate through scanned barcodes and output their values
    foreach (var Barcode in Result.Barcodes)
    {
        Console.WriteLine(Barcode.Value);
        // Thuộc tính loại và vị trí cũng được hiển thị
    }
}

using IronOcr;
using System.Drawing;

// Initialize the OCR engine for Vietnamese language
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.Vietnamese;

// Create an OCR input specifying a region in the image
using (var Input = new OcrInput())
{
    // Define the content area within the image to read text
    var ContentArea = new Rectangle() { X = 215, Y = 1250, Height = 280, Width = 1335 };
    // Dimensions in px

    // Add image with specified content area
    Input.Add("document.png", ContentArea);

    // Read text from the specified region of the image
    var Result = Ocr.Read(Input);

    // Output the recognized text
    Console.WriteLine(Result.Text);
}

using IronOcr;
using System.Drawing;

// Initialize the OCR engine for Vietnamese language
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.Vietnamese;

// Create an OCR input specifying a region in the image
using (var Input = new OcrInput())
{
    // Define the content area within the image to read text
    var ContentArea = new Rectangle() { X = 215, Y = 1250, Height = 280, Width = 1335 };
    // Dimensions in px

    // Add image with specified content area
    Input.Add("document.png", ContentArea);

    // Read text from the specified region of the image
    var Result = Ocr.Read(Input);

    // Output the recognized text
    Console.WriteLine(Result.Text);
}

using IronOcr;

// Initialize the OCR engine for Vietnamese language
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.Vietnamese;

// Create an OCR input from a low-quality image file
using (var Input = new OcrInput(@"img\Potter.LowQuality.tiff"))
{
    // Apply filters to improve the input image
    Input.DeNoise(); // sửa lỗi kỹ thuật số nhiễu và quét kém
    Input.Deskew(); // sửa lỗi xoay và phối cảnh

    // Read text from the improved image
    var Result = Ocr.Read(Input);

    // Output the recognized text
    Console.WriteLine(Result.Text);
}

using IronOcr;

// Initialize the OCR engine for Vietnamese language
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.Vietnamese;

// Create an OCR input from a low-quality image file
using (var Input = new OcrInput(@"img\Potter.LowQuality.tiff"))
{
    // Apply filters to improve the input image
    Input.DeNoise(); // sửa lỗi kỹ thuật số nhiễu và quét kém
    Input.Deskew(); // sửa lỗi xoay và phối cảnh

    // Read text from the improved image
    var Result = Ocr.Read(Input);

    // Output the recognized text
    Console.WriteLine(Result.Text);
}

using IronOcr;

// Initialize the OCR engine for Vietnamese language
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.Vietnamese;

// Create an OCR input and add images
using (var Input = new OcrInput())
{
    Input.Title = "Quarterly Report";
    Input.AddImage("image1.jpeg");
    Input.AddImage("image2.png");
    Input.AddImage("image3.gif");

    // Read text and save as a searchable PDF
    var Result = Ocr.Read(Input);

    // Save the output as a searchable PDF
    Result.SaveAsSearchablePdf("searchable.pdf");
}

using IronOcr;

// Initialize the OCR engine for Vietnamese language
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.Vietnamese;

// Create an OCR input and add images
using (var Input = new OcrInput())
{
    Input.Title = "Quarterly Report";
    Input.AddImage("image1.jpeg");
    Input.AddImage("image2.png");
    Input.AddImage("image3.gif");

    // Read text and save as a searchable PDF
    var Result = Ocr.Read(Input);

    // Save the output as a searchable PDF
    Result.SaveAsSearchablePdf("searchable.pdf");
}

using IronOcr;

// Initialize the OCR engine for Vietnamese language
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.Vietnamese;

// Create an OCR input for a multi-frame TIFF file
using (var Input = new OcrInput())
{
    Input.AddMultiFrameTiff("example.tiff");

    // Read text and save as a searchable PDF
    var Result = Ocr.Read(Input);
    Result.SaveAsSearchablePdf("searchable.pdf");
}

using IronOcr;

// Initialize the OCR engine for Vietnamese language
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.Vietnamese;

// Create an OCR input for a multi-frame TIFF file
using (var Input = new OcrInput())
{
    Input.AddMultiFrameTiff("example.tiff");

    // Read text and save as a searchable PDF
    var Result = Ocr.Read(Input);
    Result.SaveAsSearchablePdf("searchable.pdf");
}

using IronOcr;

// Initialize the OCR engine for Vietnamese language
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.Vietnamese;

// Create an OCR input and add images
using (var Input = new OcrInput())
{
    Input.Title = "Html Title";
    Input.AddImage("image1.jpeg");

    // Read text and save as an HOCR file
    var Result = Ocr.Read(Input);
    Result.SaveAsHocrFile("results.html");
}

using IronOcr;

// Initialize the OCR engine for Vietnamese language
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.Vietnamese;

// Create an OCR input and add images
using (var Input = new OcrInput())
{
    Input.Title = "Html Title";
    Input.AddImage("image1.jpeg");

    // Read text and save as an HOCR file
    var Result = Ocr.Read(Input);
    Result.SaveAsHocrFile("results.html");
}

using IronOcr;

// Initialize the OCR engine for Vietnamese language
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.Vietnamese;

// Create an OCR input from a low-quality image file
using (var Input = new OcrInput(@"LowQuality.jpeg"))
{
    // Apply filters to improve the input image
    Input.DeNoise(); // sửa lỗi kỹ thuật số nhiễu và quét kém
    Input.Deskew(); // sửa lỗi xoay và phối cảnh

    // Read text from the improved image
    var Result = Ocr.Read(Input);

    // Output the recognized text
    Console.WriteLine(Result.Text);
}

using IronOcr;

// Initialize the OCR engine for Vietnamese language
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.Vietnamese;

// Create an OCR input from a low-quality image file
using (var Input = new OcrInput(@"LowQuality.jpeg"))
{
    // Apply filters to improve the input image
    Input.DeNoise(); // sửa lỗi kỹ thuật số nhiễu và quét kém
    Input.Deskew(); // sửa lỗi xoay và phối cảnh

    // Read text from the improved image
    var Result = Ocr.Read(Input);

    // Output the recognized text
    Console.WriteLine(Result.Text);
}

// using IronOcr;
// PM> Install IronOcr.Languages.Arabic

// Initialize the OCR engine for Arabic language
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.Arabic;

// Create an OCR input for an image file
using (var Input = new OcrInput())
{
    Input.AddImage("img/arabic.gif");

    // Add image filters if necessary
    // Even if the input quality is low
    // IronTesseract can read what standard Tesseract might not.

    // Read text from the input image
    var Result = Ocr.Read(Input);

    // Console cannot print Arabic easily on Windows.
    // Instead, save to disk.
    Result.SaveAsTextFile("arabic.txt");
}

// using IronOcr;
// PM> Install IronOcr.Languages.Arabic

// Initialize the OCR engine for Arabic language
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.Arabic;

// Create an OCR input for an image file
using (var Input = new OcrInput())
{
    Input.AddImage("img/arabic.gif");

    // Add image filters if necessary
    // Even if the input quality is low
    // IronTesseract can read what standard Tesseract might not.

    // Read text from the input image
    var Result = Ocr.Read(Input);

    // Console cannot print Arabic easily on Windows.
    // Instead, save to disk.
    Result.SaveAsTextFile("arabic.txt");
}

// using IronOcr;
// PM> Install IronOcr.Languages.ChineseSimplified

// Initialize the OCR engine for multiple languages
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.ChineseSimplified;
Ocr.AddSecondaryLanguage(OcrLanguage.Vietnamese);

// Add any number of languages

// Create an OCR input for a multi-language PDF
using (var Input = new OcrInput())
{
    Input.Add("multi-language.pdf");

    // Read text from the input PDF
    var Result = Ocr.Read(Input);

    // Save the output to a text file
    Result.SaveAsTextFile("results.txt");
}

// using IronOcr;
// PM> Install IronOcr.Languages.ChineseSimplified

// Initialize the OCR engine for multiple languages
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.ChineseSimplified;
Ocr.AddSecondaryLanguage(OcrLanguage.Vietnamese);

// Add any number of languages

// Create an OCR input for a multi-language PDF
using (var Input = new OcrInput())
{
    Input.Add("multi-language.pdf");

    // Read text from the input PDF
    var Result = Ocr.Read(Input);

    // Save the output to a text file
    Result.SaveAsTextFile("results.txt");
}

using IronOcr;
using System.Drawing; // Thêm tham chiếu hội

// Initialize the OCR engine for Vietnamese language
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.Vietnamese;
Ocr.Configuration.EngineMode = TesseractEngineMode.TesseractAndLstm;
Ocr.Configuration.ReadBarCodes = true; //!Quan trọng

// Create an OCR input from a TIFF file
using (var Input = new OcrInput(@"images\sample.tiff"))
{
    // Read text, barcodes, and other data from the input image
    OcrResult Result = Ocr.Read(Input);

    // Explore the detailed API:
    var Pages = Result.Pages;
    var Words = Pages[0].Words;
    var Barcodes = Result.Barcodes;
    // - Trang, Khối, Paraphaphs, Dòng, Từ, Ký tự
    // - Xuất hình ảnh, tọa độ phông chữ, dữ liệu thống kê
}

using IronOcr;
using System.Drawing; // Thêm tham chiếu hội

// Initialize the OCR engine for Vietnamese language
var Ocr = new IronTesseract();
Ocr.Language = OcrLanguage.Vietnamese;
Ocr.Configuration.EngineMode = TesseractEngineMode.TesseractAndLstm;
Ocr.Configuration.ReadBarCodes = true; //!Quan trọng

// Create an OCR input from a TIFF file
using (var Input = new OcrInput(@"images\sample.tiff"))
{
    // Read text, barcodes, and other data from the input image
    OcrResult Result = Ocr.Read(Input);

    // Explore the detailed API:
    var Pages = Result.Pages;
    var Words = Pages[0].Words;
    var Barcodes = Result.Barcodes;
    // - Trang, Khối, Paraphaphs, Dòng, Từ, Ký tự
    // - Xuất hình ảnh, tọa độ phông chữ, dữ liệu thống kê
}