发票 OCR 机器学习（逐步教程）

// Define the path to the invoice image
string invoicePath = @"D:\Invoices\SampleInvoice.png";

// Create an instance of IronTesseract for OCR processing
IronTesseract ocr = new IronTesseract();

// Use 'using' to ensure proper disposal of OcrInput resources
using (OcrInput input = new OcrInput())
{
    // Add the invoice image to the OCR input
    input.AddImage(invoicePath);

    // Perform OCR on the input image and store result
    OcrResult result = ocr.Read(input);

    // Output the extracted text from the image to the console
    Console.WriteLine(result.Text);
}

' Define the path to the invoice image
Dim invoicePath As String = "D:\Invoices\SampleInvoice.png"

' Create an instance of IronTesseract for OCR processing
Dim ocr As New IronTesseract()

' Use 'using' to ensure proper disposal of OcrInput resources
Using input As New OcrInput()
	' Add the invoice image to the OCR input
	input.AddImage(invoicePath)

	' Perform OCR on the input image and store result
	Dim result As OcrResult = ocr.Read(input)

	' Output the extracted text from the image to the console
	Console.WriteLine(result.Text)
End Using

// Get all PNG files from the specified directory
string[] fileArray = Directory.GetFiles(@"D:\Invoices\", "*.png");

// Create an instance of IronTesseract for OCR processing
IronTesseract ocr = new IronTesseract();

// Use 'using' to ensure proper disposal of OcrInput resources
using (OcrInput input = new OcrInput())
{
    // Loop through each file and add it to the OCR input
    foreach (string file in fileArray)
    {
        input.AddImage(file);
    }

    // Perform OCR on all the added images and store the result
    OcrResult result = ocr.Read(input);

    // Output the extracted text from all images to the console
    Console.WriteLine(result.Text);
}

' Get all PNG files from the specified directory
Dim fileArray() As String = Directory.GetFiles("D:\Invoices\", "*.png")

' Create an instance of IronTesseract for OCR processing
Dim ocr As New IronTesseract()

' Use 'using' to ensure proper disposal of OcrInput resources
Using input As New OcrInput()
	' Loop through each file and add it to the OCR input
	For Each file As String In fileArray
		input.AddImage(file)
	Next file

	' Perform OCR on all the added images and store the result
	Dim result As OcrResult = ocr.Read(input)

	' Output the extracted text from all images to the console
	Console.WriteLine(result.Text)
End Using

// Get all PNG files from the specified directory
string[] fileArray = Directory.GetFiles(@"D:\Invoices\", "*.png");

// Create an instance of IronTesseract for OCR processing
IronTesseract ocr = new IronTesseract();

// Use 'using' to ensure proper disposal of OcrInput resources
using (OcrInput input = new OcrInput())
{
    // Loop through each file and add it to the OCR input
    foreach (string file in fileArray)
    {
        input.AddImage(file);
    }

    // Perform OCR on all the added images and store the result
    OcrResult result = ocr.Read(input);

    // Save the result as a searchable PDF
    result.SaveAsSearchablePdf(@"D:\Invoices\Searchable.pdf");
}

' Get all PNG files from the specified directory
Dim fileArray() As String = Directory.GetFiles("D:\Invoices\", "*.png")

' Create an instance of IronTesseract for OCR processing
Dim ocr As New IronTesseract()

' Use 'using' to ensure proper disposal of OcrInput resources
Using input As New OcrInput()
	' Loop through each file and add it to the OCR input
	For Each file As String In fileArray
		input.AddImage(file)
	Next file

	' Perform OCR on all the added images and store the result
	Dim result As OcrResult = ocr.Read(input)

	' Save the result as a searchable PDF
	result.SaveAsSearchablePdf("D:\Invoices\Searchable.pdf")
End Using

// Get all PDF files from the specified directory
string[] fileArray = Directory.GetFiles(@"D:\Invoices\", "*.pdf");

// Create an instance of IronTesseract for OCR processing
IronTesseract ocr = new IronTesseract();

// Use 'using' to ensure proper disposal of OcrInput resources
using (OcrInput input = new OcrInput())
{
    // Loop through each file and add it to the OCR input
    foreach (string file in fileArray)
    {
        input.AddPdf(file);
    }

    // Perform OCR on all the added PDFs and store the result
    OcrResult result = ocr.Read(input);

    // Output the extracted text from all PDFs to the console
    Console.WriteLine(result.Text);
}

' Get all PDF files from the specified directory
Dim fileArray() As String = Directory.GetFiles("D:\Invoices\", "*.pdf")

' Create an instance of IronTesseract for OCR processing
Dim ocr As New IronTesseract()

' Use 'using' to ensure proper disposal of OcrInput resources
Using input As New OcrInput()
	' Loop through each file and add it to the OCR input
	For Each file As String In fileArray
		input.AddPdf(file)
	Next file

	' Perform OCR on all the added PDFs and store the result
	Dim result As OcrResult = ocr.Read(input)

	' Output the extracted text from all PDFs to the console
	Console.WriteLine(result.Text)
End Using