最佳 OCR API（更新列表比较）

1.2. Licensing and Pricing

OCR.Space offers a range of pricing options to suit different business needs, including a free plan that allows for up to 25,000 OCR requests per month, and paid plans that offer additional features such as faster processing times, higher accuracy, and dedicated support. The API is also easy to integrate with different programming languages and platforms, including Python, Java, and .NET.

2.1. Features

The Rossum.AI API is designed to automate and streamline document processing, making it ideal for businesses and organizations that handle large volumes of documents on a daily basis. The API provides highly accurate OCR capabilities that can read text from a wide range of documents, including invoices, receipts, purchase orders, and other structured and unstructured documents.

One of the key features of Rossum.AI is its ability to handle complex document layouts and varying fonts with ease. Its advanced algorithms can detect tables, columns, and other structural elements in a document, making it easier to extract data accurately. Additionally, the Rossum.AI OCR engine can read handwritten text, which is a significant advantage over other OCR APIs that do not offer this feature.

2.2. Summary

Rossum.AI is an advanced OCR API that provides highly accurate document processing and data extraction capabilities. Its ability to handle complex document layouts and learn from user feedback makes it an excellent choice for businesses and organizations that require reliable, automated document processing.

3.1. Features

One of the key advantages of Amazon Textract is its support for various document types, including scanned documents, PDFs, and images. It can extract information from forms and tables, and even identify key-value pairs from structured documents. Moreover, Textract is designed to scale horizontally, which means that it can handle large volumes of documents with ease.

3.2. Licensing and Pricing

In terms of licensing and pricing, Amazon Textract is available on a pay-per-use basis. AWS offers a free tier that includes 1,000 pages of text extraction per month. Beyond that, pricing is based on the number of pages processed per month. The pricing is tiered, which means that the more pages you process, the lower the cost per page. There are also additional charges for other services such as data storage, data transfer, and API requests.

4.1. Features

IronOCR offers a range of advanced features, including support for barcode scanning, image pre-processing, data entry, digitizing printed data, manual data entry, data processing, and image resizing. It also includes features for handling different font styles, layouts, and image quality issues, making it a versatile and reliable OCR solution. Additionally, IronOCR facilitates automated data processing, eliminating the need for manual data processing.

4.2. Licensing and Pricing

IronOCR is available under a commercial license, which requires a one-time payment. The pricing for the commercial license varies depending on the number of developers who will be using the API and the type of deployment (cloud or on-premise). IronOCR also offers a free trial version that allows developers to test the API's features and functionality before making a purchase.

4.3. Code Example

using IronOCR;

// Initialize IronTesseract for OCR processing
var Result = new IronTesseract().Read(@"\Screenshot.png");

// Output the text extracted from the image
Console.WriteLine(Result.Text);

using IronOCR;

// Initialize IronTesseract for OCR processing
var Result = new IronTesseract().Read(@"\Screenshot.png");

// Output the text extracted from the image
Console.WriteLine(Result.Text);

Imports IronOCR

' Initialize IronTesseract for OCR processing
Private Result = (New IronTesseract()).Read("\Screenshot.png")

' Output the text extracted from the image
Console.WriteLine(Result.Text)

> IronOCR Simple Example: In this example we will test the accuracy of our C# OCR library to read text from a PNG Image.
>
> This is a very basic test, but things will get more complicated as the tutorial continues. The quick brown fox jumps over the lazy dog