Optical Character Recognition (OCR) C++ API

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Aspose.OCR for C++ is a standalone OCR API that enhances your C++ apps to perform the OCR operation on JPEG, PNG, & BMP images for extraction of English content.

Image OCR API Features

• Recognize characters from images.
• Calculate the skew angle of images.
• Currently, it supports the English language.
• Auto-align image and autodetect text areas.
• Get a single line and recognize it.

Read Image Formats for OCR

Raster Formats: JPEG, BMP ( 32bit and 16bit images are not supported), PNG

Supported Charset for Recognition

EN

Pre-requisites

Aspose OCR library requires onnxruntime.dll in the system path.

Get Started

Are you ready to give Aspose.OCR for C++ a try? Simply execute Install-Package Aspose.OCR.Cpp from Package Manager Console in Visual Studio to fetch the NuGet package. If you already have Aspose.OCR for C++ and want to upgrade the version, please execute Update-Package Aspose.OCR.Cpp to get the latest version.

Execute the following code snippet to see how Aspose.OCR API performs with your own samples or please visit the GitHub Repository for other common usage scenarios.

Perform OCR on PNG Image via C++ Code

// For complete examples and data files, please go to https://github.com/aspose-ocr/Aspose.OCR-for-C
std::string image_path = "../Data/Source/sample.png";
const wchar_t* result = aspose::ocr::recognize_page(image_path.c_str());
std::wcout << result << L'\n';

Evaluation Version Limitation

The evaluation version of Aspose.OCR for C++ limits the number of characters extracted from an image to 300.

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