Optical Character Recognition (OCR) C++ API

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

Directory	Description
Aspose.OCR-for-C	A collection of C++ examples that help you learn and explore the API features.
Data	Sample files used in the Examples.

Image OCR API Features

• Recognize characters from images.
• Calculate the skew angle of images.
• Calculate the bounding boxes of lines or paragraphs.
• Currently, it supports 20 European languages and Chinese.
• Auto-align image and autodetect text areas.
• Get a single line and recognize it.
• Get possible choices for each recognized character.
• Pass URI and recognize the image from it.
• Recognize multiple images in a folder, zip archive or from the list.
• Get result in JSON format.
• Save results in text, DOCX or PDF formats.
• Image preprocessing.

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 with Aspose.OCR for C++

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.

Perform OCR on PNG Image

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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