Aspose.OCR for C++ 22.9 Release Notes (September 2022)

This article contains a summary of recent changes, enhancements and bug fixes in Aspose.OCR for C++ 22.9 (September 2022) release.

GPU-accelerated version of Aspose.OCR for C++: 21.7.0

What was changed

Key	Summary	Category
OCRCPP-349	Added a recognition setting that improves the recognition of small fonts and detection of dense lines.	New feature
OCRCPP-355	Extracting text from receipts.	New feature

Public API changes and backwards compatibility

This section lists all public API changes introduced in Aspose.OCR for C++ 22.9 that may affect the code of existing applications.

Added public APIs:

The following public APIs have been introduced in this release:

Receipt recognition.

Added a method asposeocr_recognize_receipt that is specifically tailored for extracting text from printed receipts.

Recognition of small fonts

Added the small_text image recognition setting. When enabled (set to true), it activates a special upscaling algorithm that greatly improves small font recognition and detection of dense lines.

Updated public APIs:

No changes.

Removed public APIs:

No changes.

Usage examples

The examples below illustrates the changes introduced in this release:

Receipt recognition.

void read_receipt()
{
	const std::string filePath = current_dir + "/source.png";
	// Set Chinese recognition language
	RecognitionSettings recognitionSettings;
	recognitionSettings.language_alphabet = language::chi;
	// Extract text from receipt
	const size_t len = 4096;
	wchar_t buffer[len] = { 0 };
	size_t result = asposeocr_recognize_receipt(filePath.c_str(), buffer, len, recognitionSettings);
} 

Recognition of small fonts

void read_small_text()
{
	const std::string filePath = current_dir + "/source.png";
	// Activate font upscaling
	RecognitionSettings recognitionSettings;
	recognitionSettings.small_text = true;
	// Extract text from image
	const size_t len = 10000;
	wchar_t buffer[len] = { 0 };
	size_t result = asposeocr_page_settings(f.c_str(), buffer, len, recognitionSettings);
}