Aspose.OCR for CPP 21.2 Release Notes

This page contains release notes for Aspose.OCR for C++ 21.2.

GPU version: 21.2.0

All Features

Key	Summary	Category
OCRCPP-169	Add blacklist for recognition symbols	Enhancement

Enhancements

• Added ability to set ignored symbols for recognition

Public API and Backwards Incompatible Changes

New API

Structure

Description

RecognitionSettings

Settings for the image recognition. Contains elements that allow customizing the recognition process.  Fields: - all_image (true/false) - turning on means recognizing the image as a single area - correct_skew - detects orientation and auto-rotate image if needed - alphabet - set of allowed characters in the alphabet (symbols for recognition). L”” by default (all alphabet allowed) - format - export_format. Allowed options - text or JSON. In JSON format for rectangles, you will get the extended result with areas coordinates and text in these areas - rectangles - an array of rect structure to set areas for recognition - rectangles_size - the size of rectangles array - skew - rotate image on specified angle. Doesn’t work if rectangles are specified - language_alphabet - language used for OCR. Supported languages: English (en), German (de), Portuguese (pt), Spanish (es), French (fr), Italian (it). Multi-language by default. new field:  - ignoredCharacters - sets blacklist for recognition symbols. L”” by default (all alphabet allowed)

Removed APIs

No Changes

Example (C++17 since filesystem)

#include <iostream>
#include <aspose_ocr.h>
#include <filesystem>
#include <corecrt_io.h>
#include <fcntl.h>
int main()
{
_setmode(_fileno(stdout), _O_U16TEXT);
//Current directory const
std::filesystem::path path{ std::filesystem::current_path() };
/* asposeocr_set_license */
const std::string lic = "/Aspose.Total.lic";
std::filesystem::path license = path.string() + lic;
asposeocr_set_license(license.string().c_str());
/* asposeocr_set_license */
bool lic_result = asposeocr_get_state();
//Recognize image
std::filesystem::path image = path.string() + "/p.png";
// Prepare buffer for result (in symbols, len_byte = len * sizeof(wchar_t))
const size_t len = 4096; 
wchar_t buffer[len] = { 0 };

 
/* asposeocr_page_from_uri*/

const char* uri = "https://www.castlegateit.co.uk/wp-content/uploads/2016/09/justified_text.png";

RecognitionSettings settings;
   settings.all_image = true;
   settings.ignoredCharacters = L"ao1.,";

size_t res_len = asposeocr_page_from_uri(uri, buffer, len, settings);
std::wcout << buffer;

/* asposeocr_page_settings*/

RecognitionSettings settings_img;
   settings_img.all_image = false; 
   settings_img.ignoredCharacters = L"0123456789";

res_len = asposeocr_page_settings(image.string().c_str(), buffer, len, settings_img);
std::wcout << buffer;
}