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ABBYY FineReader Engine does not currently support Arabic ICR. However, recognizing specifically Arabic digits is possible, and this article describes the necessary steps. In addition to the procedure outlined in Recognizing Handwritten Texts, for Arabic digits recognition, you need to create a custom language with the alphabet consisting only of 10 digit symbols and set it as the recognition language for every block with digits. Therefore, to recognize Arabic handprinted digits do the following:
  1. Create a new text language using the CreateTextLanguage method of the LanguageDatabase object.
  2. Using the LetterSet property of the BaseLanguage object within the TextLanguage object, set the language alphabet containing the following characters: ٠١٢٣٤٥٦٧٨٩.
  3. For each block containing handprinted Arabic digits specify recognition parameters via the ITextBlock::RecognizerParams property:
    • Set the TextLanguage property of the RecognizerParams object to the language you created in the previous step.
    • Set the TextTypes property of the RecognizerParams object to TT_Handwritten.
    • If the digits are enclosed in a frame, box, etc., set up the type of marking around the letters in the FieldMarkingType property of the RecognizerParams object. If each digit is written in a separate cell, use also the CellsCount property to set up the number of character cells in the block.

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Windows Samples

// Global ABBYY FineReader Engine object
FREngine::IEnginePtr Engine;
...
// Open an image file
...
// Create a custom language
FREngine::ILanguageDatabasePtr pLanguageDatabase = Engine->CreateLanguageDatabase();
FREngine::ITextLanguagePtr pTextLanguage = pLanguageDatabase->CreateTextLanguage();
FREngine::IBaseLanguagesPtr pBaseLanguages = pTextLanguage->BaseLanguages;
FREngine::IBaseLanguagePtr pBaseLanguage = pBaseLanguages->AddNew();
// Set the alphabet
pBaseLanguage->put_LetterSet( FREngine::BLLS_Alphabet, L"٠١٢٣٤٥٦٧٨٩" );
// Obtain the Layout object from the page
FREngine::ILayoutPtr layout = frPage->get_Layout();
// Set block region
FREngine::IRegionPtr pRegion = Engine->CreateRegion();
pRegion->AddRect( 491, 314, 2268, 404 );
// Create a new block
FREngine::IBlockPtr newBlock = layout->Blocks->AddNew( FREngine::BT_Text, pRegion, 0 );
FREngine::ITextBlockPtr textBlock = newBlock->GetAsTextBlock();
// Set the custom language
textBlock->RecognizerParams->TextLanguage = pTextLanguage;
// Specify the text type
textBlock->RecognizerParams->TextTypes = FREngine::TT_Handwritten;
// Specify the type of marking around the letters
textBlock->RecognizerParams->FieldMarkingType = FREngine::FMT_SimpleText;
// Recognition and export
...

// Global ABBYY FineReader Engine object
FREngine.IEngine engine;
...
// Open an image file
...
// Create a custom language
FREngine.ILanguageDatabase languageDatabase = engine.CreateLanguageDatabase();
FREngine.ITextLanguage textLanguage = languageDatabase.CreateTextLanguage();
FREngine.IBaseLanguages baseLanguages = textLanguage.BaseLanguages;
FREngine.IBaseLanguage baseLanguage = baseLanguages.AddNew();
// Set the alphabet
baseLanguage.set_LetterSet( FREngine.BaseLanguageLetterSetEnum.BLLS_Alphabet, "٠١٢٣٤٥٦٧٨٩" );
// Obtain the Layout object from the page
FREngine.ILayout layout = frPage.Layout;
// Set block region
FREngine.IRegion region = engine.CreateRegion();
region.AddRect( 491, 314, 2268, 404 );
// Create a new block
FREngine.IBlock newBlock = layout.Blocks.AddNew( FREngine.BlockTypeEnum.BT_Text, region, 0 );
FREngine.ITextBlock textBlock = newBlock.GetAsTextBlock();
// Set the custom language
textBlock.RecognizerParams.TextLanguage = textLanguage;
// Specify the text type
textBlock.RecognizerParams.TextTypes = (int)FREngine.TextTypeEnum.TT_Handwritten;
// Specify the type of marking around the letters
textBlock.RecognizerParams.FieldMarkingType = FREngine.FieldMarkingTypeEnum.FMT_SimpleText;
// Recognition and export
...

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See also

RecognizerParams Recognizing Handwritten Texts Working with Languages