TIEVisionLibrary.createOCR
Declaration
function createOCR(language: PAnsiChar = nil; engine: TIEVisionOCREngine = ievOCRDefault): TIEVisionOCR; overload; safecall;function createOCR(path: PAnsiChar; language: PAnsiChar; engine: TIEVisionOCREngine = ievOCRDefault): TIEVisionOCR; overload; safecall;
function createOCR(path: PAnsiChar; languages: TIEVisionVectorString; engine: TIEVisionOCREngine = ievOCRDefault): TIEVisionOCR; overload; safecall;
Description
Create an OCR object for the specified language.Many languages are available as separate files.
| Parameter | Description |
|---|---|
| language | Language code of OCR recognition (e.g. 'eng', 'fra') |
| path | Folder containing language data files |
| engine | OCR engine to use |
| languages | A list of languages |
Note: A shortcut method for this is available: OCR
Demos
 | Demos\IEVision\OCR\OCR.dpr |
| | Demos\IEVision\OCRwithLayout\OCRwithLayout.dpr |
Examples
OCR := IEVisionLib.createOCR(IEOCRLanguageList[OCR_English_language].Code);str := OCR.recognize(ImageEnView1.IEBitmap.GetIEVisionImage(), IEVisionRect(0, 0, 0, 0)).c_str();
OR
sLanguage := 'fra'; // French
if FileExists( IncludeTrailingPathDelimiter( ExtractFilePath( Application.ExeName )) + sLanguage + '.traineddata' ) = False then
raise Exception.create( 'Language file not found' );
OCR := IEVisionLib.createOCR( sLanguage );
str := OCR.recognize(ImageEnView1.IEBitmap.GetIEVisionImage(), IEVisionRect(0, 0, 0, 0)).c_str();
OR for multiple languages:
var
langs: TIEVisionVectorString;
langs := IEVisionLib.createVectorString();
langs.push_back( IEOCRLanguageList[ OCR_English_language ].Code ); // load English
langs.push_back( IEOCRLanguageList[ OCR_Italian_language ].Code ); // load Italian
m_OCR := IEVisionLib.createOCR( '', langs );
str := m_OCR.recognize(ImageEnView1.IEBitmap.GetIEVisionImage(), IEVisionRect(0, 0, 0, 0)).c_str();