Tesseract Constructor (String, String, OcrEngineMode, String, Boolean)

public Tesseract(
	string dataPath,
	string language,
	OcrEngineMode mode,
	string whiteList = null,
	bool enforceLocale = true
)

Public Sub New ( 
	dataPath As String,
	language As String,
	mode As OcrEngineMode,
	Optional whiteList As String = Nothing,
	Optional enforceLocale As Boolean = true
)

public:
Tesseract(
	String^ dataPath, 
	String^ language, 
	OcrEngineMode mode, 
	String^ whiteList = nullptr, 
	bool enforceLocale = true
)

new : 
        dataPath : string * 
        language : string * 
        mode : OcrEngineMode * 
        ?whiteList : string * 
        ?enforceLocale : bool 
(* Defaults:
        let _whiteList = defaultArg whiteList null
        let _enforceLocale = defaultArg enforceLocale true
*)
-> Tesseract

Parameters

dataPath

Type: SystemString
The datapath must be the name of the directory of tessdata and must end in / . Any name after the last / will be stripped.

language

Type: SystemString
The language is (usually) an ISO 639-3 string or NULL will default to eng. It is entirely safe (and eventually will be efficient too) to call Init multiple times on the same instance to change language, or just to reset the classifier. The language may be a string of the form [~]%lt;lang>[+[~]<lang>]* indicating that multiple languages are to be loaded. Eg hin+eng will load Hindi and English. Languages may specify internally that they want to be loaded with one or more other languages, so the ~ sign is available to override that. Eg if hin were set to load eng by default, then hin+~eng would force loading only hin. The number of loaded languages is limited only by memory, with the caveat that loading additional languages will impact both speed and accuracy, as there is more work to do to decide on the applicable language, and there is more chance of hallucinating incorrect words.

mode

Type: Emgu.CV.OCROcrEngineMode
OCR engine mode

whiteList (Optional)

Type: SystemString
This can be used to specify a white list for OCR. e.g. specify "1234567890" to recognize digits only. Note that the white list currently seems to only work with OcrEngineMode.OEM_TESSERACT_ONLY

enforceLocale (Optional)

Type: SystemBoolean
If true, we will change the locale to "C" before initializing the tesseract engine and reverting it back once the tesseract initialiation is completer. If false, it will be the user's responsibility to set the locale to "C", otherwise an exception will be thrown. See https://github.com/tesseract-ocr/tesseract/issues/1670

Reference