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Functions
FineRecognizeRegion Function
This function recognizes all text lines in the specified region. A region is an
array of bounding rectangles. Each rectangle represents one text line. This
function is useful when you need to recognize a specific business card field with
the help of a custom
dictionary.
C Syntax
TFineErrorCode FineRecognizeRegion(
const TLanguageID languages[],
const TFinePatternsPtr patterns,
const TFinePatternsPtr* cjkPatterns,
const TFineDictionaryPtr dictionaries[],
const CFineImage* image,
int regionLength,
const RECT* regionRects,
TFineImageProcessingOptions imageProcessingOptions,
TFineRecognitionMode recMode,
TFineRecognitionConfidenceLevel confidenceLevel,
CFineLayout** layoutBuff,
TFineRotationType* rotation,
TFineProgressCallbackFunction progressCallback,
TFinePrebuiltDataCallbackFunction prebuiltDataCallback
);
Parameters
- languages[]
- [in] The list of language IDs as an array of the
TLanguageID constants terminated by LID_Undefined.
We do not recommend adding more than two recognition
languages to the list.
- patterns
- [in] The address of
patterns as a
TFinePatternsPtr variable.
- cjkPatterns
- [in] The zero-terminated list of pointers to
the patterns for
CJK languages.
- dictionaries[]
- [in] The zero-terminated list of
dictionaries as an
array of the
TFineDictionaryPtr variables.
- image
- [in] The image to be recognized as a
CFineImage variable.
- regionLength
- [in] The number of rectangles of the
specified region.
- regionRects
- [in] The array of rectangles of the specified region.
- imageProcessingOptions
- [in] OR combination of the
TFineImageProcessingOptionsFlags
constants
which define the image processing parameters.
- recMode
- [in] The TFineRecognitionMode
constant which sets the recognition mode.
- confidenceLevel
- [in] The
TFineRecognitionConfidenceLevel
constant which sets the
recognition confidence level.
- layoutBuff
- [out] A pointer to pointer variable that receives the interface pointer of
a CFineLayout variable which describes the
recognized text. This pointer must be released afterwards with the help of the
FineFreeMemory function.
- rotation
- [out] The
TFineRotationType
constant which specifies the rotation angle of an input image before
recognition if the
FIPO_DetectPageOrientation flag is set in the imageProcessingOptions
parameter, otherwise, it contains 0.
Note: The recognized text coordinates correspond to a rotated image.
- progressCallback
- [in] The TFineProgressCallbackFunction
callback function that delivers the progress information.
It can be 0.
- prebuiltDataCallback
- [in] The
TFinePrebuiltDataCallbackFunction callback function that delivers the
information about the document layout, text blocks and lines before the
text recognition.
It can be 0.
Return value
The function returns the standard return values of ABBYY Mobile OCR Engine functions.
See also
Working with Languages
Working with Dictionaries