C++ API Reference - Recognizing

RecognizeByBuffer

Recognizes text from the memory buffer containing image pixels in defined format.

int dynamsoft::dlr::CLabelRecognition::RecognizeByBuffer(const DLRImageData* imageData, const char* templateName)

Parameters [in] imageData A struct of DLRImageData that represents an image.
[in] templateName The template name. A template name is the value of key LabelRecognitionParameter.Name defined in JSON formatted settings. If no template name is specified, current runtime settings will be used.

Return Value Returns error code (returns 0 if the function operates successfully).
You can call GetErrorString to get detailed error message.

Code Snippet

CLabelRecognition* recognizer = new CLabelRecognition();
recognizer->InitLicense("t0260NwAAAHV***************");
//Generate imageData from somewhere else
int errorCode = recognizer->RecognizeByBuffer(imageData, "");
delete recognizer;

RecognizeByFile

Recognizes text from a specified image file.

int dynamsoft::dlr::CLabelRecognition::RecognizeByFile (const char* fileName, const char* templateName)	

Parameters [in] fileName A string defining the file name.
[in] templateName The template name. A template name is the value of key LabelRecognitionParameter.Name defined in JSON formatted settings. If no template name is specified, current runtime settings will be used.

Return Value Returns error code (returns 0 if the function operates successfully).
You can call GetErrorString to get detailed error message.

Code Snippet

CLabelRecognition* recognizer = new CLabelRecognition();
recognizer->InitLicense("t0260NwAAAHV***************");
int errorCode = recognizer->RecognizeByFile("C:\\Program Files (x86)\\Dynamsoft\\{Version number}\\Images\\AllSupportedBarcodeTypes.tif", "");
delete recognizer;