do_ocr_single_class_svmT_do_ocr_single_class_svmDoOcrSingleClassSvmDoOcrSingleClassSvmdo_ocr_single_class_svm (Operator)

Name

do_ocr_single_class_svmT_do_ocr_single_class_svmDoOcrSingleClassSvmDoOcrSingleClassSvmdo_ocr_single_class_svm — Classify a single character with an SVM-based OCR classifier.

Signature

do_ocr_single_class_svm(Character, Image : : OCRHandle, Num : Class)

Description

do_ocr_single_class_svmdo_ocr_single_class_svmDoOcrSingleClassSvmDoOcrSingleClassSvmDoOcrSingleClassSvmdo_ocr_single_class_svm computes the best NumNumNumNumnumnum classes of the character given by the region CharacterCharacterCharacterCharactercharactercharacter and the gray values ImageImageImageImageimageimage with the OCR classifier OCRHandleOCRHandleOCRHandleOCRHandleOCRHandleocrhandle and returns the classes in ClassClassClassClassclassValclass. Because multiple classes may be returned by do_ocr_single_class_svmdo_ocr_single_class_svmDoOcrSingleClassSvmDoOcrSingleClassSvmDoOcrSingleClassSvmdo_ocr_single_class_svm, CharacterCharacterCharacterCharactercharactercharacter may only contain a single region (a single character). If multiple characters should be classified in a single call, do_ocr_multi_class_svmdo_ocr_multi_class_svmDoOcrMultiClassSvmDoOcrMultiClassSvmDoOcrMultiClassSvmdo_ocr_multi_class_svm must be used. Before calling do_ocr_single_class_svmdo_ocr_single_class_svmDoOcrSingleClassSvmDoOcrSingleClassSvmDoOcrSingleClassSvmdo_ocr_single_class_svm, the classifier must be trained with trainf_ocr_class_svmtrainf_ocr_class_svmTrainfOcrClassSvmTrainfOcrClassSvmTrainfOcrClassSvmtrainf_ocr_class_svm.

Execution Information

Multithreading type: reentrant (runs in parallel with non-exclusive operators).
Multithreading scope: global (may be called from any thread).
Processed without parallelization.

Parameters

CharacterCharacterCharacterCharactercharactercharacter (input_object) region → object

Character to be recognized.

ImageImageImageImageimageimage (input_object) singlechannelimage → object (byte / uint2)

Gray values of the character.

OCRHandleOCRHandleOCRHandleOCRHandleOCRHandleocrhandle (input_control) ocr_svm → (handle)

Handle of the OCR classifier.

NumNumNumNumnumnum (input_control) integer-array → (integer)

Number of best classes to determine.

Default value: 1

Suggested values: 1, 2, 3, 4, 5

ClassClassClassClassclassValclass (output_control) string(-array) → (string)

Result of classifying the character with the SVM.

Result

If the parameters are valid the operator do_ocr_single_class_svmdo_ocr_single_class_svmDoOcrSingleClassSvmDoOcrSingleClassSvmDoOcrSingleClassSvmdo_ocr_single_class_svm returns the value 2 (H_MSG_TRUE). If necessary, an exception is raised.