HALCON Reference Manual 10.0.2
Table of Contents / OCR / Support Vector Machines ClassesClassesClasses | | | Operators

do_ocr_single_class_svmT_do_ocr_single_class_svmdo_ocr_single_class_svmDoOcrSingleClassSvmDoOcrSingleClassSvm (Operator)

Name

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

Signature

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

Herror T_do_ocr_single_class_svm(const Hobject Character, const Hobject Image, const Htuple OCRHandle, const Htuple Num, Htuple* Class)

Herror do_ocr_single_class_svm(Hobject Character, Hobject Image, const HTuple& OCRHandle, const HTuple& Num, char* Class)

Herror do_ocr_single_class_svm(Hobject Character, Hobject Image, const HTuple& OCRHandle, const HTuple& Num, HTuple* Class)

HTuple HRegion::DoOcrSingleClassSvm(const HImage& Image, const HOCRSvm& OCRHandle, const HTuple& Num) const

HTuple HOCRSvm::DoOcrSingleClassSvm(const HRegion& Character, const HImage& Image, const HTuple& Num) const

void HOperatorSetX.DoOcrSingleClassSvm(
[in] IHUntypedObjectX* Character, [in] IHUntypedObjectX* Image, [in] VARIANT OCRHandle, [in] VARIANT Num, [out] VARIANT* Class)

VARIANT HRegionX.DoOcrSingleClassSvm(
[in] IHImageX* Image, [in] IHOCRSvmX* OCRHandle, [in] VARIANT Num)

VARIANT HOCRSvmX.DoOcrSingleClassSvm(
[in] IHRegionX* Character, [in] IHImageX* Image, [in] VARIANT Num)

static void HOperatorSet.DoOcrSingleClassSvm(HObject character, HObject image, HTuple OCRHandle, HTuple num, out HTuple classVal)

HTuple HRegion.DoOcrSingleClassSvm(HImage image, HOCRSvm OCRHandle, HTuple num)

HTuple HOCRSvm.DoOcrSingleClassSvm(HRegion character, HImage image, HTuple num)

Description

do_ocr_single_class_svmdo_ocr_single_class_svmdo_ocr_single_class_svmDoOcrSingleClassSvmDoOcrSingleClassSvm computes the best NumNumNumNumnum classes of the character given by the region CharacterCharacterCharacterCharactercharacter and the gray values ImageImageImageImageimage with the OCR classifier OCRHandleOCRHandleOCRHandleOCRHandleOCRHandle and returns the classes in ClassClassClassClassclassVal. Because multiple classes may be returned by do_ocr_single_class_svmdo_ocr_single_class_svmdo_ocr_single_class_svmDoOcrSingleClassSvmDoOcrSingleClassSvm, CharacterCharacterCharacterCharactercharacter 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_svmdo_ocr_multi_class_svmDoOcrMultiClassSvmDoOcrMultiClassSvm must be used. Before calling do_ocr_single_class_svmdo_ocr_single_class_svmdo_ocr_single_class_svmDoOcrSingleClassSvmDoOcrSingleClassSvm, the classifier must be trained with trainf_ocr_class_svmtrainf_ocr_class_svmtrainf_ocr_class_svmTrainfOcrClassSvmTrainfOcrClassSvm.

Parallelization

Parameters

CharacterCharacterCharacterCharactercharacter (input_object)  region → objectHRegionHRegionHRegionXHobject

Character to be recognized.

ImageImageImageImageimage (input_object)  image → objectHImageHImageHImageXHobject (byte / uint2)

Gray values of the character.

OCRHandleOCRHandleOCRHandleOCRHandleOCRHandle (input_control)  ocr_svm → HOCRSvm, HTupleHOCRSvm, HTupleHOCRSvmX, VARIANTHtuple (integer) (IntPtr) (Hlong) (Hlong) (Hlong)

Handle of the OCR classifier.

NumNumNumNumnum (input_control)  integer-array → HTupleHTupleVARIANTHtuple (integer) (int / long) (Hlong) (Hlong) (Hlong)

Number of best classes to determine.

Default value: 1

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

ClassClassClassClassclassVal (output_control)  string(-array) → HTupleHTupleVARIANTHtuple (string) (string) (char*) (BSTR) (char*)

Result of classifying the character with the SVM.

Result

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

Possible Predecessors

trainf_ocr_class_svmtrainf_ocr_class_svmtrainf_ocr_class_svmTrainfOcrClassSvmTrainfOcrClassSvm, read_ocr_class_svmread_ocr_class_svmread_ocr_class_svmReadOcrClassSvmReadOcrClassSvm

Alternatives

do_ocr_multi_class_svmdo_ocr_multi_class_svmdo_ocr_multi_class_svmDoOcrMultiClassSvmDoOcrMultiClassSvm

See also

create_ocr_class_svmcreate_ocr_class_svmcreate_ocr_class_svmCreateOcrClassSvmCreateOcrClassSvm, classify_class_svmclassify_class_svmclassify_class_svmClassifyClassSvmClassifyClassSvm

Module

OCR/OCV

Table of Contents / OCR / Support Vector Machines ClassesClassesClasses | | | Operators
HALCON Reference Manual 10.0.2 Copyright © 1996-2011 MVTec Software GmbH