Operator Reference

HALCON Operator Reference / OCR / Support Vector Machines
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get_support_vector_num_ocr_class_svmT_get_support_vector_num_ocr_class_svmGetSupportVectorNumOcrClassSvmGetSupportVectorNumOcrClassSvmget_support_vector_num_ocr_class_svm (Operator)

get_support_vector_num_ocr_class_svmT_get_support_vector_num_ocr_class_svmGetSupportVectorNumOcrClassSvmGetSupportVectorNumOcrClassSvmget_support_vector_num_ocr_class_svm — Return the number of support vectors of an OCR classifier.

Signature

get_support_vector_num_ocr_class_svm( : : OCRHandle : NumSupportVectors, NumSVPerSVM)

Herror T_get_support_vector_num_ocr_class_svm(const Htuple OCRHandle, Htuple* NumSupportVectors, Htuple* NumSVPerSVM)

void GetSupportVectorNumOcrClassSvm(const HTuple& OCRHandle, HTuple* NumSupportVectors, HTuple* NumSVPerSVM)

Hlong HOCRSvm::GetSupportVectorNumOcrClassSvm(HTuple* NumSVPerSVM) const

static void HOperatorSet.GetSupportVectorNumOcrClassSvm(HTuple OCRHandle, out HTuple numSupportVectors, out HTuple numSVPerSVM)

int HOCRSvm.GetSupportVectorNumOcrClassSvm(out HTuple numSVPerSVM)

def get_support_vector_num_ocr_class_svm(ocrhandle: HHandle) -> Tuple[int, Sequence[int]]

Description

get_support_vector_num_ocr_class_svmget_support_vector_num_ocr_class_svmGetSupportVectorNumOcrClassSvmGetSupportVectorNumOcrClassSvmget_support_vector_num_ocr_class_svm returns in NumSupportVectorsNumSupportVectorsNumSupportVectorsnumSupportVectorsnum_support_vectors the number of support vectors that are stored in the support vector machine (SVM) given by OCRHandleOCRHandleOCRHandleOCRHandleocrhandle. get_support_vector_num_ocr_class_svmget_support_vector_num_ocr_class_svmGetSupportVectorNumOcrClassSvmGetSupportVectorNumOcrClassSvmget_support_vector_num_ocr_class_svm should be called before the labels of individual support vectors are read out with get_support_vector_ocr_class_svmget_support_vector_ocr_class_svmGetSupportVectorOcrClassSvmGetSupportVectorOcrClassSvmget_support_vector_ocr_class_svm, e.g., for visualizing which of the training data become a SV (see get_support_vector_ocr_class_svmget_support_vector_ocr_class_svmGetSupportVectorOcrClassSvmGetSupportVectorOcrClassSvmget_support_vector_ocr_class_svm). The number of SVs in each classifier is listed in NumSVPerSVMNumSVPerSVMNumSVPerSVMnumSVPerSVMnum_svper_svm. The reason that its sum differs from the number obtained in NumSupportVectorsNumSupportVectorsNumSupportVectorsnumSupportVectorsnum_support_vectors is that SV evaluations are reused throughout different binary sub-SVMs.

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

OCRHandleOCRHandleOCRHandleOCRHandleocrhandle (input_control)  ocr_svm → HOCRSvm, HTupleHHandleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)

OCR handle.

NumSupportVectorsNumSupportVectorsNumSupportVectorsnumSupportVectorsnum_support_vectors (output_control)  integer → HTupleintHTupleHtuple (integer) (int / long) (Hlong) (Hlong)

Total number of support vectors.

NumSVPerSVMNumSVPerSVMNumSVPerSVMnumSVPerSVMnum_svper_svm (output_control)  integer-array → HTupleSequence[int]HTupleHtuple (integer) (int / long) (Hlong) (Hlong)

Number of SV of each sub-SVM.

Result

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

Possible Predecessors

trainf_ocr_class_svmtrainf_ocr_class_svmTrainfOcrClassSvmTrainfOcrClassSvmtrainf_ocr_class_svm

Possible Successors

get_support_vector_ocr_class_svmget_support_vector_ocr_class_svmGetSupportVectorOcrClassSvmGetSupportVectorOcrClassSvmget_support_vector_ocr_class_svm

See also

create_ocr_class_svmcreate_ocr_class_svmCreateOcrClassSvmCreateOcrClassSvmcreate_ocr_class_svm

Module

OCR/OCV

ClassesClasses | | Operators