Operator Reference

HALCON Operator Reference / Classification / Support Vector Machines
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evaluate_class_svmT_evaluate_class_svmEvaluateClassSvmEvaluateClassSvmevaluate_class_svm (Operator)

evaluate_class_svmT_evaluate_class_svmEvaluateClassSvmEvaluateClassSvmevaluate_class_svm — Evaluate a feature vector by a support vector machine.

Signature

evaluate_class_svm( : : SVMHandle, Features : Result)

Herror T_evaluate_class_svm(const Htuple SVMHandle, const Htuple Features, Htuple* Result)

void EvaluateClassSvm(const HTuple& SVMHandle, const HTuple& Features, HTuple* Result)

HTuple HClassSvm::EvaluateClassSvm(const HTuple& Features) const

static void HOperatorSet.EvaluateClassSvm(HTuple SVMHandle, HTuple features, out HTuple result)

HTuple HClassSvm.EvaluateClassSvm(HTuple features)

def evaluate_class_svm(svmhandle: HHandle, features: Sequence[float]) -> Sequence[float]

def evaluate_class_svm_s(svmhandle: HHandle, features: Sequence[float]) -> float

Description

evaluate_class_svmevaluate_class_svmEvaluateClassSvmEvaluateClassSvmevaluate_class_svm calculates for a feature vector provided in FeaturesFeaturesFeaturesfeaturesfeatures the ResultResultResultresultresult given a SVM in SVMHandleSVMHandleSVMHandleSVMHandlesvmhandle. The operator evaluate_class_svmevaluate_class_svmEvaluateClassSvmEvaluateClassSvmevaluate_class_svm can only be used if the SVM was created in the ModeModeModemodemode = 'novelty-detection'"novelty-detection""novelty-detection""novelty-detection""novelty-detection". If the feature vector lies in the class, a ResultResultResultresultresult value bigger 1.0 is returned. If the feature vector lies outside the class boundary, e.g., is an outlier, a value smaller 1.0 is returned.

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

SVMHandleSVMHandleSVMHandleSVMHandlesvmhandle (input_control)  class_svm → HClassSvm, HTupleHHandleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)

SVM handle.

FeaturesFeaturesFeaturesfeaturesfeatures (input_control)  real-array → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)

Feature vector.

ResultResultResultresultresult (output_control)  real(-array) → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)

Result of evaluating the feature vector with the SVM.

Result

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

Possible Predecessors

train_class_svmtrain_class_svmTrainClassSvmTrainClassSvmtrain_class_svm, read_class_svmread_class_svmReadClassSvmReadClassSvmread_class_svm

See also

create_class_svmcreate_class_svmCreateClassSvmCreateClassSvmcreate_class_svm

Module

Foundation

ClassesClasses | | Operators