Operator Reference

HALCON Operator Reference / OCR / Support Vector Machines

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read_ocr_class_svmT_read_ocr_class_svmReadOcrClassSvmReadOcrClassSvmread_ocr_class_svm (Operator)

read_ocr_class_svmT_read_ocr_class_svmReadOcrClassSvmReadOcrClassSvmread_ocr_class_svm — Read a SVM-based OCR classifier from a file.

Signature

read_ocr_class_svm( : : FileName : OCRHandle)

Herror T_read_ocr_class_svm(const Htuple FileName, Htuple* OCRHandle)

void ReadOcrClassSvm(const HTuple& FileName, HTuple* OCRHandle)

void HOCRSvm::HOCRSvm(const HString& FileName)

void HOCRSvm::HOCRSvm(const char* FileName)

void HOCRSvm::HOCRSvm(const wchar_t* FileName)   ( Windows only)

void HOCRSvm::ReadOcrClassSvm(const HString& FileName)

void HOCRSvm::ReadOcrClassSvm(const char* FileName)

void HOCRSvm::ReadOcrClassSvm(const wchar_t* FileName)   ( Windows only)

static void HOperatorSet.ReadOcrClassSvm(HTuple fileName, out HTuple OCRHandle)

public HOCRSvm(string fileName)

void HOCRSvm.ReadOcrClassSvm(string fileName)

def read_ocr_class_svm(file_name: str) -> HHandle

Description

read_ocr_class_svmread_ocr_class_svmReadOcrClassSvmReadOcrClassSvmread_ocr_class_svm reads an OCR classifier that has been stored with write_ocr_class_svmwrite_ocr_class_svmWriteOcrClassSvmWriteOcrClassSvmwrite_ocr_class_svm. Since the training of an OCR classifier can consume a relatively long time, the classifier is typically trained in an offline process and written to a file with write_ocr_class_svmwrite_ocr_class_svmWriteOcrClassSvmWriteOcrClassSvmwrite_ocr_class_svm. In the online process the classifier is read with read_ocr_class_svmread_ocr_class_svmReadOcrClassSvmReadOcrClassSvmread_ocr_class_svm and subsequently used for classification with do_ocr_single_class_svmdo_ocr_single_class_svmDoOcrSingleClassSvmDoOcrSingleClassSvmdo_ocr_single_class_svm or do_ocr_multi_class_svmdo_ocr_multi_class_svmDoOcrMultiClassSvmDoOcrMultiClassSvmdo_ocr_multi_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.

This operator returns a handle. Note that the state of an instance of this handle type may be changed by specific operators even though the handle is used as an input parameter by those operators.

Parameters

FileNameFileNameFileNamefileNamefile_name (input_control)  filename.read → HTuplestrHTupleHtuple (string) (string) (HString) (char*)

File name.

File extension: .osc, .fnt

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

Handle of the OCR classifier.

Result

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

Possible Successors

do_ocr_single_class_svmdo_ocr_single_class_svmDoOcrSingleClassSvmDoOcrSingleClassSvmdo_ocr_single_class_svm, do_ocr_multi_class_svmdo_ocr_multi_class_svmDoOcrMultiClassSvmDoOcrMultiClassSvmdo_ocr_multi_class_svm

See also

create_ocr_class_svmcreate_ocr_class_svmCreateOcrClassSvmCreateOcrClassSvmcreate_ocr_class_svm, write_ocr_class_svmwrite_ocr_class_svmWriteOcrClassSvmWriteOcrClassSvmwrite_ocr_class_svm, read_class_svmread_class_svmReadClassSvmReadClassSvmread_class_svm, write_class_svmwrite_class_svmWriteClassSvmWriteClassSvmwrite_class_svm

Module

OCR/OCV

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ClassesClasses | | Operators