HALCON 18.05 / HALCON Operator Reference / OCR / K-Nearest Neighbors
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write_ocr_class_knnT_write_ocr_class_knnWriteOcrClassKnnWriteOcrClassKnn (Operator)

Name

write_ocr_class_knnT_write_ocr_class_knnWriteOcrClassKnnWriteOcrClassKnn — Write a k-NN classifier for an OCR task to a file.

Signature

write_ocr_class_knn( : : OCRHandle, FileName : )

Herror T_write_ocr_class_knn(const Htuple OCRHandle, const Htuple FileName)

void WriteOcrClassKnn(const HTuple& OCRHandle, const HTuple& FileName)

void HOCRKnn::WriteOcrClassKnn(const HString& FileName) const

void HOCRKnn::WriteOcrClassKnn(const char* FileName) const

static void HOperatorSet.WriteOcrClassKnn(HTuple OCRHandle, HTuple fileName)

void HOCRKnn.WriteOcrClassKnn(string fileName)

Description

write_ocr_class_knnwrite_ocr_class_knnWriteOcrClassKnnWriteOcrClassKnnWriteOcrClassKnn writes the k-NN classifier for an OCR task with the OCRHandleOCRHandleOCRHandleOCRHandleOCRHandle to the file given by FileNameFileNameFileNameFileNamefileName. If a file extension is not specified in FileNameFileNameFileNameFileNamefileName the default extension '.onc'".onc"".onc"".onc"".onc" is appended to FileNameFileNameFileNameFileNamefileName. write_ocr_class_knnwrite_ocr_class_knnWriteOcrClassKnnWriteOcrClassKnnWriteOcrClassKnn is typically called after the classifier has been trained with trainf_ocr_class_knntrainf_ocr_class_knnTrainfOcrClassKnnTrainfOcrClassKnnTrainfOcrClassKnn. The classifier can be read with read_ocr_class_knnread_ocr_class_knnReadOcrClassKnnReadOcrClassKnnReadOcrClassKnn.

Execution Information

Parameters

OCRHandleOCRHandleOCRHandleOCRHandleOCRHandle (input_control)  ocr_knn → HOCRKnn, HTupleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)

Handle of the k-NN classifier for an OCR task.

FileNameFileNameFileNameFileNamefileName (input_control)  filename.write → HTupleHTupleHtuple (string) (string) (HString) (char*)

File name.

File extension: .onc

Result

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

Possible Predecessors

trainf_ocr_class_knntrainf_ocr_class_knnTrainfOcrClassKnnTrainfOcrClassKnnTrainfOcrClassKnn, read_ocr_class_knnread_ocr_class_knnReadOcrClassKnnReadOcrClassKnnReadOcrClassKnn

See also

create_class_knncreate_class_knnCreateClassKnnCreateClassKnnCreateClassKnn, read_ocr_class_knnread_ocr_class_knnReadOcrClassKnnReadOcrClassKnnReadOcrClassKnn

References

Marius Muja, David G. Lowe: “Fast Approximate Nearest Neighbors with Automatic Algorithm Configuration”; International Conference on Computer Vision Theory and Applications (VISAPP 09); 2009.

Module

OCR/OCV

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HALCON Operator Reference 18.05 Copyright © 1996-2018 MVTec Software GmbH