HALCON 22.11.0.0 / HALCON Operator Reference / Legacy / OCR
ClassesClasses | | Operators

read_ocrT_read_ocrReadOcrReadOcrread_ocr (Operator)

Name

read_ocrT_read_ocrReadOcrReadOcrread_ocr — Read an OCR classifier from a file.

Warning

read_ocrread_ocrReadOcrReadOcrReadOcrread_ocr is obsolete and is only provided for reasons of backward compatibility. New applications should use the MLP, SVM or CNN based operators instead.

Signature

read_ocr( : : FileName : OcrHandle)

Herror T_read_ocr(const Htuple FileName, Htuple* OcrHandle)

void ReadOcr(const HTuple& FileName, HTuple* OcrHandle)

void HOCRBox::HOCRBox(const HString& FileName)

void HOCRBox::HOCRBox(const char* FileName)

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

void HOCRBox::ReadOcr(const HString& FileName)

void HOCRBox::ReadOcr(const char* FileName)

void HOCRBox::ReadOcr(const wchar_t* FileName)   (Windows only)

static void HOperatorSet.ReadOcr(HTuple fileName, out HTuple ocrHandle)

public HOCRBox(string fileName)

void HOCRBox.ReadOcr(string fileName)

def read_ocr(file_name: str) -> HHandle

Description

The operator read_ocrread_ocrReadOcrReadOcrReadOcrread_ocr reads an OCR classifier from a file FileNameFileNameFileNameFileNamefileNamefile_name. This file will hereby be searched in the directory ($HALCONROOT/ocr/) as well as in the currently used directory. If too many classifiers have been loaded, an error message will be displayed.

Execution Information

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

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

Name of the OCR classifier file.

Default value: 'testnet' "testnet" "testnet" "testnet" "testnet" "testnet"

File extension: .obc, .fnt

OcrHandleOcrHandleOcrHandleOcrHandleocrHandleocr_handle (output_control)  ocr_box → HOCRBox, HTupleHHandleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)

ID of the read OCR classifier.

Result

If the indicated file is available and the format is correct, the operator read_ocrread_ocrReadOcrReadOcrReadOcrread_ocr returns the value 2 (H_MSG_TRUE). Otherwise an exception will be raised.

Possible Predecessors

reset_obj_dbreset_obj_dbResetObjDbResetObjDbResetObjDbreset_obj_db

Possible Successors

do_ocr_multido_ocr_multiDoOcrMultiDoOcrMultiDoOcrMultido_ocr_multi, do_ocr_singledo_ocr_singleDoOcrSingleDoOcrSingleDoOcrSingledo_ocr_single, traind_ocr_class_boxtraind_ocr_class_boxTraindOcrClassBoxTraindOcrClassBoxTraindOcrClassBoxtraind_ocr_class_box, trainf_ocr_class_boxtrainf_ocr_class_boxTrainfOcrClassBoxTrainfOcrClassBoxTrainfOcrClassBoxtrainf_ocr_class_box

See also

write_ocrwrite_ocrWriteOcrWriteOcrWriteOcrwrite_ocr, do_ocr_multido_ocr_multiDoOcrMultiDoOcrMultiDoOcrMultido_ocr_multi, traind_ocr_class_boxtraind_ocr_class_boxTraindOcrClassBoxTraindOcrClassBoxTraindOcrClassBoxtraind_ocr_class_box, trainf_ocr_class_boxtrainf_ocr_class_boxTrainfOcrClassBoxTrainfOcrClassBoxTrainfOcrClassBoxtrainf_ocr_class_box

Module

OCR/OCV

ClassesClasses | | Operators
HALCON Operator Reference 22.11.0.0 Copyright © 1996-2022 MVTec Software GmbH
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