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read_ocr_class_mlpread_ocr_class_mlpReadOcrClassMlpread_ocr_class_mlpReadOcrClassMlpReadOcrClassMlp (Operator)

Name

read_ocr_class_mlpread_ocr_class_mlpReadOcrClassMlpread_ocr_class_mlpReadOcrClassMlpReadOcrClassMlp — Lesen eines OCR-Klassifikators aus Datei.

Signatur

read_ocr_class_mlp( : : FileName : OCRHandle)

Herror read_ocr_class_mlp(const char* FileName, Hlong* OCRHandle)

Herror T_read_ocr_class_mlp(const Htuple FileName, Htuple* OCRHandle)

Herror read_ocr_class_mlp(const HTuple& FileName, Hlong* OCRHandle)

void HOCRMlp::ReadOcrClassMlp(const HTuple& FileName)

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

void HOCRMlp::HOCRMlp(const HString& FileName)

void HOCRMlp::HOCRMlp(const char* FileName)

void HOCRMlp::ReadOcrClassMlp(const HString& FileName)

void HOCRMlp::ReadOcrClassMlp(const char* FileName)

void HOperatorSetX.ReadOcrClassMlp(
[in] VARIANT FileName, [out] VARIANT* OCRHandle)

void HOCRMlpX.ReadOcrClassMlp([in] BSTR FileName)

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

public HOCRMlp(string fileName)

void HOCRMlp.ReadOcrClassMlp(string fileName)

Beschreibung

read_ocr_class_mlpread_ocr_class_mlpReadOcrClassMlpread_ocr_class_mlpReadOcrClassMlpReadOcrClassMlp liest einen mit write_ocr_class_mlpwrite_ocr_class_mlpWriteOcrClassMlpwrite_ocr_class_mlpWriteOcrClassMlpWriteOcrClassMlp abgespeicherten OCR-Klassifikator ein. Da das Trainieren eines OCR-Klassifikators relativ lange dauern kann, wird der Klassifikator typischerweise in einem Offline-Prozess trainiert und mit write_ocr_class_mlpwrite_ocr_class_mlpWriteOcrClassMlpwrite_ocr_class_mlpWriteOcrClassMlpWriteOcrClassMlp gespeichert. Im Online-Prozess wird der Klassifikator mit read_ocr_class_mlpread_ocr_class_mlpReadOcrClassMlpread_ocr_class_mlpReadOcrClassMlpReadOcrClassMlp gelesen und danach zur Klassifikation mit do_ocr_single_class_mlpdo_ocr_single_class_mlpDoOcrSingleClassMlpdo_ocr_single_class_mlpDoOcrSingleClassMlpDoOcrSingleClassMlp oder do_ocr_multi_class_mlpdo_ocr_multi_class_mlpDoOcrMultiClassMlpdo_ocr_multi_class_mlpDoOcrMultiClassMlpDoOcrMultiClassMlp verwendet.

HALCON stellt eine Anzahl vortrainierter OCR-Klassifikatoren zur Verfügung (siehe Solution Guide I, Kapitel 'OCR', Abschnitt 'Pretrained OCR Fonts'). Diese vortrainierten OCR-Klassifikatoren ermöglichen es, eine Vielzahl an Zeichensätzen zu lesen, ohne vorher einen OCR-Klassifikator trainieren zu müssen. Das Training der vortrainierten OCR-Klassifikatoren erfolgte mit Zeichen, die dunkel auf hellem Hintergrund gedruckt waren.

Parallelisierung

Dieser Operator liefert ein Handle zurück. Es ist zu beachten, dass der Zustand einer Instanz dieses Handletyps durch bestimmte Operatoren geändert werden kann, obwohl das Handle als Eingabeparameter in diesen Operatoren verwendet wird.

Parameter

FileNameFileNameFileNameFileNameFileNamefileName (input_control)  filename.read → HTupleHTupleHTupleVARIANTHtuple (string) (string) (HString) (char*) (BSTR) (char*)

Name der Datei.

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Dateiendung: .omc, .fnt

OCRHandleOCRHandleOCRHandleOCRHandleOCRHandleOCRHandle (output_control)  ocr_mlp → HOCRMlp, HTupleHTupleHOCRMlp, HTupleHOCRMlpX, VARIANTHtuple (integer) (IntPtr) (Hlong) (Hlong) (Hlong) (Hlong)

Handle des OCR-Klassifikators.

Ergebnis

Sind die Parameterwerte korrekt, dann liefert read_ocr_class_mlpread_ocr_class_mlpReadOcrClassMlpread_ocr_class_mlpReadOcrClassMlpReadOcrClassMlp den Wert 2 (H_MSG_TRUE). Gegebenenfalls wird eine Fehlerbehandlung durchgeführt.

Nachfolger

do_ocr_single_class_mlpdo_ocr_single_class_mlpDoOcrSingleClassMlpdo_ocr_single_class_mlpDoOcrSingleClassMlpDoOcrSingleClassMlp, do_ocr_multi_class_mlpdo_ocr_multi_class_mlpDoOcrMultiClassMlpdo_ocr_multi_class_mlpDoOcrMultiClassMlpDoOcrMultiClassMlp

Siehe auch

create_ocr_class_mlpcreate_ocr_class_mlpCreateOcrClassMlpcreate_ocr_class_mlpCreateOcrClassMlpCreateOcrClassMlp, write_ocr_class_mlpwrite_ocr_class_mlpWriteOcrClassMlpwrite_ocr_class_mlpWriteOcrClassMlpWriteOcrClassMlp, read_class_mlpread_class_mlpReadClassMlpread_class_mlpReadClassMlpReadClassMlp, write_class_mlpwrite_class_mlpWriteClassMlpwrite_class_mlpWriteClassMlpWriteClassMlp

Modul

OCR/OCV

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