ClassesClasses | | Operators

ocr_get_featuresT_ocr_get_featuresOcrGetFeaturesOcrGetFeatures (Operator)

Name

ocr_get_featuresT_ocr_get_featuresOcrGetFeaturesOcrGetFeatures — Access the features which correspond to a character.

Warning

ocr_get_featuresocr_get_featuresOcrGetFeaturesOcrGetFeaturesOcrGetFeatures is obsolete and is only provided for reasons of backward compatibility.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

Signature

ocr_get_features(Character : : OcrHandle : FeatureVector)

Herror T_ocr_get_features(const Hobject Character, const Htuple OcrHandle, Htuple* FeatureVector)

void OcrGetFeatures(const HObject& Character, const HTuple& OcrHandle, HTuple* FeatureVector)

HTuple HImage::OcrGetFeatures(const HOCRBox& OcrHandle) const

HTuple HOCRBox::OcrGetFeatures(const HImage& Character) const

static void HOperatorSet.OcrGetFeatures(HObject character, HTuple ocrHandle, out HTuple featureVector)

HTuple HImage.OcrGetFeatures(HOCRBox ocrHandle)

HTuple HOCRBox.OcrGetFeatures(HImage character)

Description

The operator ocr_get_featuresocr_get_featuresOcrGetFeaturesOcrGetFeaturesOcrGetFeatures calculates the features for the given CharacterCharacterCharacterCharactercharacter. The type and number of features is determined by the classifier OcrHandleOcrHandleOcrHandleOcrHandleocrHandle. FeatureVectorFeatureVectorFeatureVectorFeatureVectorfeatureVector contains the same values which are used inside operators like traind_ocr_class_boxtraind_ocr_class_boxTraindOcrClassBoxTraindOcrClassBoxTraindOcrClassBox or trainf_ocr_class_boxtrainf_ocr_class_boxTrainfOcrClassBoxTrainfOcrClassBoxTrainfOcrClassBox.

Execution Information

Parameters

CharacterCharacterCharacterCharactercharacter (input_object)  singlechannelimage objectHImageHImageHobject (byte / uint2)

Characters to be trained.

OcrHandleOcrHandleOcrHandleOcrHandleocrHandle (input_control)  ocr_box HOCRBox, HTupleHTupleHtuple (integer) (IntPtr) (Hlong) (Hlong)

ID of the desired OCR-classifier.

FeatureVectorFeatureVectorFeatureVectorFeatureVectorfeatureVector (output_control)  real-array HTupleHTupleHtuple (real) (double) (double) (double)

Feature vector.

Result

If the parameters are correct, the operator ocr_get_featuresocr_get_featuresOcrGetFeaturesOcrGetFeaturesOcrGetFeatures returns the value 2 (H_MSG_TRUE). Otherwise an exception will be raised.

Possible Predecessors

read_ocrread_ocrReadOcrReadOcrReadOcr, reduce_domainreduce_domainReduceDomainReduceDomainReduceDomain, thresholdthresholdThresholdThresholdThreshold, connectionconnectionConnectionConnectionConnection

See also

trainf_ocr_class_boxtrainf_ocr_class_boxTrainfOcrClassBoxTrainfOcrClassBoxTrainfOcrClassBox, traind_ocr_class_boxtraind_ocr_class_boxTraindOcrClassBoxTraindOcrClassBoxTraindOcrClassBox

Module

OCR/OCV


ClassesClasses | | Operators