get_features_ocr_class_svmT_get_features_ocr_class_svmGetFeaturesOcrClassSvmGetFeaturesOcrClassSvmget_features_ocr_class_svm (Operator)
Name
get_features_ocr_class_svmT_get_features_ocr_class_svmGetFeaturesOcrClassSvmGetFeaturesOcrClassSvmget_features_ocr_class_svm — Compute the features of a character.
Signature
Description
get_features_ocr_class_svmget_features_ocr_class_svmGetFeaturesOcrClassSvmGetFeaturesOcrClassSvmget_features_ocr_class_svm computes the features of the
character given by CharacterCharacterCharactercharactercharacter with the OCR classifier
OCRHandleOCRHandleOCRHandleOCRHandleocrhandle and returns them in FeaturesFeaturesFeaturesfeaturesfeatures. In
contrast to do_ocr_single_class_svmdo_ocr_single_class_svmDoOcrSingleClassSvmDoOcrSingleClassSvmdo_ocr_single_class_svm and
do_ocr_multi_class_svmdo_ocr_multi_class_svmDoOcrMultiClassSvmDoOcrMultiClassSvmdo_ocr_multi_class_svm, the character is passed as a single
image object. Hence, before calling
get_features_ocr_class_svmget_features_ocr_class_svmGetFeaturesOcrClassSvmGetFeaturesOcrClassSvmget_features_ocr_class_svm, reduce_domainreduce_domainReduceDomainReduceDomainreduce_domain must
typically be called. The parameter TransformTransformTransformtransformtransform determines
whether the feature transformation specified with
PreprocessingPreprocessingPreprocessingpreprocessingpreprocessing in create_ocr_class_svmcreate_ocr_class_svmCreateOcrClassSvmCreateOcrClassSvmcreate_ocr_class_svm for the
classifier should be applied (TransformTransformTransformtransformtransform =
'true'"true""true""true""true") or whether the untransformed features should be
returned (TransformTransformTransformtransformtransform = 'false'"false""false""false""false").
get_features_ocr_class_svmget_features_ocr_class_svmGetFeaturesOcrClassSvmGetFeaturesOcrClassSvmget_features_ocr_class_svm can be used to inspect the
features that are used for the classification.
Execution Information
- Multithreading type: reentrant (runs in parallel with non-exclusive operators).
- Multithreading scope: global (may be called from any thread).
- Processed without parallelization.
Parameters
CharacterCharacterCharactercharactercharacter (input_object) singlechannelimage → objectHImageHObjectHObjectHobject (byte / uint2)
Input character.
OCRHandleOCRHandleOCRHandleOCRHandleocrhandle (input_control) ocr_svm → HOCRSvm, HTupleHHandleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)
Handle of the OCR classifier.
TransformTransformTransformtransformtransform (input_control) string → HTuplestrHTupleHtuple (string) (string) (HString) (char*)
Should the feature vector be transformed with
the preprocessing?
Default:
'true'
"true"
"true"
"true"
"true"
List of values:
'false'"false""false""false""false", 'true'"true""true""true""true"
FeaturesFeaturesFeaturesfeaturesfeatures (output_control) real-array → HTupleSequence[float]HTupleHtuple (real) (double) (double) (double)
Feature vector of the character.
Result
If the parameters are valid the operator
get_features_ocr_class_svmget_features_ocr_class_svmGetFeaturesOcrClassSvmGetFeaturesOcrClassSvmget_features_ocr_class_svm returns the value 2 (
H_MSG_TRUE)
. If
necessary, an exception is raised.
Possible Predecessors
trainf_ocr_class_svmtrainf_ocr_class_svmTrainfOcrClassSvmTrainfOcrClassSvmtrainf_ocr_class_svm
See also
create_ocr_class_svmcreate_ocr_class_svmCreateOcrClassSvmCreateOcrClassSvmcreate_ocr_class_svm
Module
OCR/OCV