ocr_get_featuresT_ocr_get_featuresOcrGetFeaturesOcrGetFeaturesocr_get_features (算子)

名称

ocr_get_featuresT_ocr_get_featuresOcrGetFeaturesOcrGetFeaturesocr_get_features — 访问与字符对应的特征。

警告

ocr_get_featuresocr_get_featuresOcrGetFeaturesOcrGetFeaturesOcrGetFeaturesocr_get_features 已过时，仅出于向后兼容性考虑而保留。 New applications should use the MLP, SVM or CNN based operators instead.

签名

ocr_get_features(Character : : OcrHandle : FeatureVector)

描述

算子 ocr_get_featuresocr_get_featuresOcrGetFeaturesOcrGetFeaturesOcrGetFeaturesocr_get_features calculates the features for the given CharacterCharacterCharacterCharactercharactercharacter. The type and number of features is determined by the classifier OcrHandleOcrHandleOcrHandleOcrHandleocrHandleocr_handle. FeatureVectorFeatureVectorFeatureVectorFeatureVectorfeatureVectorfeature_vector contains the same values which are used inside operators like traind_ocr_class_boxtraind_ocr_class_boxTraindOcrClassBoxTraindOcrClassBoxTraindOcrClassBoxtraind_ocr_class_box or trainf_ocr_class_boxtrainf_ocr_class_boxTrainfOcrClassBoxTrainfOcrClassBoxTrainfOcrClassBoxtrainf_ocr_class_box。

执行信息

多线程类型：可重入（与非独占算子并行运行）。
多线程作用域：全局（可从任何线程调用）。
未采用并行化处理。

参数

CharacterCharacterCharacterCharactercharactercharacter (输入对象) singlechannelimage → object (byte / uint2)

待训练的字符。

OcrHandleOcrHandleOcrHandleOcrHandleocrHandleocr_handle (输入控制) ocr_box → (handle)

ID of the desired OCR-classifier.

FeatureVectorFeatureVectorFeatureVectorFeatureVectorfeatureVectorfeature_vector (输出控制) real-array → (real)

Feature vector.

结果

如果参数正确，算子 ocr_get_featuresocr_get_featuresOcrGetFeaturesOcrGetFeaturesOcrGetFeaturesocr_get_features 返回值 2 ( H_MSG_TRUE )。否则将抛出异常。

可能的前趋

read_ocrread_ocrReadOcrReadOcrReadOcrread_ocr, reduce_domainreduce_domainReduceDomainReduceDomainReduceDomainreduce_domain, thresholdthresholdThresholdThresholdThresholdthreshold, connectionconnectionConnectionConnectionConnectionconnection

另见

trainf_ocr_class_boxtrainf_ocr_class_boxTrainfOcrClassBoxTrainfOcrClassBoxTrainfOcrClassBoxtrainf_ocr_class_box, traind_ocr_class_boxtraind_ocr_class_boxTraindOcrClassBoxTraindOcrClassBoxTraindOcrClassBoxtraind_ocr_class_box

模块

光学字符识别/光学字符验证

算子