do_ocr_multi_class_svmT_do_ocr_multi_class_svmDoOcrMultiClassSvmDoOcrMultiClassSvmdo_ocr_multi_class_svm (算子名称)
名称
do_ocr_multi_class_svmT_do_ocr_multi_class_svmDoOcrMultiClassSvmDoOcrMultiClassSvmdo_ocr_multi_class_svm — Classify multiple characters with an SVM-based OCR classifier.
参数签名
描述
do_ocr_multi_class_svmdo_ocr_multi_class_svmDoOcrMultiClassSvmDoOcrMultiClassSvmDoOcrMultiClassSvmdo_ocr_multi_class_svm computes the best class for each of
the characters given by the regions CharacterCharacterCharacterCharactercharactercharacter and the gray
values ImageImageImageImageimageimage with the SVM-based OCR classifier
OCRHandleOCRHandleOCRHandleOCRHandleOCRHandleocrhandle and returns the classes in ClassClassClassClassclassValclass. In
contrast to do_ocr_single_class_svmdo_ocr_single_class_svmDoOcrSingleClassSvmDoOcrSingleClassSvmDoOcrSingleClassSvmdo_ocr_single_class_svm,
do_ocr_multi_class_svmdo_ocr_multi_class_svmDoOcrMultiClassSvmDoOcrMultiClassSvmDoOcrMultiClassSvmdo_ocr_multi_class_svm can classify multiple characters in
one call, and therefore typically is faster than a loop that uses
do_ocr_single_class_svmdo_ocr_single_class_svmDoOcrSingleClassSvmDoOcrSingleClassSvmDoOcrSingleClassSvmdo_ocr_single_class_svm to classify single characters.
However, do_ocr_multi_class_svmdo_ocr_multi_class_svmDoOcrMultiClassSvmDoOcrMultiClassSvmDoOcrMultiClassSvmdo_ocr_multi_class_svm can only return the best
class of each character. Before calling
do_ocr_multi_class_svmdo_ocr_multi_class_svmDoOcrMultiClassSvmDoOcrMultiClassSvmDoOcrMultiClassSvmdo_ocr_multi_class_svm, the classifier must be trained with
trainf_ocr_class_svmtrainf_ocr_class_svmTrainfOcrClassSvmTrainfOcrClassSvmTrainfOcrClassSvmtrainf_ocr_class_svm.
运行信息
- Multithreading type: reentrant (runs in parallel with non-exclusive operators).
- Multithreading scope: global (may be called from any thread).
- Automatically parallelized on tuple level.
参数表
CharacterCharacterCharacterCharactercharactercharacter (input_object) region(-array) → objectHRegionHObjectHRegionHobject
Characters to be recognized.
ImageImageImageImageimageimage (input_object) singlechannelimage → objectHImageHObjectHImageHobject (byte / uint2)
Gray values of the characters.
OCRHandleOCRHandleOCRHandleOCRHandleOCRHandleocrhandle (input_control) ocr_svm → HOCRSvm, HTupleHHandleHTupleHtuple (handle) (IntPtr) (HHandle) (handle)
Handle of the OCR classifier.
ClassClassClassClassclassValclass (output_control) string(-array) → HTupleSequence[str]HTupleHtuple (string) (string) (HString) (char*)
Result of classifying the characters with the
SVM.
结果
If the parameters are valid the operator
do_ocr_multi_class_svmdo_ocr_multi_class_svmDoOcrMultiClassSvmDoOcrMultiClassSvmDoOcrMultiClassSvmdo_ocr_multi_class_svm returns the value 2 (
H_MSG_TRUE)
. If
necessary, an exception is raised.
可能的前置算子
trainf_ocr_class_svmtrainf_ocr_class_svmTrainfOcrClassSvmTrainfOcrClassSvmTrainfOcrClassSvmtrainf_ocr_class_svm,
read_ocr_class_svmread_ocr_class_svmReadOcrClassSvmReadOcrClassSvmReadOcrClassSvmread_ocr_class_svm
可替代算子
do_ocr_single_class_svmdo_ocr_single_class_svmDoOcrSingleClassSvmDoOcrSingleClassSvmDoOcrSingleClassSvmdo_ocr_single_class_svm
参考其它
create_ocr_class_svmcreate_ocr_class_svmCreateOcrClassSvmCreateOcrClassSvmCreateOcrClassSvmcreate_ocr_class_svm,
classify_class_svmclassify_class_svmClassifyClassSvmClassifyClassSvmClassifyClassSvmclassify_class_svm
模块
OCR/OCV