Name
read_ocr_class_cnnread_ocr_class_cnnReadOcrClassCnnread_ocr_class_cnnReadOcrClassCnnReadOcrClassCnn — Read an CNN-based OCR classifier from a file.
read_ocr_class_cnnread_ocr_class_cnnReadOcrClassCnnread_ocr_class_cnnReadOcrClassCnnReadOcrClassCnn reads a pretrained OCR classifier based on a
convolutional neural network (CNN).
The CNN-based OCR classifier is read with read_ocr_class_cnnread_ocr_class_cnnReadOcrClassCnnread_ocr_class_cnnReadOcrClassCnnReadOcrClassCnn and
subsequently used for classification with either
do_ocr_single_class_cnndo_ocr_single_class_cnnDoOcrSingleClassCnndo_ocr_single_class_cnnDoOcrSingleClassCnnDoOcrSingleClassCnn, do_ocr_multi_class_cnndo_ocr_multi_class_cnnDoOcrMultiClassCnndo_ocr_multi_class_cnnDoOcrMultiClassCnnDoOcrMultiClassCnn, or
do_ocr_word_cnndo_ocr_word_cnnDoOcrWordCnndo_ocr_word_cnnDoOcrWordCnnDoOcrWordCnn.
HALCON provides a number of pretrained OCR classifiers (see Solution Guide
I, chapter 'OCR', section 'Pretrained OCR Fonts'). These pretrained OCR
classifiers make it possible to read a wide variety of different fonts
without the need to train an OCR classifier. Note that the pretrained OCR
classifiers were trained with symbols that are printed dark on light.
- Multithreading type: reentrant (runs in parallel with non-exclusive operators).
- Multithreading scope: global (may be called from any thread).
- Processed without parallelization.
This operator returns a handle. Note that the state of an instance of this handle type may be changed by specific operators even though the handle is used as an input parameter by those operators.
File name.
Default value:
'Universal_Rej.occ'
"Universal_Rej.occ"
"Universal_Rej.occ"
"Universal_Rej.occ"
"Universal_Rej.occ"
"Universal_Rej.occ"
Suggested values: 'Universal_NoRej.occ'"Universal_NoRej.occ""Universal_NoRej.occ""Universal_NoRej.occ""Universal_NoRej.occ""Universal_NoRej.occ", 'Universal_Rej.occ'"Universal_Rej.occ""Universal_Rej.occ""Universal_Rej.occ""Universal_Rej.occ""Universal_Rej.occ", 'Universal_0-9_NoRej.occ'"Universal_0-9_NoRej.occ""Universal_0-9_NoRej.occ""Universal_0-9_NoRej.occ""Universal_0-9_NoRej.occ""Universal_0-9_NoRej.occ", 'Universal_0-9_Rej.occ'"Universal_0-9_Rej.occ""Universal_0-9_Rej.occ""Universal_0-9_Rej.occ""Universal_0-9_Rej.occ""Universal_0-9_Rej.occ", 'Universal_0-9+_NoRej.occ'"Universal_0-9+_NoRej.occ""Universal_0-9+_NoRej.occ""Universal_0-9+_NoRej.occ""Universal_0-9+_NoRej.occ""Universal_0-9+_NoRej.occ", 'Universal_0-9+_Rej.occ'"Universal_0-9+_Rej.occ""Universal_0-9+_Rej.occ""Universal_0-9+_Rej.occ""Universal_0-9+_Rej.occ""Universal_0-9+_Rej.occ", 'Universal_0-9A-Z_NoRej.occ'"Universal_0-9A-Z_NoRej.occ""Universal_0-9A-Z_NoRej.occ""Universal_0-9A-Z_NoRej.occ""Universal_0-9A-Z_NoRej.occ""Universal_0-9A-Z_NoRej.occ", 'Universal_0-9A-Z_Rej.occ'"Universal_0-9A-Z_Rej.occ""Universal_0-9A-Z_Rej.occ""Universal_0-9A-Z_Rej.occ""Universal_0-9A-Z_Rej.occ""Universal_0-9A-Z_Rej.occ", 'Universal_0-9A-Z+_NoRej.occ'"Universal_0-9A-Z+_NoRej.occ""Universal_0-9A-Z+_NoRej.occ""Universal_0-9A-Z+_NoRej.occ""Universal_0-9A-Z+_NoRej.occ""Universal_0-9A-Z+_NoRej.occ", 'Universal_0-9A-Z+_Rej.occ'"Universal_0-9A-Z+_Rej.occ""Universal_0-9A-Z+_Rej.occ""Universal_0-9A-Z+_Rej.occ""Universal_0-9A-Z+_Rej.occ""Universal_0-9A-Z+_Rej.occ", 'Universal_A-Z+_NoRej.occ'"Universal_A-Z+_NoRej.occ""Universal_A-Z+_NoRej.occ""Universal_A-Z+_NoRej.occ""Universal_A-Z+_NoRej.occ""Universal_A-Z+_NoRej.occ", 'Universal_A-Z+_Rej.occ'"Universal_A-Z+_Rej.occ""Universal_A-Z+_Rej.occ""Universal_A-Z+_Rej.occ""Universal_A-Z+_Rej.occ""Universal_A-Z+_Rej.occ"
File extension: .occ, .fnt
Handle of the OCR classifier.
If the parameters are valid, the operator read_ocr_class_cnnread_ocr_class_cnnReadOcrClassCnnread_ocr_class_cnnReadOcrClassCnnReadOcrClassCnn
returns the value 2 (H_MSG_TRUE). If necessary, an exception is
raised.
do_ocr_single_class_cnndo_ocr_single_class_cnnDoOcrSingleClassCnndo_ocr_single_class_cnnDoOcrSingleClassCnnDoOcrSingleClassCnn,
do_ocr_multi_class_cnndo_ocr_multi_class_cnnDoOcrMultiClassCnndo_ocr_multi_class_cnnDoOcrMultiClassCnnDoOcrMultiClassCnn,
do_ocr_word_cnndo_ocr_word_cnnDoOcrWordCnndo_ocr_word_cnnDoOcrWordCnnDoOcrWordCnn
get_params_ocr_class_cnnget_params_ocr_class_cnnGetParamsOcrClassCnnget_params_ocr_class_cnnGetParamsOcrClassCnnGetParamsOcrClassCnn
OCR/OCV