trainf_ocr_class_box ( : : OcrHandle, FileName : AvgConfidence )

Train an OCR classifier with the help of a training file.

The operator trainf_ocr_class_box trains the classifier OcrHandle via the indicated training files. Any number of files can be indicated. The parameter AvgConfidence provides information about the success of the training: It contains the average confidence of the trained characters measured by a re-classification. The confidence of mismatched characters is set to 0 (thus, the average confidence will be decreased significantly).


Attention

The names of the characters in the file must fit the network.


Parameters

OcrHandle (input_control)
ocr -> integer
ID of the desired OCR-network.

FileName (input_control)
filename(-array) -> string
Name(s) of the training file(s).
Default value: ''train_ocr''

AvgConfidence (output_control)
real -> real
Average confidence during a re-classification of the trained characters.


Result

If the file name is correct and the data fit the network, the operator trainf_ocr_class_box returns the value 2 (H_MSG_TRUE). Otherwise an exception will be raised.


Parallelization Information

trainf_ocr_class_box is processed completely exclusively without parallelization.


Possible Predecessors

create_ocr_class_box, read_ocr


Possible Successors

traind_ocr_class_box, write_ocr, do_ocr_multi, do_ocr_single


Alternatives

traind_ocr_class_box


Module

Optical character recognition



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