ocr_change_char — Define a new conversion table for the characters.
ocr_change_char is obsolete and is only provided for
reasons of backward compatibility. New applications should use the
MLP, SVM or CNN based operators instead.
a new look-up table for the characters. Hereby the
number of strings of
Character must be the same as
of the classifier
In order to enlarge the font, the operator
ocr_change_char may be used as follows:
More characters than actually needed will be indicated when
creating a network using (
The last n characters will not be used so far.
If more characters are needed at a later stage, these unused
characters will be allocated and then trained with the help of the
This operator modifies the state of the following input parameter:
During execution of this operator, access to the value of this parameter must be synchronized if it is used across multiple threads.
OcrHandle(input_control, state is modified) ocr_box
ID of the OCR-network to be changed.
New assign of characters.
Default value: ['a','b','c']
If the number of characters in
Character is identical
with the number of the characters of the network, the operator
ocr_change_char returns the value 2 (H_MSG_TRUE).
Otherwise an exception will be raised.