How to train seven segment display to Tessearct

Dear All, Some people have discussed Tesseract training for seven segment display. But I am not very clear how to train. I read http://code.google.com/p/tesseract-ocr/wiki/TrainingTesseract3. I learned that 20 samples is enough for training one digit. Is there any document discuss about training

Can't combine tessdata files for training due to new line in unicharambigs

*What steps will reproduce the problem?* 1. Prepared all necessary files for training 2. combine_tessdata ./lang. *What is the expected output? What do you see instead?* Combining tessdata files last_char == '\n':Error:Assert failed:in file tessdatamanager.cpp, line 91 Segmentation fault *What

Re: Can't combine tessdata files for training due to new line in unicharambigs

Post somewhere your files you try to combine. Zdenko On Fri, Jan 25, 2013 at 5:48 PM, Alp Oktem alpok...@gmail.com wrote: *What steps will reproduce the problem?* 1. Prepared all necessary files for training 2. combine_tessdata ./lang. *What is the expected output? What do you see