I am using tess-two Tesseract Android Tools for my project. From the research I've done I found from here a way to limit the types of characters, but not the range of characters.
The Tess-Two library I am using doesn't have a tessdata/config file, so how can I limit the possible characters tesseract recognises?
How can I limit Tesseract to recognise a range of digits (20 to 30)?