how to detect letters drawn on screen using touch
I realize this is a general question, but I'm not looking for a code just what's the logic behind detecting such "complex" gestures if you will and what algorithms are mainly used? are they detected directly as I write or converted to a medium like "a line" which is then processed into text?
Comment
$$anonymous$$aking this from scratch, I think the "easiest" way would be to write some type of AI. You could convert drawn lines of a letter to a bitmap (also select only the relevant part) and use as the input for the AI. Then $$anonymous$$ch it with examples and test it until its success ratio is good enough for use.