Extracting text from .png images

[Skip Montanaro]

    John> OCR is the TLA you're looking for ("Optical Character Recognition").

    John> Dunno if there are any good free OCR engines.  With these sorts of
    John> hard algorithms, you tend to get what you pay for.

Which often means there's a piece of free software out there which works
better than the most expensive commercial solutions. <wink>

A little googling suggests this might be a candidate:

    http://www.claraocr.org/

I have no idea if there's an exported library and/or a Python wrapper, but
it's probably worth a look.

Skip