Does anybody know any Fast/light Spell Check Algorithms or plugin for Matlab

Hello Everybody, I have never asked any questions here before. However,I am having a hard time finding a solution for this problem. I am at the last stage of developing an OCR machine.I am trying to find a fast/light algorithm that would do basic spell check correction for post processing. (e.g correcting 'difficu1','andnumericdigit','mGchine ').

 Does anybody know any easy way of using a plugin or implement a script to solve this last stage?