What are the latest technique used in contrast enhancement to reduces the degraded images for text recognition?

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Ahmed Elazab

Dear Visalatchi,

Hope these will help

http://ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=4669965

http://ieeexplore.ieee.org/xpl/articleDetails.jsp?tp=&arnumber=7058267

http://web.stanford.edu/~hchen2/papers/ICIP2011_RobustTextDetection.pdf

Przemysław Skurowski

http://studiainformatica.polsl.pl/index.php/SI/article/view/103

sorry its in polish but figures and basics are easy to get