ocr

http://www.openhw.org/winter1988/blog/13-03/292209_03d5b.html

http://ykf.iteye.com/blog/212431

http://www.cnblogs.com/GYoungBean/archive/2013/05/09/3069180.html

http://my.oschina.net/zhouxiang/blog/161619

http://www.07net01.com/program/152979.html

http://tess4j.sourceforge.net/usage.html

http://my.oschina.net/iceman/blog/40771