安装Tesseract
http://blog.csdn.net/hiredme/article/details/50894814 http://blog.csdn.net/yoara/article/details/42392659 http://blog.csdn.net/StruggleRookie/article/details/71606540?locationNum=15&fps=1 http://blog.csdn.net/diandianxiyu_geek/article/details/50522582 http://blog.csdn.net/zhuxu820_/article/details/45269239
Tesseract已开源：https://github.com/tesseract-ocr
http://blog.csdn.net/yimingsilence/article/details/51353772