a new method ''WangZhengHuLi2013'' is added
Merge branch 'master' of https://github.com/yunfuliu/pixkit
move WangZhengHuLi2013.cpp file to another folder
change the path of pixkit-image.hpp
Merge pull request #47 from JinYu-Syue/master

a new method ''WangZhengHuLi2013'' is added