grabcut

http://www.cs.ru.ac.za/research/g02m1682/

http://grabcut.weebly.com/code.html

http://www.cs.cmu.edu/~mohitg/segmentation.htm

https://mywebspace.wisc.edu/pwang6/personal/

http://hi.baidu.com/coolbox123/item/b40b46c0e466babf0c0a7b4c

http://blog.sina.com.cn/s/blog_40ec4cab0100p8qg.html