[link] convexityDefects

ENG:
http://w3facility.org/question/calculating-convexitydefects-using-opencv-2-4-in-c/

http://answers.opencv.org/question/2461/convexity-defects-in-opencv-242/

http://stackoverflow.com/questions/18401438/find-point-of-convexity-defects-in-opencv-c-function

http://www.codeproject.com/Questions/288557/Finger-tracking-counting-using-openCv-convexity-de


KOR:
http://talkingaboutme.tistory.com/320

http://ocllos.tistory.com/95