Llinux环境下编译并使用OpenCV
http://docs.opencv.org/2.4/doc/tutorials/introduction/linux_install/linux_install.html
http://stackoverflow.com/questions/28776053/opencv-gtk2-x-error
http://raspberrypi.stackexchange.com/questions/22864/how-to-install-libtbb-dev-in-raspberry-pi