wiki.ros.org/camera_calibration/Tutorials/MonocularCalibration
rosdep install camera_calibration
rosmake camera_calibration
$ rosrun camera_calibration cameracalibrator.py --size 8x6 --square 0.108 image:=/camera/image_raw camera:=/usb_cam
注意,0.108是马克小黑格大小
打开相机的错误
[ WARN] [1524705751.615053287]: sh: 1: v4l2-ctl: not found
[ WARN] [1524705751.619038383]: sh: 1: v4l2-ctl: not found
解决
sudo apt-get install v4l-utils