Calibration Pattern Size Please choose the width and height (number of inside corners) of the checker board pattern you will be using for calibration. Default is 6 by 8 corners. You may find a checkerboard pattern at http://opencv.willowgarage.com/pattern http://opencv.willowgarage.com/pattern /opencv/camera.yml /opencv Calibration calculations have started... Calibration calculations has stopped. Calibration finished, you camera is calibrated. Calibration Please capture atleast 3 - preferably greater than 10 - images of the pattern! Please make sure that you\'re sdcard is not mounted to you\'re computer, and that you have an sdcard that is writable on your device.