Introduction - If you have any usage issues, please Google them yourself
Very good calibration exe program (especially for beginners and can personally doing the experiment) functions: 1 can be internal and external parameters calibration. 2 and a checker-board images can be printed, for beginners can be convenient to do experiments. 3 with good pictures can be directly used. 4 and the readme instructions, though the program is simple to operate.
I hope I can help you with your study!