ERROR: unknown command line flag

Hello,

I’m trying to execute the following command :

build\x64\Release\calibration.exe --num_gpu 0 --video examples/media/Camera_1.avi --write_images C:\Users\PAM\Desktop\calib_intrinsics

An error appears :

ERROR: unknown command line flag 'num_gpu'
ERROR: unknown command line flag 'video'
ERROR: unknown command line flag 'write_images'

Someone know what does it means and how can I fix it ?

Thank you,

Clara