Monocular camera calibration for Nao [closed]

edit

I followed the tutorial for camera_calibration package but after I get

opengl support available

nothing happens.

Here is the result of my rostopic list before running camera calibration:

/nao_camera/camera_info
/nao_camera/image_raw
/rosout
/rosout_agg

And I then run camera_calibration

rosrun camera_calibration cameracalibrator.py --size 8x6 --square 0.035 image:=/nao_camera/image_raw camera:=/nao_camera --no-service-check

Finally this is the program's output:

init done 
opengl support available

I checked if images were reaching /nao_camera/image_raw and it was the case.

So what is wrong?