camera calibration file head_camera.yaml not found
Hello,
I'm trying to launch my USB camera, i typed : roslaunch cam-test.launch
so my camera is working but i had two warnings:
[ WARN ] : Camera calibration file /home/..../.ros/camera_info/head_camera.yaml not found
[ WARN ] : unknown control 'focus_auto'
Asked by samo on 2018-05-04 10:25:03 UTC
Answers
These are only warnings so you're camera node should be running okay and publishing images. Have you started RVIZ and tried to view the image topic?
The first warning is caused because you haven't calibrated the camera lens model and linked this into the launch file. If you're not estimating geometry from images then you will not need this anyway. If you need to calibrate the camera this is described here.
The second warning appears to state that your USB camera hardware doesn't support switching between auto and manual focus. I wouldn't worry about this one either.
Asked by PeteBlackerThe3rd on 2018-05-04 11:19:02 UTC
Comments
In my case, the camera image is displayed well although such two warnings happened as above.
Asked by bigbellmercy on 2019-09-25 16:27:55 UTC