Unable to view camera output while using cv_bridge
I am using ROS Hydro in Ubuntu 12.04 which is installed in Virtualbox. I am trying to use cv_bridge to convert my ros images to opencv images captured by Logitech C270.
Being a novice to this field, I am following the tutorial explained on this blog : link .
All works fine but still I am not able to see the camera output, rather the complete output screen appears green.
Same is the case while following the ROS tutorial, given on the link : link
Guys I am in need of help...please help me...!!!
some more or better info, like, what commands are you running to see an image? can you normaly see the image?etc. etc.
Firstly thanks for your reply. Yes sure. Initially I am using the command - roslaunch uvcCameraLaunch.launch ... this works fine and my camera gets light up. After that i am running the command - rosrun image_view image_view image:=/camera/image_raw.. this pops up a window named /camera/image_raw
This window /camera/image_raw has the screen which is completely green rather than seeing the display of camera.
check with "rostopic list" after uvcCameraLaunch.launch which image topics also exist and try another with "rosrun image_viewer..."
else could you see with a simply webcam app a normal picture or also a green one ?
Yes i am able to view properly the webcam output with webcam app. The output of rostopic list is: /camera/camera_info
/camera/image_raw
/rosout
/rosout_agg
the page http://wiki.ros.org/uvc_camera says that one should use http://wiki.ros.org/libuvc_camera , tried that?
OH thank you very much for giving me an idea that there might be some issue with package. The uvc_camera package was having some problem. So i used the package usb_cam and it worked.