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Create a subscriber to subscribe uvc_camera topic

asked 2020-04-11 09:55:54 -0500

N.N.Huy gravatar image

updated 2020-04-11 10:40:01 -0500

gvdhoorn gravatar image

Hello everyone, i am running uvc_camera package and there are several released topics such as:

/camera_info
/image_raw
/image_raw/compressed
/image_raw/compressed/parameter_descriptions
/image_raw/compressed/parameter_updates
/image_raw/compressedDepth
/image_raw/compressedDepth/parameter_descriptions
/image_raw/compressedDepth/parameter_updates
/image_raw/theora
/image_raw/theora/parameter_descriptions
/image_raw/theora/parameter_updates

My idea is creating a subscriber to subscribe the topic /image_raw above.

How can i do that ?

Thanks in advance!

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answered 2020-04-14 04:52:23 -0500

Good start is official ROS tutorial:

http://wiki.ros.org/image_transport/T...

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Thank you so much :) !

N.N.Huy gravatar image N.N.Huy  ( 2020-04-15 04:21:36 -0500 )edit

Hello sir, i am following the tutorial, but i meet this prob when running my image subscriber: "(view:19049): GLib-GObject-CRITICAL **: 22:58:39.962: g_object_unref: assertion 'G_IS_OBJECT (object)' failed Attempt to unlock mutex that was not locked Aborted (core dumped)" Can you help me to solve ?

N.N.Huy gravatar image N.N.Huy  ( 2020-04-25 11:02:53 -0500 )edit

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Asked: 2020-04-11 09:55:54 -0500

Seen: 40 times

Last updated: Apr 14 '20