No output after starting my_publisher from the image_transport_tutorial pkg.

asked 2018-04-30 12:33:09 -0500

Becutan

1 ●1 ●2 ●2

updated 2018-04-30 13:37:03 -0500

gvdhoorn
86574 ●283 ●1432 ●1054 http://cor.tudelft.nl/

I'm following a tutorial image_transportTutorialsExaminingImagePublisherSubscriber and after command

rosrun image_transport_tutorial my_publisher path/to/some/image.jpg

nothing happens, no error or anything (of course I put correct path to my image)

answered 2018-04-30 13:34:05 -0500

gvdhoorn
86574 ●283 ●1432 ●1054 http://cor.tudelft.nl/

I'll assume it's wiki/image_transport/Tutorials/ExaminingImagePublisherSubscriber that you're referring to (please always include a link when referring to tutorials, guides or other online resources).

nothing happens, no error or anything

Can you tell us what you expect to happen?

The node created in that tutorial (my_publisher) should only publish the image you specify. It does not produce any terminal output, open windows or anything else.

Can the subscriber subscribe to the topic and display the message? If it can, it would seem things are working correctly.