Image Publisher doesn't work with ROS Image View

[jntlblv1]

• [x] I am at the right place and my issue is directly related to ROS#. General technical questions I would post e.g. at ROS Answers or Stack Overflow. For library-specific questions I would look for help in the corresponding library forums.
• [x] I have thoroughly read the Contributing Guideline and writing this issue is the right thing to do in my case.

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I have a question!

• [x] I searched the Wiki, open and closed issues for an answer. I tried my best to find the answer by myself without success. I believe that the discussion we will have in this issue, and the solutions we might find, will help me, and likely other community members who have a similar problem.

Here is my question: I'm using Image Publisher and it works partially. This is my case: first of all I'm using Image Subscriber in order to get a CompressedImage from ROS and it works. I publish the image on a Plane object and I add a simple cube. Then I want to see this scene in ROS (e.g. with rqt Image View). In order to do that I'm using Image Publisher. In ROS I can see the topic but when I try to see my scene with ImageView I can only see a grey screen.

I also tried to subscribe to the topic which i created with another Image Subcriber and I published the image on another plane and it works, so I think that the problem is in ROS.

Can you give me some advice? Thank you very much!

[MartinBischoff]

Hi @jntlblv1 Have you checked the hints suggested in closed issues related to image publishers & subscribers, eg. https://github.com/siemens/ros-sharp/issues/352 and referenced? The problem could be related to codecs used by Unity not available on your ROS system or image data de/-serialization in general. Save the message byte[] in a file, check in in Hex Editors, and image viewers, also on the machine running Unity.

[MartinBischoff]

outdated / closing due to inactivity