[ros-users] [Discourse.ros.org] [General] ROS1 + OpenCV

[Chris]

[quote="tyagikunal, post:1, topic:5207"]

Is OpenCV3 bundled with ROS (I remember it was distributed separately)?

[/quote]



In Melodic, we decided go with OpenCV 3.2.  Since that is available from the system on Ubuntu 18.04, we didn't have to build it ourselves and we just use the system version.



[quote="tyagikunal, post:1, topic:5207"]

If no (which I assume is the case), are there any plans to do so in the future?

[/quote]



Not unless there is a very compelling reason to do so.  In past releases when ROS bundled OpenCV itself, it led to a lot of problems and a lot of churn.  Thus, we are going to try to stick with the system version of OpenCV for Melodic to avoid these problems.



[quote="tyagikunal, post:1, topic:5207"]

Im asking because of [issue#201 of image_pipeline ](https://github.com/ros-perception/image_pipeline/issues/201) and @roehlings comment. Using `image_saver` is not fun anymore :sweat_smile: Also, is anyone aware of what OpenCV communitys response is wrt their handling of GTK?

[/quote]



It's probably worth reaching out to the OpenCV and/or GTK community to see what the current situation, since the original bug in GTK seems to have been fixed 3 years ago.  There is clearly something else going on.  Unfortunately I don't personally have much knowledge of either of those communities (or of the software).



Barring that, it may be worthwhile to go with the workaround you described in the above bug.



Hope that helps.











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