How to see the showed OpenCV images

Hi i’m doing the first lesson of the course and when in the launch file I write <arg name="show_images" default="True" />It does not display anything. In the graphical tool i see this

It seems it is not plotting correctly, or am I doing anything wrong?

Hi,

No, you did it correctly, it seems its a bug, that might be related to the speed in which we are showing the images or new updates. Its not vital because al the material is generated and saved, its more of a convenient feature.

We will try to look into it

Solved it by adding the command before launch: export QT_X11_NO_MITSHM=1