[image_saver_node]: Unable to convert 8UC3 image to bgr8

[HaiCLi]

Hi guys,

I met this problem when I try to save the images from rosbag2 with timestamp. Did anyone knows how to solve it?

Thanks!

[HaiCLi]

"ros2 run image_view image_saver --encoding=8Uc3 --ros-args -r image:=/cam/video0 " the command I used

[mikeferguson]

It would appear to me that you are not passing the parameters correctly since it is still using the default "bgr8":

 ros2 run image_view image_saver --ros-args -p encoding:=8UC3 -r image:=/cam/video0

[HaiCLi]

It would appear to me that you are not passing the parameters correctly since it is still using the default "bgr8":

 ros2 run image_view image_saver --ros-args -p encoding:=8UC3 -r image:=/cam/video0

could you provide the correct one? I can not find it on RosWiki. Thanks!

[mikeferguson]

The command I posted would be the correct one - you move the parameter after --ros-args and add the -p as shown

[HaiCLi]

The command I posted would be the correct one - you move the parameter after --ros-args and add the -p as shown

Thanks for your reply! However, I found the results are lack of timestamps. I need this attribution for the use of sensor fusion with lidar. Do you have any suggestions? Thanks!