[image_view] is color correction still required?

[MyronRodrigues-StreetDrone]

I'm using ros humble and have the R and B colors flipped even though my image has correct encoding rgb8. The colors look right when seen from cv::imshow()

Color conversion on line 190 from branch humble in image_pipeline/image_view/src/image_view_node.cpp, is still required?

queued_image_.set(
  cv_bridge::cvtColorForDisplay(
    cv_bridge::toCvShare(msg), "bgr8", options));

[mikeferguson]

The real fix here is that we should be reading the encoding from the image message - and defaulting to bgr8 (the preferred) if no encoding is found - #850 fixes that