Check image dimensions match info_msg
Publish tweaks to config_ so they appear in reconfigure_gui
Could support odd offsets for Bayer images, but it's a tad complicated
Support 16-bit encodings
Faster to convert directly to mono when color is not requested, but OpenCV doesn't support
If no distortion, could just point to the colorized data. But copy is already way faster than remap.
Make these cmd-line args instead?
Test variety of encodings for raw image (bayer, mono, color)