Confusion about deeplabcut.check_undistortion() output

I am trying to calibrate my cameras and got the following output from this function. I am unsure about what the x and y axes are and whether or not this calibration was successful. I found images posted online of the output another user got from deeplabcut.check_undistortion(), and the scales of the units in the axes were much lower, so I am a bit concerned. All of the images in the undistortion dir were black, but I read that this may not necessarily be a problem.

Any help is much appreciated! :thinking: :thinking: