Hi,

I've added a few lines to camera.cpp to set those fields in CameraInfo
if the camera has not been calibrated and to discard any calibrations
that have the wrong dimensions.

Is there any software that requires height and width to be defined for
an uncalibrated camera? camera_calibration/*.py worked for me with an
all-zeros CameraInfo, and I'm unable to find anything in the wiki that
clarifies the expected pre-calibration values for these fields.

 - Ken