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@stefan

I faced the following problem when trying to run the StereoCalibration. It seems the calibration only accept color images.

kuxz@kuxz-UX32LN:~$ rosrun camera_calibration cameracalibrator.py --size 9x6 --square 0.108 image:=/camera/ir2/image_raw camera:=/camera/ir2 --no-service-check
Exception in thread Thread-5:
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 801, in __bootstrap_inner
    self.run()
  File "/opt/ros/kinetic/lib/camera_calibration/cameracalibrator.py", line 93, in run
    self.function(self.queue[0])
  File "/opt/ros/kinetic/lib/camera_calibration/cameracalibrator.py", line 167, in handle_monocular
    drawable = self.c.handle_msg(msg)
  File "/opt/ros/kinetic/lib/python2.7/dist-packages/camera_calibration/calibrator.py", line 719, in handle_msg
    gray = self.mkgray(msg)
  File "/opt/ros/kinetic/lib/python2.7/dist-packages/camera_calibration/calibrator.py", line 256, in mkgray
    return self.br.imgmsg_to_cv2(msg, "mono8")
  File "/opt/ros/kinetic/lib/python2.7/dist-packages/cv_bridge/core.py", line 184, in imgmsg_to_cv2
    raise CvBridgeError(e)
CvBridgeError: [8UC1] is not a color format. but [mono8] is. The conversion does not make sense

init done
^CQObject::~QObject: Timers cannot be stopped from another thread
kuxz@kuxz-UX32LN:~$

Is there any parameters that I can edit to enable the calibration of the IR camera?