/usr/bin/opencv_interactive-calibration

hwloc/linux: failed to find sysfs cpu topology directory, aborting linux discovery.
Usage: opencv_interactive-calibration [params]

	--ad (value:DICT_4X4_50)
		Name of predefined ArUco dictionary. Available ArUco dictionaries: DICT_4X4_50, DICT_4X4_100, DICT_4X4_250, DICT_4X4_1000, DICT_5X5_50, DICT_5X5_100, DICT_5X5_250, DICT_5X5_1000, DICT_6X6_50, DICT_6X6_100, DICT_6X6_250, DICT_6X6_1000, DICT_7X7_50, DICT_7X7_100, DICT_7X7_250, DICT_7X7_1000, DICT_ARUCO_ORIGINAL, DICT_APRILTAG_16h5, DICT_APRILTAG_25h9, DICT_APRILTAG_36h10, DICT_APRILTAG_36h11, DICT_ARUCO_MIP_36h12
	--ci (value:0)
		Camera id
	-d (value:0.8)
		Min delay between captures
	--dst (value:295)
		Distance between white and black parts of daulCircles template
	--fad (value:None)
		name of file with ArUco dictionary
	--flip (value:false)
		Vertical flip of input frames
	--force_reopen (value:false)
		Forcefully reopen camera in case of errors
	--ft (value:true)
		Auto tuning of calibration flags
	-h
		Height of template (in corners or circles)
	--help (value:true)
		Print help
	--of (value:cameraParameters.xml)
		Output file name
	--pf (value:defaultConfig.xml)
		Advanced application parameters
	--save_frames (value:false)
		Save frames that contribute to final calibration
	--sz (value:16.3)
		Distance between two nearest centers of circles or squares on calibration board
	-t (value:circles)
		Template for calibration (circles, chessboard, dualCircles, charuco, symcircles)
	-v
		Input from video file
	--vb
		Video I/O back-end. One of: FFMPEG, GSTREAMER, INTEL_MFX, V4L2, FFMPEG, CV_IMAGES, CV_MJPEG, UEYE, OBSENSOR
	--vis (value:grid)
		Captured boards visualisation (grid, window)
	-w
		Width of template (in corners or circles)
	--zoom (value:1)
		Zoom factor applied to the preview image