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+.TH CRT-CALIBRATOR 1 CRT-CALIBRATOR
+.SH NAME
+crt-calibrator - CRT monitor calibrator utility for Linux VT
+.SH SYNOPSIS
+.BR crt-calibrator
+.RI [ FILE ]
+.SH DESCRIPTION
+.B crt-calibrator
+is an interactive tool that guides you through calibrating your
+CRT monitors. When done, the program will print gamma-ramp
+information that is useful when setting the calibrations
+automatically. If
+.B FILE
+is specified, this information is stored to that the file named
+.BR FILE .
+.PP
+The program cannot be run from inside
+.BR X ,
+it is required that it is run from the
+.BR Linux\ VT ,
+otherwise known as the TTY.
+.SH NOTES
+.B crt-calibrator
+should not be used to calibrate LCD (neither LED or TFT), plasma
+monitors, or OLED. It should only be used to calibrate monitors
+with nice gamma-curves, such as CRT monitors. Not monitors with
+sigmoid-curves.
+.SH RATIONALE
+Few users have calibration hardware, and CRT monitors can be
+sufficiently calibrated manually without them. However, before
+.B crt-calibrator
+the best way to calibrator CRT monitors was to have specialised
+test images, with colour bars and samples. But this requires
+expertise, the common user will know how to contruct these
+images or the best procedure for applying the corrections. And
+it is tedious if you do not find any interactive tool for change
+changing the settings. The alternative why was to use test
+pictures that relied on you deciding what looked most realistic
+rather than the image itself telling you. But that's not all,
+to my knowledge, this is actually the first program that runs
+outside a display server.
+.SH "SEE ALSO"
+.BR analyse-gamma (1),
+.BR blueshift (1)
+.SH AUTHORS
+Principal author, Mattias Andrée. See the COPYING file for the full
+list of authors.
+.SH LICENSE
+Copyright \(co 2014  Mattias Andrée
+.br
+License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
+.br
+This is free software: you are free to change and redistribute it.
+.br
+There is NO WARRANTY, to the extent permitted by law.
+.SH BUGS
+Please report bugs to https://github.com/maandree/crt-calibrator/issues
+or to maandree@member.fsf.org