.\"Shiju P. Nair September 30, 2004
.\"Thomas Weber <tweber@debian.org> April 23, 2014
.TH LINKICC 1 "September 30, 2004"
.SH NAME
linkicc - little cms device link generator.
.SH SYNOPSIS
.B linkicc
.RI [ options ] " profiles"
.SH DESCRIPTION
lcms is a standalone CMM engine, which deals with the color management.
It implements a fast transformation between ICC profiles.
.B linkicc
is a little cms device link generator.
.P
Links two or more profiles into a single devicelink profile.
Colorspaces must be paired except Lab/XYZ, that can be interchanged.
.SH OPTIONS
.TP
.BR \-a\  NUM
Observer adaptation state (abs.col. only), (0..1.0, float value) [defaults to 1.0].
.TP
.B \-b
Black point compensation.
.TP
.BI \-c\  precision
Precision (0=LowRes, 1=Normal, 2=Hi-res) [defaults to 1].
.TP
.BI \-d\  description
Description text (quotes can be used).
.TP
.BI \-h\  NUM
Show summary of options and examples (0=help, 1=Built-in profiles, 2=Examples, 3=Contact information)
.TP
.BI \-k\  inklimit
Ink-limiting in % (CMYK only), (0..400.0, float value) [default 400.0].
.TP
.B \-l
Use linearization curves (may affect accuracy).
.TP
.BI \-n\  gridpoints
Alternate way to set precision, number of CLUT points.
.TP
.BI \-o\  profile
Output devicelink profile [defaults to 'devicelink.icm'].
.TP
.BI \-r\  profileversion
Profile version. (CAUTION: may change the profile implementation), (2.0..4.3, float value) [defaults to 4.3].
.TP
.BI \-t\  NUM
Rendering intent
.nf
.RS
0=Perceptual [default]
1=Relative colorimetric
2=Saturation
3=Absolute colorimetric
10=Perceptual preserving black ink
11=Relative colorimetric preserving black ink
12=Saturation preserving black ink
13=Perceptual preserving black plane
14=Relative colorimetric preserving black plane
15=Saturation preserving black plane
.RE
.fi
.TP
.BI \-v\  verbosity
Verbosity level, (0=None, 1=Normal, 2=High, 3=Very High) [defaults to 0].
.TP
.B \-x
Creatively, guess deviceclass of resulting profile.
.TP
.BI \-y\  copyright
Copyright notice (quotes can be used) ["No copyright, use freely"].
.TP
.B \-8
Creates 8-bit devicelink.
.SH BUILT-IN PROFILES
.nf
	*Lab2  -- D50-based v2 CIEL*a*b
	*Lab4  -- D50-based v4 CIEL*a*b
	*Lab   -- D50-based v4 CIEL*a*b
	*XYZ   -- CIE XYZ (PCS)
	*sRGB  -- sRGB color space
	*Gray22 - Monochrome of Gamma 2.2
	*Gray30 - Monochrome of Gamma 3.0
	*null   - Monochrome black for all input
	*Lin2222- CMYK linearization of gamma 2.2 on each channel
.fi
.SH EXAMPLES
.nf
To create 'devicelink.icm' from a.icc to b.icc:
	linkicc a.icc b.icc

To create 'out.icc' from sRGB to cmyk.icc:
	linkicc -o out.icc *sRGB cmyk.icc

To create a sRGB input profile working in Lab:
	linkicc -x -o sRGBLab.icc *sRGB *Lab

To create a XYZ -> sRGB output profile:
	linkicc -x -o sRGBLab.icc *XYZ *sRGB

To create a abstract profile doing softproof for cmyk.icc:
	linkicc -t1 -x -o softproof.icc *Lab cmyk.icc cmyk.icc *Lab

To create a 'grayer' sRGB input profile:
	linkicc -x -o grayer.icc *sRGB gray.icc gray.icc *Lab

To embed ink limiting into a cmyk output profile:
	linkicc -x -o cmyklimited.icc -k 250 cmyk.icc *Lab

.fi
.SH NOTES
For suggestions, comments, bug reports etc. send mail to
info@littlecms.com.
.SH SEE ALSO
.BR jpgicc (1),
.BR psicc (1),
.BR tificc (1),
.BR transicc (1)
.SH AUTHOR
This manual page was written by Shiju p. Nair <shiju.p@gmail.com>,
for the Debian project.