X Version 11 (Release 6.1)
xcmsdb(X1M)
xcmsdb --
Device Color Characterization utility for X Color Management
Synopsis
xcmsdb [-query] [-remove]
[-format (32 | 16 | 8)] [filename]
Description
xcmsdb
is used to load, query, or remove Device Color Characterization data
stored in properties on the root window of the screen as specified
in section 7, Device Color Characterization, of the ICCCM.
Device Color Characterization data (also called the Device Profile)
is an integral part of Xlib's X Color Management System (Xcms), necessary
for proper conversion of color specification between device-independent
and device-dependent forms.
xcms uses 3x3 matrices stored in the
XDCCC_LINEAR_RGB_MATRICES property to
convert color specifications between CIEXYZ and RGB
Intensity (XcmsRGBi, also referred to as linear RGB).
xcms then uses display gamma information stored in the
XDCCC_LINEAR_RGB_CORRECTION property to convert
color specifications between RGBi and RGB
device (XcmsRGB, also referred to as device RGB).
NOTE:
xcms allows clients to register ``function sets''
in addition to its
built-in function set for CRT color monitors. Additional function sets
may store their device profile information in other properties in function
set specific format.
This utility is unaware of these non-standard properties.
The ASCII contents of filename
(or the standard input if no input file is given)
are appropriately transformed for storage in properties, provided the
-query or -remove options are not specified.
Options
The xcmsdb program accepts the following options:
-query-
This option attempts to read the XDCCC properties off the
screen's Root window.
If successful, it transforms the data into a more readable format, then
sends the data to standard out.
-remove-
This option attempts to remove the XDCCC properties on the
screen's Root window.
-format (32 | 16 | 8)-
Specifies the property format (32, 16, or 8 bits per entry) for the
XDCCC_LINEAR_RGB_CORRECTION property.
Precision of encoded floating point values increases with the increase
in bits per entry.
The default is 32 bits per entry.
Environment variables
DISPLAY-
to figure out which display and screen to use
References
xprop(X1)
© 2004 The SCO Group, Inc. All rights reserved.
UnixWare 7 Release 7.1.4 - 25 April 2004