1XCMSDB(1) General Commands Manual XCMSDB(1)
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6 xcmsdb - Device Color Characterization utility for X Color Management
7 System
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10 xcmsdb [ -query ] [ -remove ] [ -format 32|16|8 ] [ filename ]
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13 xcmsdb is used to load, query, or remove Device Color Characterization
14 data stored in properties on the root window of the screen as specified
15 in section 7, Device Color Characterization, of the ICCCM. Device
16 Color Characterization data (also called the Device Profile) is an
17 integral part of Xlib's X Color Management System (Xcms), necessary for
18 proper conversion of color specification between device-independent and
19 device-dependent forms. Xcms uses 3x3 matrices stored in the
20 XDCCC_LINEAR_RGB_MATRICES property to convert color specifications
21 between CIEXYZ and RGB Intensity (XcmsRGBi, also referred to as linear
22 RGB). Xcms then uses display gamma information stored in the
23 XDCCC_LINEAR_RGB_CORRECTION property to convert color specifications
24 between RGBi and RGB device (XcmsRGB, also referred to as device RGB).
25 Note that Xcms allows clients to register function sets in addition to
27 its built-in function set for CRT color monitors. Additional function
28 sets may store their device profile information in other properties in
29 function set specific format. This utility is unaware of these non-
30 standard properties.
31 The ASCII readable contents of filename (or the standard input if no
33 input file is given) are appropriately transformed for storage in prop‐
34 erties, provided the -query or -remove options are not specified.
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37 xcmsdb program accepts the following options:
38 -query This option attempts to read the XDCCC properties off the
40 screen's root window. If successful, it transforms the data
41 into a more readable format, then sends the data to standard
42 out.
43 -remove This option attempts to remove the XDCCC properties on the
45 screen's root window.
46 -format 32|16|8
48 Specifies the property format (32, 16, or 8 bits per entry) for
49 the XDCCC_LINEAR_RGB_CORRECTION property. Precision of encoded
50 floating point values increases with the increase in bits per
51 entry. The default is 32 bits per entry.
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54 xprop(1), Xlib documentation
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57 DISPLAY to figure out which display and screen to use.
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60 Chuck Adams, Tektronix Inc. Al Tabayoyon, SynChromatics Inc. (added
61 multi-visual support)
62X Version 11 xcmsdb 1.0.1 XCMSDB(1)