ArgyllCMS documentation index (V1.9.2)
    
    Date:   17th October 2016
    Author: Graeme Gill
    Introduction
    ArgyllCMS is an ICC compatible color management system, available as
    Open Source. It supports accurate ICC profile creation for scanners,
    cameras and film recorders, and calibration and profiling of
    displays and RGB, CMY & CMYK printers. Device Link can be
    created with a wide variety of advanced options, including
    specialized Video calibration standards  and 3dLuts. Spectral
    sample data is supported, allowing a selection of illuminants
    observer types, and paper fluorescent whitener additive
    compensation. Profiles can also incorporate source specific gamut
    mappings for perceptual and saturation intents. Gamut mapping and
    profile linking uses the CIECAM02 appearance model, a unique gamut
    mapping algorithm, and a wide selection of rendering intents. It
    also includes code for the fastest portable 8 bit raster color
    conversion engine available anywhere, as well as support for fast,
    fully accurate 16 bit conversion. Device color gamuts can also be
    viewed and compared with a modern Web browser using X3DOM .
    Comprehensive documentation is provided for each major tool, and a
    general guide to using the tools for typical color management tasks
    is also available. A mailing list provides support for more advanced
    usage.
    This is Version 1.9.2, a bug fix update to the last
      releaseV1.9.1. The first public release of icclib was in November
      1998, and of ArgyllCMS was in October 2000. Code development
      commenced in 1995. See Changes
        Summary for an overview of changes since the last release.
      Changes between revisions is detailed in the log.txt file
      that accompanies the source code. 
    The latest source code is available from here.
    
    Please
          note that instruments are being driven by ArgyllCMS drivers,
          and that any problems or queries regarding instrument
          operation should
          first be directed to the Argyll's author(s) or the Argyll
          mailing list, and not to any other party. 
     
    
    A great introduction for non technical people is Steve Upton's The
        Color of Toast.
    
    I present here a more technical but concise
      discussion of what color management is, and why we need it,
    together with a brief overview of the ICC profile format.
    
    Operating Environments
     
    Argyll is known to compile and run in at least the following
      environments: 
    1) MSWindows XP system using Microsoft VC++ 6.0 compiler
    2) MSWindows XP system using Microsoft VC++ 8.0 Express compiler +
    Platform SDK Feb. 2003
    3) MSWindows XP system using Microsoft VC++ 9.0 Express compiler +
    Platform SDK Feb. 2003
    4) MSWindows XP system using Microsoft VC++ 10.0 Express compiler +
    Platform SDK Feb. 2003
    5) MSWindows XP system using Microsoft VC++ 11.0 Express compiler
    6) MSWindows XP system using the MingW port of the GCC compiler
    7) Linux on Fedora Core 8, 32 bit using gcc 
    8) Linux on Fedora Core 8, 64 bit using gcc
    9) Apple OS X 10.3 PPC using GCC
    10) Apple OS X 10.4, 10.5, 10.6 Intel using GCC
    11) Apple OS X10.7 Intel using  Clang
    
    Additionally it is also known to run on:
    
     MSWindows 2000, Vista & Windows 7 - 32 bit.
     MSWindows Vista 64bit, Windows 7, 8, 8.1, 10 - 64 bit.
    but may well compile and run correctly in many more than this,
      including OS X 10.8, 10.9, 10.10 and beyond.
    
    This is a command line terminal
    only environment. Those unfamiliar with command line environments
    should consult an appropriate tutorial for their environment if they
    are interested in using this software. See the listing of tutorials below.
    
    The following color measuring instruments are directly supported:
    
    JETI:
    
        specbos 1211
      & 1201                   
    - Tele-Spectro-Radiometer
        spectraval
      1511& 1501               
       - Tele-Spectro-Radiometer
    
    Image Engineering:
    
        EX1                                              
    - Tele-Spectro-Radiometer
    
    Klein:
    
        K10-A  
               
               
               
        - Display Colorimeter. Reported also to work with
    the K-1, K-8 and  K-10.
    
    X-Rite:
        DTP20 "Pulse" 
                           
    - "swipe" type reflective spectrometer, that can be used untethered.
        DTP22 Digital
      Swatchbook           
    - spot type reflective spectrometer.
        DTP41                                        
    - spot and strip reading reflective spectrometer.
        DTP41T
                    
                        
    - spot and strip reading reflective/transmissive spectrometer.
        DTP51                                        
    - strip reading reflective colorimeter.
        DTP92                                        
    - CRT display colorimeter.
        DTP94 "Optix XR" or "Optix XR2" or "Optix Pro"- display
    colorimeter.
        ColorMunki Design
    or Photo           -
    spot and "swipe" reflective/emissive spectrometer (UV cut only).
        ColorMunki Create
    or Smile  
             - display
    colorimeter. (Similar to an Eye-One Display 2)
        Lenovo W
                     
                      -
    built in laptop Huey display colorimeter.
        Eye-One Display
      3                
            - Xrite i1 DisplayPro and ColorMunki
    Display 
               
               
               
               
              [ The OEM
    i1Display Pro, NEC SpectraSensor Pro,
                     
                     
                     
           Quato Silver Haze 3 OEM and HP
    DreamColor  i1d3 are also reported to work.]
        Eye-One Pro2
                     
                 - spot and
    "swipe" reflective/emissive spectrometer.
    
    Gretag-Macbeth (now X-Rite):
        Spectrolino  
                     
                  - spot
    reflective/emissive spectrometer.
        SpectroScan  
                     
                - spot
    reflective/emissive, XY table reflective spectrometer  .
        SpectroScanT  
                     
              - spot
    reflective/emissive/transmissive, XY table reflective spectrometer.
        Eye-One Pro "EFI
    ES-1000"           - spot and "swipe"
    reflective/emissive spectrometer.
        Eye-One Monitor
                     
            - spot and "swipe" emissive
    spectrometer.
        Eye-One Display 1
      or 2  or LT        -
    display colorimeter.
        HP DreamColor or
      APS 
                   
    - display colorimeter. (Treated as a Eye-One Display 2)
        CalMAN X2
                                    
    - display colorimeter. (Treated as a Eye-One Display 2)
        Huey  
                     
                   
           - display colorimeter.
    
    Sequel imaging (Now X-Rite):
         MonacoOPTIX
                     
              - display
    colorimeter (Treated as an Eye-One Display 1)
                                                              
    [The Sequel Chroma 4 & 5, and Sencore ColorPro V, IV & III
    also work.]
    
    Lacie Blue
    Eye:                                 
    - see Eye-One Display
    
    DataColor ColorVision:
         Spyder 2
                      
              
           - display colorimeter (Note
    that the user must supply firmware)
                                                             
    [The Spyder 1 has also been reported as working, but this has not
    been confirmed.]
         Spyder 3
                      
              
           - display colorimeter.
         Spyder 4
                      
              
           - display colorimeter (Note
    that the user must supply calibration
    data)
         Spyder 5
                      
              
           - display colorimeter (Note
    that the user must supply calibration
    data)
    
    Other:
        Colorimètre HCFR                        
      - display colorimeter
        ColorHug
    and
    ColorHug2            
    - display colorimeter
        Palette/SwatchMate
      Cube              
    - reflective colorimeter
    
      See Operation of particular
      instruments for more instrument specific detail.
    
    Other instruments can be supported indirectly, since patch result
    files created by other packages can be imported into Argyll.
    
    Please note the installation instructions
    for each platform - they contain important information for getting
    your instruments working.
    If you've decided to buy a color instrument because Argyll
      supports it, please let the dealer and manufacturer know that "You bought it because ArgyllCMS
        supports it" - thanks.
    
    Please note that instruments are
        being driven by ArgyllCMS drivers, and that any problems or
        queries regarding instrument
        operation should be
        directed to the Argyll's author(s) or the Argyll mailing list,
        and not to any other
        party. 
    There is a list of contributed ccmx (Colorimeter Correction
      Matrix) files for some display/colorimeter combinations.
    Copyright, Licensing & Trade Mark:
    
    Most of the source code and provided executable files are
      copyrighted works, licensed under the Affero GNU Version 3 license, and therefore they
      (or works derived from them) can't be copied, sold or made
      available to users interacting with them remotely through a
      computer network, without providing the source code. Nothing other
      than your agreement and compliance with the Affero GNU License
      grants you permission to use, modify or distribute ArgyllCMS
      source code, executables or its derivative works. You could be
      sued for copyright infringement if you use or distribute ArgyllCMS
      without a valid license. The Affero
        GNU license prohibits
      extending these tools
      (i.e. by combining them with other programs or scripts that make
      use of, depend on, or work with the ArgyllCMS code) and
      distributing them, unless all the elements of the extensions are
      also made available under a GPL compatible license. It is
      permissible to provide ArgyllCMS tools with other non GPL
      components if the elements of the package are not related, such
      that the packaging is mere aggregation. For all the gory details,
      please read the accompanying license. 
    Note that unlike many commercial ICC profiling tools, the profiles
    created using ArgyllCMS, are not subject to any claims or
    restrictions of ArgyllCMS's author(s), but are assumed to be the
    copyright property of the person who gathers the characterization
    data, and causes the profiles to be created.
    The ArgyllCMS is Copyright 1995 - 2016 Graeme W. Gill, and is
      made available under the terms of the Affero GNU General Public
      License Version 3, as detailed in the License.txt
      file. Documentation is licensed under the terms of the GNU Free
      Documentation License, Version 1.3. The author asserts his moral
      rights over this material in relationship to the attribution and
      integrity of these works. In particular, if these works are
      modified in a way that materially changes their functionality,
      then the modified works should be renamed in a way that clearly
      distinguishes them from "Argyll" or "ArgyllCMS" so that the
      effects of such changes do not reflect on the original works
      integrity or the original authors reputation.
      A subset of files (those that are related to the color instrument
      drivers, and are collected together into the instlib.zip archive
      by the spectro/instlib.ksh script + xicc/ccmx.h and xicc/ccmx.c)
      are licensed under the General Public License Version 2 or later,
      as detailed in the License2.txt file.
    
    Portions of the ColorHug instrument library
      (spectro/colorhug.[ch]) are Copyright 2011, Richard Hughes, and is
      licensed under the General Public License Version 2 or later, as
      detailed in the License2.txt file.
    The tool spectro/spec2cie.c is Copyright 2005 Gerhard Fuernkranz,
      and is made available under the terms of the GNU General Public
      License Version 2 or later, and is licensed here under the Version
      3 license, as detailed in the License3.txt
      file.
    
    The Win32 USB library libusb-win32 kernel drivers are included in
      this distribution in the usb/driver and usb/bin directories, and
      are copyright Stephan Meyer and Travis Robinson, and are licensed
      under the GNU Version 2 or later (the drivers, services,
      installer). See  usb/driver/License.txt,
      libusbw/COPYING_LGPL.txt and libusbw/COPYING_GPL.txt for details.
      Additional terms noted on the website
      are "This license combination explicitly allows the use of this
      library in commercial, non-Open-Source applications."
    
    The icc library in icc/,
      the CGATS library in cgats/,
      the jcnf library in jcnf/,
      the files spectro/xdg_bds.*,
      spectro/aglob.* and the
      ucmm library in ucmm/ are
      Copyright 1995 - 2015 Graeme W. Gill, and available according to
      the "MIT" permissive free software license granted in the License4.txt file, and the licenses at
      the top of ucmm/ucmm.c and jcnf/jcnf.c.
    
    The yajl library in yajl/
      is Copyright (c) 2007-2014, Lloyd Hilaiel <me@lloyd.io> and
      is used under an ISC permissive free software license granted in
      the yajl/COPYING files. The yajl library has been repackaged and
      modified slightly to adds some features and for packaging and
      build convenience.
    
     The TIFF library included in this distribution for convenience,
      has its own copyright and license detailed in tiff/COPYRIGHT (an
      "MIT"/"BSD" like permissive free software license).
    
    The Independent JPEG Group's JPEG library included in this
      distribution for convenience, has its own copyright and license
      detailed in jpg/README (an "MIT"/"BSD" like permissive free
      software license). Executables that include JPEG format support
      are based in part on the work of the Independent JPEG Group. 
    xicc/iccjpeg.h and xicc/iccjpeg.c are from lcms and they are Copyright
      (c) 1998-2010 Marti Maria Saguer and is licensed under an
      "MIT"/"BSD" like permissive free software license. See the top of
      the iccjpeg.c file for the detailed copyright and licensing
      conditions.
    
    The mongoose web server software is Copyright (c) 2004-2011
      Sergey Lyubka, and is licensed under an "MIT" permissive free
      software license.
    
    The axTLS library is Copyright (c) 2008, Cameron Rich, and the
      license is detailed in ccast/axTLS/LICENSE file (an "MIT"/"BSD"
      like permissive free software license).
      It is not used for any security sensitive purpose, but is used
      purely to communicate with the ChromeCast.
    
    The X3DOM x3dom.css and
      x3dom.js files are Copyright (C) 2009 X3DOM and licensed dual
      "MIT" permissive free software and "GPL" license. See
      plot/X3DOM_LICENSE.txt.
    
    "ArgyllCMS" is a trade mark. It is permissible to refer to
      copies or derivatives of this software as being the same as
      ArgyllCMS if they are materially  unchanged, and retain all
      the functionality provided by the software made available at
      www.argyllcms.com. Modified versions of this software that are
      materially changed or have missing functionality must be clearly
      marked as such, so as not to to be confused with ArgyllCMS.
    
    What sort of project is this ? (re:
        contributions)
      
    This is essentially my private project, that I've made available
    under GNU licensing conditions. Because I license my code under
    other licenses as well, there is a limit to what I will accept in
    the way of code contributions back into this project. For me to
    accept contributions into the distribution, it either has to a
    non-core (side) project, or has to be offered to me with copyright
    conditions that are compatible with my other uses (i.e.. a "BSD" or
    "MIT"  like permissive free software license, or assigning or
    licensing the copyright to me), or has to be so trivial (say a one
    line bug fix), that it can't be the subject of copyright. 
    
    Of course there is nothing to stop someone setting up a real free
    software, community project based on the GNU licensed code made
    available here, that would be able to take GNU licensed
    contributions from everyone and would essentially be a "fork" of
    this code base.
    
    How to build the software from the
    source if you want to.
    Note that you don't need to
    do this if you are using one of the binary installations.
    
    Important notes on installing the binary
      software on various platforms.
    
    Graphic
          User Interfaces
        
    ArgyllCMS does not directly support a graphic user interface, but
    several people have written GUI
    based front ends for it. A popular front
end
that
supports
display
calibration
    and profiling is DisplayCAL by
    Florian Höch. For print profiling, you might like to take a look at
    The
      Little Argyll GUI by Russell Cottrell, and for cameras or
    scanners, CoCa by
    Andrew Stawowczyk Long.
    
    Others can be found with a suitable search.
    Main
        Tools and the command line
      
    These are all command line ("DOS" shell) tools, and each tool
    require appropriate options to be set, followed by filename
    arguments. Sometimes the filenames will have to include the usual
    extensions, sometimes they are implicit. To get a brief listing of
    the possible arguments and usage
    of any of the tools, run it with just an "-?" argument, i.e. targen
      -? (or some other unrecognized flag, if the "?" character is
    treated specially in your shell, i.e. try "--" on OS X zsh).
    
    Note that in general the arguments consist of possible flags or
    options followed by file path+name arguments. All arguments need to
    be separated by whitespace.  (If you need to specify a string
    with embedded white space, double quote the string). A flag consists
    of a dash attached to a single letter, the letter identifying the
    flag, and is usually case sensitive. An option is a flag that has an
    associated parameter or parameters. The parameter can be separated
    from the flag by white space, or may come directly after the flag.
    So if a tool has a usage that looks like this:
    
      tool -?
      usage: tool [options] infile outfile
      
    -v                  
    Verbose mode
       -d
    n               
    Choose a depth 0-4
       -r
                     
    Use a random depth
       -f
    [nn]           
    Use full range. nn optional range 0 - 100.
       -M
                    
    Manual
       infile
                  
    Input file
       outfile
               
    Output file
    
    then there are  5 flags/options, and two filename arguments.
    Notice that square braces [] denote optional items. The first
    flag/option is a flag. The second is an option that has a numerical
    argument in the range 0 to 4. The third is a flag. the fourth is an
    option with an optional argument. The fourth is a flag.  The
    flags and options can generally be in any order, but must be before
    the file name arguments. (For a few special tools you actually
    specify a sequence of flags and files where the flags apply just to
    the following file.) So example invocations may look like:
    
      tool -v testin testout
      tool -d3 -M testin1 testout2
      tool -f infile outfile
      tool -f 45 infile outfile
      tool -d 3 -f67 infile outfile
    In order to make use of the tools, it is necessary to keep track
      of where various files are, and what they are called. There are
      many possible ways of doing this. One way is to put each source
      profile and all its associated files (test charts, spectrometer
      values etc.) in one set of directories for each source profile
      type. Similarly the device profiles could be stored in a hierarchy
      of directories ordered by device type, media, resolution, device
      mode etc. Naturally you will want to set your $PATH so that you
      can run the tools from whichever directory you are in, as well as
      specify any necessary directory paths for file arguments so that
      the tools are able to open them.
    
    Note that there are two ways the Argyll tools deal with filename
      extensions. In one you supply the extension (ie. you supply the
      whole file name), so the extension is up to you. In the other
      (used where one name is used for input and output files, or where
      there are multiple output files), the program adds the extension.
      In the documentation this should be indicated by calling it a
      "base name".
    
    For more information on using a command
      line environments, consult an appropriate tutorial:
    MS Windows :
         <http://www.bleepingcomputer.com/tutorials/tutorial76.html>
         <http://www.pcstats.com/articleview.cfm?articleid=1723&page=1>
         <http://www.voidspace.org.uk/python/articles/command_line.shtml>
      
          To find more: <http://www.google.com/search?hl=en&q=windows+command+prompt+tutorial>
      
      OS X:
          <http://www.osxfaq.com/Tutorials/LearningCenter/>
          <http://www.atomiclearning.com/macosxterminalx.shtml>
          <http://www.oreillynet.com/pub/a/mac/2001/12/14/terminal_one.html>
      
          To find more: <http://www.google.com/search?hl=en&q=OS+X+shell+tutorial>
      
      Linux:
          <http://www.linuxcommand.org/index.php>
          <http://www.tuxfiles.org/linuxhelp/shell.html>
          <http://www.ee.surrey.ac.uk/Teaching/Unix/>
      
          To find more: <http://www.google.com/search?q=linux+command+line+shell+tutorial>
    
      Note that since OS X is
      based on UNIX, there is much in common between the OS X and Linux
      command line environments, and many of the UNIX tutorials may be
      useful:
    
        <http://www.rain.org/~mkummel/unix.html>
      
    
    
    A guided tour of the major tools,
    applied to typical CMS jobs, such as calibrating displays, creating
    device profiles, calibrating printers, linking profiles, and
    converting color spaces of raster files. 
    
    Although it is is a couple of years old now, this tutorial
    may also be of interest.
      
    Topical
        Discussions
    Discussions about particular topics:
    
    About Fluorescent Whitening Agent compensation
    
    Operation of particular instruments
    
    About ICC profiles and Gamut Mapping
    
    About display monitor settings and
      targets
    
    About display "Gamma"
    
    What's the difference between Calibration
      and Characterization ?
    
    Why doesn't my Colorimeter work
      well on my Wide Gamut display ?
    
    My blacks get crushed on my
      display - why ? How do I fix it ?
    
    How can I have confidence in the i1pro
      Driver ?
    
    Does the i1pro High Resolution mode
      improve accuracy ?
    
    Evaluating input targets
    
    ArgyllCMS's Absolute to media
      Relative Transform Space matrix ('arts') ICC tag
    
    Flow
                  diagram of Major Tools:
    
              
    
    Main Tools by
            category:
    Calibrating devices
    
    dispcal
              Adjust,
    calibrate and profile a display.
      printcal      Create a
    printer calibration .cal file from a .ti3 data file.
    Creating test targets for profiling or print calibration
    
    targen       
      Generate a profiling test target values .ti1 file. 
      filmtarg      Create
        film recorder TIFF files from Argyll .ti1 file. 
      printtarg     Create
        a PS, EPS or TIFF file containing test patch values, ready for
        printing.
    Obtaining test results for profiling or print calibration
    
    chartread     Read
        a test chart using an instrument to create a .ti3 data file. 
      dispread      Test
        and read colorimetric values from a display 
      filmread      Read
        film colorimetric values using a SpectroScanT (Deprecated ?)
      scanin       
      Convert a TIFF  image of a test chart into .ti3
        device values. 
      illumread     Use an
    instrument to measure an illuminant spectrum, and estimate its UV
    content.
    fakeread      Fake
        the reading of a device using an ICC or MPP profile. 
      synthread     Fake the
        reading of a device using a synthetic device model. 
    cb2ti3       
      Convert Colorblind format CMY/RGB test chart into
        Argyll .ti3 CGATS format. 
      kodak2ti3     Convert
        Kodak Colorflow format CMYK test chart into Argyll .ti3 CGATS
        format. 
      txt2ti3      
      Convert Gretag/Logo/X-Rite/Barbieri or other format
        RGB or CMYK test chart results into Argyll .ti3 CGATS format. 
    ls2ti3        Convert
            LightSpace format RGB .bcs test chart results into Argyll
            .ti3 CGATS format.
      fakeCMY      
      Create a fake Argyll .ti3 CMY data file from a CMYK
        profile, as a basis of creating a CMY to CMYK separation
      average       Average
        or Merge two or more measurement data files, or average patches
        within a single file.
    Creating Device Profiles
    colprof      
      Create an ICC profile from the .ti3 test data. 
    mppprof      
      Create a Model Printer Profile (MPP) from the .ti3
    test data. 
    revfix       
      Regenerate a device profiles B2A table data by
    inverting the A2B table.
    Creating Device Link Profiles
    collink      
      Link two device ICC profiles to create a device
    link profile.
    Converting colors or applying print calibration
    
    cctiff       
      Color convert a TIFF or JPEG file using a sequence
    of ICC device, device link, abstract profiles and calibration files.
    
    applycal      Apply
    calibration curves to an ICC profile.
    icclu        
      Lookup individual color values through any ICC
    profile table. 
    xicclu       
      Lookup individual color values forward or inverted
    though an ICC profile or CAL table. 
    mpplu        
      Lookup individual color values though an MPP
    profile. Also create MPP gamut files/views.
    greytiff      Convert
    a TIFF file to monochrome using an ICC device profile 
    Color Tweaking tools
    
    refine
               Creates an
    abstract profile from two chart readings, useful for refining
    proofing profiles. 
    
    Creating gamut views
    iccgamut      Create
    a gamut file or VRML file of the color gamut of an ICC profile. 
    tiffgamut     Create
    a gamut file or VRML file of the color gamut of a TIFF or JPEG
    image. 
    viewgam      
      Convert one or more gamuts into a VRML 3D
    visualization file. Compute an intersection.
    Diagnostic and test tools
    
    iccdump      
      Dump the contents of an ICC profile as text. 
    profcheck     Check
    an ICC profile against .ti3 test chart data, create pruned .ti3
    file.
    invprofcheck 
    Check ICC forward against inverse lookup. 
    splitsti3     Split
    a CGATS file (ie. a .ti3) into two parts randomly to verify
    profiling. 
    timage
             Create TIFF test
    images. 
    mppcheck      Check
    an MPP profile against .ti3 test chart data. 
    spotread      Use
    an instrument to read a single spot color value. 
    colverify     Verify
    matching of CIE in two CGATS/.ti3 files (also view differences as
    VRML)
    synthcal      Create
    a synthetic input, display or output calibration (.cal)file.
    Other Tools
    ccxxmake      Use
    a Spectrometer to create a Colorimeter Correction Matrix
    (CCMX)  or a Colorimeter Calibration Spectral Set (CCSS) 
    for a particular display.
    extracticc    Extract
      an embedded ICC profile from a TIFF or JPEG file.
    extractttag   Extract a text tag (ie. CGATS
      .ti3 data or CAL) from an ICC profile.
    dispwin       Install
    or uninstall display profile, set display calibration from profile
    or .cal file, test displace and dispwin access to a display.
    oeminst      
      Install Instrument manufacturers files for the
    Spyder 2, EDR or CCSS calibration files for i1d3 or Spyder 4 or
    5,  CCMX files for colorimeters.
    specplot      
    Plot a spectrum (.sp, .cmf, .ccss) and calculate CCT and VCT.
    spec2cie      Convert
    spectral .ti3 or .sp readings into CIE XYZ and D50 L*a*b* readings.
    Apply FWA, plot spectrums.
     
    Main Tools
            Alphabetic Listing:
    applycal      Apply
    calibration curves to an ICC profile.
    average      
      Average or Merge two or more
        measurement data files, or average patches within a single file.
    cb2ti3       
      Convert Colorblind format CMY/RGB test chart into
    Argyll .ti3 CGATS format. 
    cctiff       
      Color convert a TIFF or JPEG file using a sequence
    of ICC device, device link, abstract profiles and calibration files.
    ccxxmake      Use
    a Spectrometer to create a Colorimeter Correction Matrix
    (CCMX)  or a Colorimeter Calibration Spectral Set (CCSS) 
    for a particular display.
    chartread     Read
    a test chart using an instrument to create a .ti3 data file. 
    collink      
      Link two device ICC profiles to create a device
    link profile. 
    colprof      
      Create an ICC profile from the .ti3 test data.
    colverify     Verify matching
    of CIE in two CGATS/.ti3 files (also view differences as VRML)
    dispcal
            Adjust, calibrate and
    profile a display.
    dispread      Test
    and read colorimetric values from a display 
    dispwin       Install
    or uninstall display profile, set display calibration from profile
    or .cal file, test displace and dispwin access to a display.
    extracticc    Extract
      an embedded ICC profile from a TIFF or JPEG file.
    extractttag   Extract a text tag (ie. CGATS
      .ti3 data or CAL) from an ICC profile.
    fakeCMY      
      Create a fake Argyll .ti3 CMY data file from a CMYK
    profile, as a basis of creating a CMY to CMYK separation 
    fakeread      Fake
    the reading of a device using an ICC or MPP profile. 
    filmread      Read
    film colorimetric values using a SpectroScanT (Deprecated ?)
    filmtarg      Create
    film recorder TIFF files from Argyll .ti1 file. 
    greytiff      Convert
    a TIFF file to monochrome using an ICC device profile 
    iccdump      
      Dump the contents of an ICC profile as text. 
    iccgamut      Create
    a gamut file or VRML file of the color gamut of an ICC profile. 
    icclu        
      Lookup individual color values through any ICC
    profile table. 
    illumread     Use
    an instrument to measure an illuminant spectrum, and estimate its UV
    content.
    invprofcheck  Check ICC
    forward against inverse lookup. 
    kodak2ti3     Convert
    Kodak Colorflow format CMYK test chart into Argyll .ti3 CGATS
    format. 
    ls2ti3        Convert
            LightSpace format RGB .bcs test chart results into Argyll
            .ti3 CGATS format.
    mppcheck      Check
    an MPP profile against .ti3 test chart data. 
    mpplu        
      Lookup individual color values though an MPP
    profile. Also create MPP gamut files/views. 
    mppprof      
      Create a Model Printer Profile (MPP) from the .ti3
    test data. 
    oeminst      
      Install Instrument manufacturers files for the
    Spyder 2, EDR or CCSS calibration files for i1d3 or Spyder 4 or
    5,  CCMX files for colorimeters.
    printcal      Create
    a printer calibration .cal file from a .ti3 data file.
    printtarg     Create
        a PS, EPS or TIFF file containing test patch values, ready for
        printing.
    profcheck     Check
    an ICC profile against .ti3 test chart data, create pruned .ti3
    file.
    refine
               Creates an
    abstract profile from two chart readings, useful for refining
    proofing profiles. 
    revfix       
      Regenerate a device profiles B2A table data by
    inverting the A2B table. 
    scanin       
      Convert a TIFF  image of a test chart into
    .ti3 device values. 
    spec2cie      Convert
    spectral .ti3 or .sp readings into CIE XYZ and D50 L*a*b* readings.
    Apply FWA, plot spectrums.
    specplot      
    Plot a spectrum (.sp, .cmf, .ccss) and calculate CCT and VCT.
    splitsti3     Split
    a CGATS file (ie. a .ti3) into two parts randomly to verify
    profiling. 
    spotread      Use
    an instrument to read a single spot color value. 
    synthcal      Create
    a synthetic input, display or output calibration (.cal)file.
    synthread     Fake
        the reading of a device using a synthetic device model. 
    targen       
      Generate a profiling test target values .ti1 file.
    
    tiffgamut     Create
    a gamut file or VRML file of the color gamut of a TIFF or JPEG
    image. 
    timage
               Create TIFF
    test images. 
    txt2ti3      
      Convert Gretag/Logo/X-Rite/Barbieri or
        other format RGB or CMYK test chart results into Argyll .ti3
        CGATS format. 
    viewgam       Convert
    one or more gamuts into a VRML 3D visualization file. Compute an
    intersection.
    xicclu       
      Lookup individual color values forward or inverted
    though an ICC profile or CAL table. 
    
    
     Performance/memory tuning hints, tweaks
    for srcipting, plus lesser used behavior options.
    
     Performance hints. 
    
    Overview of the software and its aims and functionality.
    
    Limitations of the current functionality.
    
    How directories are organized, what they contain.
    
    Any detailed documentation on how the software works, or what
    algorithms it is based on. (Very incomplete.)
    
    A very brief description of minor tools and test harnesses. 
    
    
    
    Argyll uses a number of file formats for its operation, some that
    are external standards, and some that are unique to Argyll. 
    
    .ti1           
    Device test values 
    .ti2           
    Device test values & chart layout 
    .ti3           
    Device test values & CIE tristimulus/spectral results  Format details.
    .cal
               Device
    calibration information. Format details.
    .cht          
    Test chart recognition template. Format
      details. 
    .gam        
    3D gamut surface description 
    .sp           
    Illuminant spectral description 
    .cmf
             Color Matching
    Functions
    .ccmx
           Colorimeter Correction Matrix 
    .ccss
            Colorimeter Calibration
    Spectral Set 
    CGATS     
    Standard text based data exchange format 
    ICC          
    International Color Consortium profile format 
    MPP         
    Model device profile format 
    TIFF        
    Tag Image File Format raster files. 
    JPEG        
    Joint Photographic Experts Group, JPEG File Interchange Format
    raster files. 
    ucmm       Unix micro
    Color Management Module convention and configuration file format and
    Profile
      Locations.
    VRML      
    Virtual Reality Modelling Language 3D file format. 
    X3D
              Open
    standards file format to represent 3D scenes using XML.
    X3DOM    
    Open-source framework and runtime for 3D graphics on the Web.
    
     
    Errors, Corrections and Omissions:
     If you notice any errors, corrections needed or omissions in
    the current documentation, please contact the author.