Calibrating monitor with Argyll+dispcalGUI

Discussion in 'Computer Monitor Forum' started by Pictus, Apr 15, 2015.

  1. Pictus

    Pictus Active Member

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    Argyll+dispcalGUI is free(but support the developer) and the results are better
    than what you can get from X-rite or Datacolor software...


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    Support for Argyll developer
    http://www.argyllcms.com/
    "Unfortunately programmers and color experts can't live on encouragement and complements alone -
    they have bills to pay, equipment to keep up to date, instruments to buy, and other financial
    obligations just like normal people. So if you find ArgyllCMS valuable, and would like to
    continue to have technical support, bug-fixes, updates and drivers for new instruments added to
    it, or you appreciate having serious color management available on platforms other than MSWin
    and OS X, then it's a really good idea to provide support via a donation commensurate with the
    value it provides you.

    If you are a casual or hobby user, then something like $5 - $100 may be appropriate, depending
    on how deep your pockets are.

    If you are using ArgyllCMS in your business, an annual donation, of (say) 5-20% of the cost of
    the commercial software you have not had to pay for, would make a great deal of difference in
    ensuring that it continues to be available.

    If you are distributing ArgyllCMS as part of some other free package, then please make your
    users aware of the need to support the software that you and they depend upon.

    If you are distributing ArgyllCMS as part of some other package that you are make money out of
    (e.g., a commercial Linux distribution where ArgyllCMS is providing a feature that allows Linux
    to be on par with other operating systems with regard to Color Management), then it would help
    tremendously if you treated it like other key software you depend on, and make an allowance to
    donate a portion of a full time developers salary every year.

    If there is an insufficient level of ongoing support, then there is a very real possibility
    that you will return here in 6-12 months time, and find ArgyllCMS has gone."

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    -Download and install Argyll + displayCAL
    displayCAL have a new “Zero Install”, I do not like and prefer the standalone/manual way...
    Both versions are available to download.

    -I installed argyll to c:/argyll and displayCAL to c:/Argyll/displayCAL
    (better *not* to use version number for directory name)

    -For some instruments Argyll driver must be installed, ColorMunki Display/i1 Display Pro do not need,
    Huey maybe not, Spyder 3 need and Spyder 4 I do not know.
    To install argyll driver into Windows check here.

    How Can I Install Hardware with Unsigned Drivers in Windows 8?
    http://www.makeuseof.com/tag/how-can-i-install-hardware-with-unsigned-drivers-in-windows-8/

    Plug the calibration device into USB port version 2, not version 3.

    -displayCAL should run as administrator (Windows vista/7/8)
    Click with the right mouse button over C:/Argyll/dispcalGUI/displayCAL.exe go to
    Properties>Compatibility> and enable “Run this Program as an administrator”
    [​IMG]

    -First time you run displayCAL.exe, go to Menu>File>Locate Argyll CMS executables
    point to c:/Argyll/bin (remember, I used NO version in directory name)
    [​IMG]

    -Go to menu>Options and enable Show advanced calibration options
    set displayCAL like this
    [​IMG]
    [​IMG]
    Calibration Speed deals with the quality of the readings, LOW is the highest setting, but
    may take a LOT of time… If everything is right, LOW gives better results.

    [​IMG]
    Click in “Calibrate & profile”
    OBS, Single Curve + Matrix profiles may get better neutrals and Curves + Matrix better colors.
    If you got ‘black crush”(check the gradient down below) enable’ “Black point compensation” for matrix profiles, HDMI users should check this.

    ------------------------
    Attention!
    A correction matrix is needed for each type of panel back light like
    White LED, CCFL, WCCFL, GB-LED and etc... See here.
    For the i1Display/Munki go to menu>tools>Import colormeter corrections>AUTO*, then select the proper one in the Correction, also can try to use the ones from displayCAL database, just click in the small Earth icon.
    (For the AUTO* to work, first you must install the default calibration software from Datacolor or X-rite)
    [​IMG]
    For the Spyder4/5 from http://displaycal.net/#import-correction-matrices
    "Converts matrices from other softwares to Argyll's CCMX / CCSS formats and adds them to the corresponding drop down menu. Currently iColor Display, i1 Profiler, ColorMunki Display and Spyder 4/5 softwares are supported. If they are installed or the CD / disk image is mounted, the correct file(s) can in most cases be imported directly, otherwise they can be downloaded automatically. Please note: The colorimeter corrections imported from Spyder 4/5 software are only usable with the Spyder 4/5 and need to be selected in the measurement *Mode* dropdown instead of the colorimeter corrections dropdown."
    [​IMG]

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    -Put the calibration device over the spot and click in "Start measurement"
    [​IMG]

    -Click in “Whitepoint/White level”
    [​IMG]
    Wait 5 seconds and Click in “Start measurement”
    Using the monitor RGB channels, try to make 6500 with the smallest delta(all 3 colored bars with the same size) and adjust the monitor brightness to +- 120 to 160 cd/m2, as I work into a dim environment I prefer 120 cd/m2, when you have the desired values, click in “Stop measurement” and “Continue on to calibration”
    Notebook users probably will not have the option to change the RGB channels, so just adjust the brightness and
    change the Whitepoint to Color Temperature 6500K Daylight.
    [​IMG]

    When the process finish, install the profile...
    [​IMG]

    To verify the result, go to Verification and click in Measurement report
    [​IMG]

    For reference, print some targets in Fine Art quality, check http://www.northlight-images.co.uk/article_pages/test_images.html
    The Outback is a good one http://www.mediafire.com/view/xtuu58bx2is91lk/PrinterEvaluationImage_V002_ProPhoto.tif
    Can also use: (do not forget, human vision is not reliable)
    http://www.photofriday.com/calibrate.php
    http://www.drycreekphoto.com/Learn/Calibration/monitor_sensitivity.html
    http://www.lagom.nl/lcd-test/gradient.php
    The gradient(view in Photoshop) should be smooth with no clipping in the blacks and no color casts.
    [​IMG]
    The gradient with noise is more forgiving...
    [​IMG]
    In FireFox I can see from #6, but in Photoshop I can see from #1.
    [​IMG]

    Consider reading the quickstart http://dispcalgui.hoech.net/#quickstart
    Also look at the review sites like http://www.tftcentral.co.uk/reviews.htm
    or http://www.prad.de/en/monitore/reviews.html
    to see how they calibrated their units for optimum results.

    Complementary information:
    Soft proofing - Color Spaces and alike information.

    How to choose a good monitor

    ------------------------------------


    For FireFox and normal stuff I use "Single Curve + matrix" or "Curves + matrix", for
    Photoshop(soft proof) "XYZ LUT + matrix".

    The "Single Curve + matrix"
    [​IMG]

    The "XYZ LUT + matrix" for sRGB
    [​IMG]

    The "XYZ LUT + matrix" for Adobe RGB
    [​IMG]

    The "XYZ LUT + matrix" for Prophoto RGB
    [​IMG]

    BTW, in Photoshop menu Edit>Preferences>Performance>Graphics Processor Settings>Advanced Settings>Drawing Mode = Basic
    https://forums.adobe.com/message/8236984#8236984
     
    Last edited: Nov 4, 2017
    Sugiharto likes this.
  2. yasamoka

    yasamoka Ancient Guru

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    Great post!

    I use that combination too and it's excellent. Using the i1DP.
     
  3. Sugiharto

    Sugiharto New Member

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    Hello, can you reupload the picture. I tried to follow your instruction but the picture are gone :(

    Thank you
     
  4. Pictus

    Pictus Active Member

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    Hi,
    Ok, reedited the post copying from another post I had.
     
    Last edited: Nov 4, 2017
    Sugiharto likes this.

  5. Sugiharto

    Sugiharto New Member

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    Thank you for your hard work Pictus :)
     
  6. Sugiharto

    Sugiharto New Member

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    By the way, are you still using Basic on Drawing Mode until now? Adobe just lauching new PS not along ago, had you try it?
     
  7. Pictus

    Pictus Active Member

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    Glad to help, I am still using BASIC in Drawing Mode.
     
  8. alanm

    alanm Ancient Guru

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    Since fiddling around with a calibration device and profiles some 3 years back, I've found at far easier to just get a good monitor with decent onboard controls and use the calibration device to measure the results and fine tune them for proper contrast, gamma and RGB. The benefits of this approach is that you can finally do away with the horrid profile system that is often not respected by many games. Software that locks the color profile into place is often hit and miss. Not being bound by color profiles to correct your monitor is quite a relief.
     
  9. Pictus

    Pictus Active Member

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    I also tweak the monitor controls to meet the proper values, this is the best approach
    for Argyll+displayCAL as there will be less correction needed by the calibration curves.
    Because here it is a wide gamut monitor the profile is a must have.

    Calibration vs. Characterization
    https://argyllcms.com/doc/calvschar.html
     

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