PS colors never match other apps

Discussion in 'Photoshop Tutorials' started by Keith Wiley, Dec 10, 2003.

  1. Keith Wiley

    Keith Wiley Guest

    It has been my experience for quite a long time now that the colors of an
    image will often match in a wide variety of programs (Netscape, Preview,
    GraphicConverter, etc.), but in PS and PS alone, the colors will be
    radically different, usually much much lighter in PS than in Netscape and
    other apps). It may not actually be a "color" issue, so much as a gamma
    issue, I'm not sure. This makes it next to impossible to edit an image so
    that it will look good when viewed in other apps (my primary goal being to
    produce images for the web).

    Now, I am aware that there is a big gamma discrepancy between Macs and
    PCs, so I'm not even trying to think about that right now (since I don't
    have a Windows machine to test the appearance on anyway), but that
    certainly isn't what's going on here since I'm experiencing this
    color-variation in different apps all on a Mac.

    I have twiddled with the Color settings in PS quite a bit. With the
    Preview boxed checked, I have tried selecting numerous color profiles and
    have otherwise tried changing all the color settings as much as I can. If
    there is any apparant color variation at all as these controls are varied
    it is very very slight, certainly never enough to account for the vast
    discrepancy observed in other programs.

    If anyone has any thoughts on this I would greatly appreciate it. Thank
    you.

    ________________________________________________________________________
    Keith Wiley
    http://www.unm.edu/~keithw http://www.mp3.com/KeithWiley

    "Yet mark his perfect self-contentment, and hence learn his lesson,
    that to be self-contented is to be vile and ignorant, and that to
    aspire is better than to be blindly and impotently happy."
    -- Edwin A. Abbott, Flatland
    ________________________________________________________________________
     
    Keith Wiley, Dec 10, 2003
    #1
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  2. Keith Wiley

    Flycaster Guest

    All th other apps you've mentioned share one thing in common: they are *not*
    colormanaged, whereas PS is. In a nutshell, two things are causing this
    problem. First, those other apps all use the underlying OS color space of
    sRGB, and they will NOT use any other profile or tag. Second, your monitor
    profile is ONLY used in PS, not in the other apps.

    One way to do what you want is to make a copy of the file(s), convert it to
    Monitor RGB, and do your work there. Save it, and it *will* look the same
    in your other apps. The problem, however, with that is it won't look the
    same on anyone else's monitor. It will result in fairly washed out images
    when viewed in a PC browser, none of which are color managed.

    The best way to do it is to convert it to sRGB, work on it, and save it.
    It'll look close to what others will see on most of their machines (which
    are, of course, Win boxes), but it will look "dark" in your other apps.
    You're quite used to that, I'm sure. That discrepancy is a simple fact of
    life, due to the gamma difference between the "standard" Mac and the native
    gamma of both PC's and the sRGB working color space.

    Frankly, though, I have no idea why Apple still recommends a gamma of 1.8.
    Most of the service bureaus I work with have ALL their boxes (Mac and PC)
    calibrated to a gamma of 2.2. Ditto with the 2 web designers I've worked
    with, both of whom use Macs. As has been explained to me, this is not only
    the native gamma of sRGB, but also AdobeRGB98, every CRT monitor made today,
    as well as the videocards used in both platforms.

    It's puzzling. Does anyone know the answer? Is it just another out-of-date
    legacy issue?
     
    Flycaster, Dec 11, 2003
    #2
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  3. Keith Wiley

    Tacit Guest

    It has been my experience for quite a long time now that the colors of an
    Correct. Photoshop does color management. Other programs do not.
    You must instruct Photoshop to show you the image with no color management. Use
    View->Proof Setup->Monitor RGB.
     
    Tacit, Dec 11, 2003
    #3
  4. I'm running windows 2000 with Photoshop CS on a DELL p990 monitor. How can I
    check to make sure my gamma settings are correct?
     
    Gianni Chiappetta, Dec 12, 2003
    #4
  5. Keith Wiley

    Tacit Guest

    I'm running windows 2000 with Photoshop CS on a DELL p990 monitor. How can
    Run Adobe Gamma.

    But that's not your problem; if you want to see your images in Photoshop just
    like they look in another program, use Monitor RGB as your proof setup.
     
    Tacit, Dec 12, 2003
    #5
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