Embedded RGB Profile in Graphics

Discussion in 'Photoshop' started by Alex, Jul 19, 2005.

  1. Alex

    Alex Guest

    Hi everyone,

    Our graphic designer sent me some graphics for our website, but when I
    edit the graphics and resave as GIF the colors are abit off compared to
    the graphics our graphic designer created on her computer.

    The graphics are from Photoshop CS, and when I open it I get the
    message:

    The document has an embedded color profile that does not match the
    current RGB working space. The embedded profile will be used instead
    of the working space.
    Embedded: Cinema Display
    Working: sRGB IEC61966-2.1

    I figure this is why the graphics I save are just abit off when put
    next to the graphics created by our graphic designer. For example we
    have a menu created in PS and chopped into smaller graphics to do
    hover-overs. Here's one graphic created by our web designer:
    http://www.hillcrest.net/images/Hillcrest-rollovers_03.gif
    and one I edited and resaved:
    http://www.hillcrest.net/images/Hillcrest-rollovers_03b.gif
    They're each off just a shade, but when put next to one another it's
    VERY noticeable.

    Suggestions? How can I edit the graphic so what I create matches
    verbatum what the graphic designer creates? The designer charges quite
    abit for simple stuff like changing menus, which is why we requested
    the Photoshop files.

    Thanks for any suggestions or ideas --

    Alex
     
    Alex, Jul 19, 2005
    #1
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  2. Alex

    Bill Hilton Guest

    Alex writes ...
    I think there are two problems, one is that the designer is using
    "Cinema Display" for a working space and you are set up for sRGB. So
    when you convert to a different working space you'll get some color
    changes.

    The second problem (or potential problem) is that gif files are limited
    to 8 bit color or 256 total colors and once you've changed working
    spaces you could easily map to a different set of 256 (or at least some
    of them will be different).

    There is a 216 color sub-set known as "web safe colors" which should
    display colors correctly on both Mac and PC systems using 8 bit color,
    but of course most of us have our monitors set to display more colors
    than this. But this is probably your best bet for consistent gif
    colors. You can go to Photoshop Help and type in 'web safe palette'
    and read up on the nuances of this.

    Ideally you could get the designer to give you gif files that are
    already converted to this 216 color palette and you should be OK. If
    you are not getting gif files from them I would suggest either asking
    them to use sRGB working space or, perhaps the better idea (depends on
    various factors), you should just select to use the embedded "Cinema
    Display" working spaces for images from this designer when you get the
    Profile Mismatch dialog box and then convert to the web safe palette
    later when you make gifs. (This assumes you actually have the 'Cinema
    Display' ICC profile on your system ... if you don't you can probably
    get it from the designer easily enough).

    So there are two problems (working space conversion causing color
    shifts and probable different gif mapping of colors) and the two
    solutions are to use the same working space and to limit the gifs to a
    fixed palette like the 'web safe' one described above.
    Good luck.

    Bill
     
    Bill Hilton, Jul 19, 2005
    #2
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  3. Alex

    tacit Guest

    Step 1: You can't.
    Step 2: Forget it.

    The thing that designers--especially print designers not accustomed to
    dealing with the realities of the Web--do not realize is that browsers
    (by default) do not pay any attention to color management or color
    profiles whatsoever. Every Web graphic is going to look different on
    every different monitor. You simply can not get a graphic to look the
    same way on Sally's computer and on Billy's computer and on Joe's
    computer, unless you go into Sally's house, Billy's house, and Joe's
    house and calibrate their systems.

    Web graphics can not be expected to display consistently on every user's
    computer. Sorry.
     
    tacit, Jul 19, 2005
    #3
  4. Alex

    Sir Real Guest

    On 19 Jul 2005 09:42:22 -0700, in article
    My first knee-jerk reaction is to question why you need to use the GIF format.
    I would say to go ahead and edit/resize the images, then use the "Save for Web"
    option and save to a JPG format.
     
    Sir Real, Jul 19, 2005
    #4
  5. Alex

    Bill Hilton Guest

    tacit writes ...
    While I agree with what you say, I think the original poster is asking
    something different ... I *think* he's asking how to make sure a
    graphic created by designer A on his computer has the same GIF colors
    as a graphic created by designer B on a different computer when the two
    graphics are placed on one web page.

    Or, to be a cynic about it, "we're over-paying this frippy designer so
    we want to take his PSD files and edit them a bit to save money when we
    make a small change, but when we do the colors don't match the rest of
    the web page he designed earlier" :) The original designer probably
    anticipated this and didn't make color matching easy on them on
    purpose, given his choice of working spaces.

    Anyway, that's what I thought was being asked and what I was answering
    in my response.

    Bill
     
    Bill Hilton, Jul 19, 2005
    #5
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