Color management question on having separate profiles in one document

I have a document with images in it that have attached printer profiles with different separations, I'd like to print without further conversion of these images since they are profiled to be printed with no color management, how do I go about this?
Does Indesign see the attached profiles and ignore the document profile? Or Do I have to set a document profile with no UCR/GCR that will maintain CMYK values.
Thank you

>I'd like to print without further conversion of these images
Profiles are only useful if there needs to be additional color conversions at output or exporta conversion to a new CMYK space (new press conditions) or conversion to RGB for monitor display or an RGB proofing device.
You don't want or need additional CMYK to CMYK conversions so you don't need the embedded profiles. When the profiles are ignored, the ID document profile is assigned to the images (there's no conversion) and as long as you output with the destination as Document CMYK the image values will be output with no change.
Ignoring the profiles can potentially change the ID preview of images separated with conflicting profiles (CMYK>RGB), but it sounds like you are simply separating for different black generations so you shouldn't see a preview change.

Similar Messages

  • Another color management question

    Hi folks,
    Apologies for yet another color management question, but Im getting very confused and could do with some help. I use a Canon 10D and Canon 30D. Ive come to LightRoom from Pixmantec Raw Shooter.
    As Ive gotten more serious about producing high quality images for both the web and as prints, I thought Id invest in the Colorvision Spyder2 calibration product. So my monitor is now calibrated (quite a difference from what I was seeing!) and I have a calibration profile applied.
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    So any pointers or explanations would be really appreciated. I also acknowledge that this is my first foray into color management, and feel free to tell me to go and read some introductory article (link please!) and then come back with a sensible question if thats whats needed!
    Thanks in advance.
    - Pete

    Lightroom color management.
    a.) Monitor profile used: The profile set as the default in your operating system (e.g. Windows xp). (your monitor profile software usually does this when you calibrate/profile your monitor).
    b.) Working space: ProPhotoRGB
    c.) Export color space: You can choose one of the following sRGB; Adobe RGB or Pro Photo RGB.
    There is no option (afaik) to change a.) or b.) the option you choose in c.) will affect how the exported image will be displayed in color managed applications or non-color managed applications.
    Non-color managed applications are not able to display Adobe RGB or Pro Photo RGB correctly. I guess if you wish a consistent display of your images in color managed and non-color managed applications then the only common factor is sRGB and you should export your images in sRGB color space.
    The benefits of the other expanded color spaces are in printing and you also would have to get this end of your color management correct. Printing profiles to match your printer and each paper being used etc.
    Until you can get this all sorted out you will get better results from sRGB, this is also applicable when using most commercial printing services.

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  • Color Management Question

    I use LightRoom 2 and CS3.  All my photo enlargements are done at CostCo on a Noritsu 3111.  In the past before I started using LightRoom, I edited in CS, then saved the file to a memory stick, and took it to CostCo for printing.  I always got excellent, consistent results.
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    Mike

    Thank you both Pete and Jao,
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  • Fully Color Managed Application (using calibrated monitor profiles)

    Hi,
    I'm new to JAVA 2D so I may be missing something obvious - apologies if I am, but I've been trawling the API and web to try and solve this for many hours - so any help would be much appreciated!
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    Pausing in the debugger I found the API was busy transforming by image to sRGB this leads to my third question...
    QUESTION 3: If I pass an image with a color model to drawImage() does drawImage do any color conversion, e.g will it transform my adobe image to sRGB (not what I want in this case!)?
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    Thanks.

    I have had some sucess with this, but it wasn't easy or obvious. The trick is converting the color to the monitor profile and then changing the color model to be sRGB without changing the pixel data. JAI's Format operation does this easily although I'm sure there are other ways to do it. The RGB data is then displayed without being converted to sRGB so that the monitor calibration is maintained. I will answer your questions since I had similar ones.
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    Q2. I believe paint is just very slow, not hanging. Any color model other than XYZ or sRGB requires conversion before it can be displayed (as sRGB). This is both slow and incorrect for a calibrated monitor.
    Q3. Yes that is what I have found, a conversion to sRGB will always happen, unless it appears to be already done as when the color model is sRGB (even though the pixel data is not!).
    Q4. It is possible but apparently only with this somewhat strange work around. If there is a way to change the Java display profile to be other than sRGB, I could not find it either. However, calibrated RGB display can be achieved.
    Since I have seen many other posts asking for an example of color management, here is some code. This JAI conversion works for many pairs of source and destination profiles including CMYK to RGB. It does require using ICC profiles in external files rather than embedded in the image.
    package calibratedrgb;
    import com.sun.media.jai.widget.DisplayJAI;
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    import java.awt.color.*;
    import java.awt.image.*;
    import java.io.IOException;
    import javax.media.jai.*;
    import javax.swing.*;
    * @author keitht
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            String filename = args[0];
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            ICC_Profile sourceProfile = ICC_Profile.getInstance("AdobeRGB1998.icc");
            ICC_ColorSpace sourceCS = new ICC_ColorSpace(sourceProfile);
            ColorModel sourceCM = RasterFactory.createComponentColorModel(
                    pi.getSampleModel().getDataType(), sourceCS, false, false,Transparency.OPAQUE);
            ImageLayout sourceIL = new ImageLayout();
            sourceIL.setColorModel(sourceCM);
            // tag the image with the source profile using format
            RenderingHints sourceHints = new RenderingHints(JAI.KEY_IMAGE_LAYOUT, sourceIL);
            ParameterBlockJAI ipb = new ParameterBlockJAI("format");
            ipb.addSource(pi);
            ipb.setParameter("datatype", pi.getSampleModel().getDataType());
            pi = JAI.create("format", ipb, sourceHints);
            // create a destination color model from the monitor ICC profile
            ICC_Profile destinationProfile = ICC_Profile.getInstance("Monitor Profile.icm");
            ICC_ColorSpace destinationCS = new ICC_ColorSpace(destinationProfile);
            ColorModel destinationCM = RasterFactory.createComponentColorModel(
                    pi.getSampleModel().getDataType(), destinationCS, false, false, Transparency.OPAQUE);
            ImageLayout destinationIL = new ImageLayout();
            destinationIL.setColorModel(destinationCM);
            // convert from source to destination profile
            RenderingHints destinationHints = new RenderingHints(JAI.KEY_IMAGE_LAYOUT, destinationIL);
            ParameterBlockJAI cpb = new ParameterBlockJAI("colorconvert");
            cpb.addSource(pi);
            cpb.setParameter("colormodel", destinationCM);
            pi = JAI.create("colorconvert", cpb, destinationHints);
            // image is now the calibrated monitor RGB data ready to display, but
            // an unwanted conversion to sRGB will occur without the following...
            // first, create an sRGB color model
            ColorSpace sRGB = ColorSpace.getInstance(ColorSpace.CS_sRGB);
            ColorModel sRGBcm = RasterFactory.createComponentColorModel(
                    pi.getSampleModel().getDataType(), sRGB, false, false, Transparency.OPAQUE);
            ImageLayout sRGBil = new ImageLayout();
            sRGBil.setColorModel(sRGBcm);
            // then avoid the incorrect conversion to sRGB on the way to the display
            // by using format to tag the image as sRGB without changing the data
            RenderingHints sRGBhints = new RenderingHints(JAI.KEY_IMAGE_LAYOUT, sRGBil);
            ParameterBlockJAI sRGBpb = new ParameterBlockJAI("format");
            sRGBpb.addSource(pi);
            sRGBpb.setParameter("datatype", pi.getSampleModel().getDataType());
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            // RGB numbers are unaffected and can now be sent without conversion to the display
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            // by the JRE because sRGB is the default graphics configuration color model profile
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            Container contentPane = frame.getContentPane();
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            contentPane.add(new JScrollPane(d),BorderLayout.CENTER);
            frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
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  • Newbie color management question

    hi folks
    using cs4. just finished a cmyk job on a new press. colors on the final print job were pretty faithful to what i saw on my monitor when doing the design, with a few exceptions that i'd like to tweak if possible. i'm new to color management, so looking for some pointers.
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    thanks.........

    Do you have a colorimeter and monitor profiling software? That's the place to start any color managed workflow. You also need a reasonably good monitor that CAN be calibrated. If the monitor isn't accurately showing you the colors, then nothing you do is going to matter.
    Matching the monitor to the print is an old technique that works only when you have a closed loop where all work is output on the same press under the same conditions. The purpose of using device independent editing spaces, such as Adobe RGB, is that in theory any properly calibrated monitor will display the image the same, and you can convert to any known output space at the time of output.
    Terms like mellow looking yellow are pretty subjective, so I don't know what you were expecting, but I wouldn't expect 35y, 15k to be very bright, nor very yellow. While I wouldn't describe the color as green on my monitor, it certainly doesn't resemble a banana, and next to a brighter yellow one might call it greenish by comparison. It's really a light yellowish gray,I think.
    I'm putting up a comparison here to see what it looks like, but colors won't be accurate in a browser.

  • SRGB vs no Color Management question

    I have two workflows for Photoshop that produce the exact same results and I want to know which one to use, but most importantly why?
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    1. Photoshop Color Settings is set to "Monitor Color" which tells the PSD to not use color management.
    2. I check with Proof Colors (View > Proof Colors), having Monitor RGB selected (View > Proof Setup > Monitor RGB), and of course nothing changes.
    3. I Save for Web and nothing changes (If I select "convert to sRGB" in the Save for Web dialog the colors wash out so I NEVER check this).
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    1. Photoshop Color Settings is set to "North America General Purpose 2" which tells the PSD to use sRGB.
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    It's about 1:30 AM in my part of the world I need to get some rest, so I'll have to be brief.
    I've never seen so many misconceptions crammed into a single post as you've managed to get in your last one. 
    I'll try to get at least the most glaring ones.
    eddit wrote:
    1. I do understand that of the millions on monitors there are none that match, and the exact reds, greens, and blues that I see on my screen differ from other screens (i have a number of computers in my home and am very aware of this).
    Good, but that's not the point. 
    eddit wrote:
    I also know that there is a huge gamma shift from PC to Mac as I use to be a PC users and am now on a Mac.
    Only if the Mac user is still living in the stone age.  Macs should be calibrated to gamma 2.2, just like a PeeCee.  The old gamma 1.8 standard is a relic left over from the day of Apple monochrome monitors and LaserWriter b&w printers.  Even Apple recommends 2.2.
    eddit wrote:
    why would I work with a psd that is color managed, if it will all just get dumped by the browser anyways?
    Because presumably you want to have a clue as to what your image looks like and what it might look like to others.
    This is totally independent from whether you embed a profile or not.  Different issue.
    eddit wrote:
    2. I'm not talking about EMBEDDING profiles into any of the images that I Save For Web.
    Neither am I.
    eddit wrote:
    3. I am far more interested in color consistency rather than color accuracy as G Ballard points out in his tutorials.
    The only way to achieve consistency is through a color managed workflow.  That's what Color Management is all about, consistency.
    eddit wrote:
    From what G Ballard says, in a web browser, Macs apply the monitor profile and Windows applies sRGB.
    Good grief!  That is so wrong or badly phrased that I feel bad even quoting it!   That statement is garbage/rubbish.
    Only the bloody Slowfari (Apple's Safari) throws monitor profile at untagged files, i.e. files with no embedded color profile.  No other browser does that.  Period.  If the file is tagged, Safari will honor the embedded profile.
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    All other browsers on this planet, Mac and Windoze, are not color managed and assume sRGB for all files, with or without an embedded profile.
    The reason the files look very similar to you is that you are dealing with the lowest common denominator (sRGB, where the s stands for sh¡t, as we know now), and probably your color monitor is pretty close to that common denominator.
    If you happened to have an expensive truly wide-gamut monitor, your untagged files created in your monitor profile as working space would look like cr@p to you.
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  • Accurate proof with inaccurate monitor? [color management question]

    At the risk of sounding really dumb, here goes:
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    I'm still using my Sony Artisan, and dreading the day it fails to calibrate, but I'm definitely in the minority now. Adobe Gamma is useless for LCDs, and no longer ships, but the modern hardwares solutions are all supposed to be compatible. I suspect you'll get good results with a good monitor.
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  • Basic color management questions

    Having difficult understanding some concepts in color management - would appreciate any guidance to further understand it.
    What is the difference in backgrounds between additive and subtractive process color systems?
    How is white formed differently in additive and subtractive process systems?
    How are the non-process colors like orange formed differently in the additive and subtractive process systems? What colors from each system forms an orange?
    Why is the difference in the process of color formation of major concern with the use of computers in the preparation of materials for 4-color process color printing?
    Why is the difference in the process of color formation of major concern with the use of computers in the preparation of materials for 4-color process color printing?

    Sarah,
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    What is the difference in backgrounds between additive and subtractive process color systems?
    How is white formed differently in additive and subtractive process systems?
    RGB blends "light" to generate colors.  CMYK blends "inks".  Starting with RGB and light.....pure white blends high levels of red, green and blue wavelengths in approximate equal amounts, which we perceive as white.  In Photoshop parlance, using 8-bit, this translates to 255R, 255G, 255B.  When we see an object, we are actually seeing the light that reflects from that object, not the object itself.  So, a bright white object reflects most of the visible light spectrum and reaches our eye, which the brain interprets to be white.  A black object "absorbs" light so nothing is reflected to the eye.
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    How are the non-process colors like orange formed differently in the additive and subtractive process systems? What colors from each system forms an orange?
    Why is the difference in the process of color formation of major concern with the use of computers in the preparation of materials for 4-color process color printing?
    In the CMYK world, orange is a mixture of Yellow and Magenta inks, with more yellow than magenta.  For example, 52M, 94Y gives a fairly vibrant orange.  Again, hue, saturation and brightness are dictated by the mix percentages, paper, ink limits, ink purity, etc.  In the RGB world, this same color is defined as 255R, 143G, 33B (depending on the "flavor" (color spaces) of RGB and CMYK you are using.  There is a relationship between RGB and CMYK, and this example is no exception.  When red is maxed out at 255, cyan is the opposite, in this case zero.  In this orange color, Green is 143, near the middle of the range, and so is its opposite, Magenta, which is near the middle of its range, at 52.  Blue is 33, at the very low end of its range, and its opposite, Yellow, is near the top of its range at 94.  Since this is a bright color, there is no black ink used at all.  If it were a darker orange, there would probably be some black in as well.
    Some colors can be created in RGB that cannot be duplicated in CMYK.  The opposite is also usually true, that there are colors in CMYK that cannot be duplicated in RGB (depending on the color space you use).  If your intended output is a monitor, the internet, email, or a printer that needs "light" you would generally use RGB.  If the intent is to "print" the job, on a press, inkjet, laser, etc, then CMYK is generally used.  Even if you send an RGB file to your inkjet, the printer driver translates the RGB colors to CMYK in the background before output.  Most, if not all, printers use CMYK subtractive inks for printing,  These can generate a large portion of the printable spectrum.  Some printers add light cyan and light magenta inks, or even red, green, blue, orange, and other colors to help extend the color gamut of the printer so it can achieve colors that would be "out of gamut" using CMYK alone.
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    Like I said at the beginning, this is a very deep and complex subject, and this only touches on the basics.
    Lou

  • I want to use two separate Lion Time Machine backups and use them to create two separate profiles on one new computer

    This is something I need to do temporarily but I must do it. 
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