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colour variations after print

Aug 2, 2012 11:33 PM

hello forum.

 

i have taken an picture from the internet,and from RGB i have converted it to CMYK

the background is supposed to be black as well as the picture that fades into it.

after i print the final image,i can see 2 variations of black on my image all though

both blacks have same colour value.

 
Replies
  • Currently Being Moderated
    Aug 2, 2012 11:38 PM   in reply to inquestflash

    Could you post the image in question and maybe a scan/photograph of the printed result?

    Was the image part of a page in a design application? Could it have been affected by overlying elements?

     
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    Aug 2, 2012 11:40 PM   in reply to inquestflash

    On what printer are you printing? Waht are your color management settings?

     

    Mylenium

     
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  • Currently Being Moderated
    Aug 3, 2012 12:20 AM   in reply to inquestflash

    inquestflash wrote:

     

    …some casual printing place.…

     

    Well, that doesn't help anyone who might want to answer your question, does it?

     
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  • Currently Being Moderated
    Aug 3, 2012 12:26 AM   in reply to inquestflash

    The background black pixels in that screen shot are all identical:

     

    R = 1

    G = 1

    B = 1

    except for a thin 0,0,0 frame around the color panel.

     

    The black in the color swatch inside the color panel is 3,0,0.

     
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  • Currently Being Moderated
    Aug 3, 2012 1:39 AM   in reply to inquestflash

    What print process (offset, inkjet, …)?

    And the screenshot really does not provide a lot of help, could you post the image (lores or section) and a photograph of the printed result where on can discern the two different colors?

     
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  • Currently Being Moderated
    Aug 3, 2012 2:38 AM   in reply to inquestflash

    You are making it impossible for anyone to help in any way.

     

    The web site of your print shop says they generate "Kodak quality prints".  For the process it was a blunder for you to convert your image to CMYK.  Whatever possessed you?

     

    They also offer large posters, and I'm guessing that means large-format inkjet printers, for which RGB images are also expected, and CMYK would be totally inaproppriate there too.

     

    The image you posted tells me nothing, it just makes me wonder what you are trying to describe. 

     

    You can post a link to any Internet image or site here, sure.

     
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  • Currently Being Moderated
    Aug 3, 2012 4:09 AM   in reply to inquestflash

    If one brightens the image significantly (with Curver for example) the borders do become noticeable.

     
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  • Currently Being Moderated
    Aug 3, 2012 4:51 AM   in reply to inquestflash

    For starters make the added black area the same black as in the image.

    Other options would be softening the mask of the image or even using Blend if-settings to hide its blackest parts.

     
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