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Thread: ICC profile V2 and V4 version What is the difference in the application?

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    Junior Member gaoqiao9988 is on a distinguished road
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    ICC profile V2 and V4 version What is the difference in the application?

    ICC profile V2 and V4 version What is the difference in the application?

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    PRC Member ColorWizard is a glorious beacon of light ColorWizard is a glorious beacon of light ColorWizard is a glorious beacon of light ColorWizard is a glorious beacon of light ColorWizard is a glorious beacon of light ColorWizard is a glorious beacon of light ColorWizard's Avatar
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    Quote Originally Posted by gaoqiao9988 View Post
    ICC profile V2 and V4 version What is the difference in the application?
    The following info should be enough to get a general answer on your general question:
    • www.color.org/whyusev4.xalter
    • nativedigital.co.uk/site/2013/02/icc-version-2-or-4/
    Cheers,
    CW

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    Junior Member llmmffmmll is on a distinguished road
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    Quote Originally Posted by gaoqiao9988 View Post
    ICC profile V2 and V4 version What is the difference in the application?
    Why use ICC v4 profiles?

    ICC recommends the use of profiles made according to the v4 specification in place of the older v2 specification, as it provides better support for consistent results in open, vendor-neutral, cross-platform color management systems.
    Benefits that users will see with v4 are:

    More consistent and accurate colorimetric intent transforms resulting from a fully-defined media white point and more consistent handling of black points
    More consistent and higher quality perceptual intent transforms because there is now a fully-defined perceptual reference medium dynamic range and gamut
    Smaller and more accurate profiles that make use of new efficient transform structures
    Generally improved consistency between different profiles and CMMs as a result of improvements to the specification throughout
    Better support for re-purposing and proofing of images rendered with the perceptual and colorimetric intents through more accurate inverse transforms
    V4 raison d'etre to enable intelligent CMMs and improve results for non-linear color spaces contains the V2 - V4 technical changes and benefits list.

    More information on the v4 specification and the advantages of v4 is available.

    While ICC recommends the use of v4 profiles wherever possible, it recognizes that v2 profiles continue to be used in some workflows and can give good results. Some recommendations on making v2 profiles are provided for developers.

    In PDF/X workflows, Ghent Work Group Process Control subcommittee previously recommended restricting ICC profiles in PDF/X to those made to the older v2 specification. The group is currently testing the use of v4 profiles in real world PDF/X-4 workflows. See a summary of progress and details of how to participate in the GWG tests.

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    Junior Member skymen is on a distinguished road
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    Important!

    It´s important to know that some Apps (like older versions auf Safari, FF,...) have Problems with ICC v4!
    So at profiling create v2 and v4!

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