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  • Adobe After Effects

    Luminance Levels Failed Harding Test

    Posted by Ceri Allen on January 11, 2017 at 11:54 am

    Hi

    I have a graphics based piece created in after effects that has failed a harding test due to luminance levels on one section.
    I have added the Broadcast Colors filter to this problem section and set to the following:

    Broadcast Locale: PAL
    How To Make Color Safe: Reduce Luminance
    Maximum Signal Amplitude (IRE): 100

    Is this a suitable fix? I cannot see any visible changes from this filter and am concerned to resend to the client and have it fail again.
    I was also wondering whether I should be extra cautious and pull down the whites a bit using either levels or curves?Or if there is anything else I can use?

    Thanks

    Ceri

    Simon Ubsdell replied 9 years, 4 months ago 2 Members · 1 Reply
  • 1 Reply

  • Simon Ubsdell

    January 11, 2017 at 12:22 pm

    The Harding Test is for flashing (i.e. abrupt, rapid, significant luminance changes) not for peak luminance.

    You need to look at your graphics and reduce the amount of flashing in order to pass the test. Usually you will be given a log of precisely where the issues occur.

    Simon Ubsdell
    tokyo productions
    hawaiki

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