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ProRes colour shift on export?!

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Luke Tyrrell
ProRes colour shift on export?!
on Apr 17, 2013 at 10:30:03 pm

When exporting a ProRes file from FCP7 I seem to get an odd colour shift from what shows in the timeline. However if I export to H.264 its exactly as it should be.
I have researched this on Google and it suggests the problems with Quicktime but I don't see how?

Heres a screenshot.... the TOP is the H.264 and BOTTOM is the ProRess which as you can see it much darker. Anyone else had this issue?



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Ryan Holmes
Re: ProRes colour shift on export?!
on Apr 18, 2013 at 2:00:35 am

Use Quicktime 7 to view your footage. Quicktime X is terrible for color accuracy.

That said let me quote from a post on RedUser.net "There is no such thing as "accurate" in the world of Quicktime. There is only the values you're getting passed to whatever delivery and display format you're using. If your delivery format is HD video, you must look at it on an HD monitor through a proper video output card (Kona 3, Blackmagic, etc.). If your deliver format is the Web, you must look at it fully encoded to whatever codec you're going to deliver it in, hopefully in a Web browser enabled player. The only thing that's really accurate is a histogram, which will tell you without question where your digital image levels are. Video scopes will also do this, but only if you place them on the monitor path, external to the computer."
http://www.reduser.net/forum/showthread.php?53148-Gamma-Shift-when-outputti...

Just do a Google search for this (or COW search) - http://bit.ly/11ynUTx

You'll see this as a common issue that Apple has never really addressed well.

Ryan Holmes
http://www.ryanholmes.me
@CutColorPost


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