So if I go into photoshop and make a black to white gradient if I save it as 10 bit that should work, correct? Too bad only CRTs assure no banding. Wonder if Sony is going to let me put that signal up on their new BVM replacement OLED monitors to check? This is starting to sound fun.
--- In Avid-L2@yahoogroups.com, Bogdan Grigoresco <bogdan_grigorescu@...> wrote:
>
> horizontal B/W ramp with 1024 levels;
> make sure you test on a 10bit monitor(preferably CRT), otherwise banding may occur even with 10bit signals.
>
> cheers,
> Bogdan Grigoresco
> www.finale.tv
>
> --- On Mon, 4/11/11, johnrobmoore <bigfish@...> wrote:
>
> From: johnrobmoore <bigfish@...>
> Subject: [Avid-L2] Re: RGB QT export
> To: Avid-L2@yahoogroups.com
> Date: Monday, April 11, 2011, 7:10 AM
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> What is the proper method to test whether a file is 8 o10 bit? From this thread just because the inspector window say trillions how do you know the bits aten't getting truncated? Is there a specific test pattern to use etc...?
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>
> --- In Avid-L2@yahoogroups.com, Michael Brockington <brocking@> wrote:
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> >
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> > It's also worth mentioning that the same problem exists going in the
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> > other direction.
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> >
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> > If you export a 10-bit uncompressed material from the Avid using
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> > same-as-source, you get a 10-bit quicktime. Testing will confirm it
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> > really is 10-bit. But if you bring this into After Effects it shows up
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> > as a footage item with only "Millions of Colours" and pixel values are
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> > truncated to 8 bits.
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> >
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> > Cheers,
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> > --Michael
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> >
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> > On 11-04-10 2:54 PM, Chris wrote:
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> > >
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> > > So Michael, if I read this right you are saying there is no way to any
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> > > sort of QuickTime out of after effects for Avid import and stay 10 bit.
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> > >
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> > > Correct?
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> > >
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> > > Wow! Is this an Adobe or Avid problem (codec)?
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> > >
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> > > Chris Magid
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> > > RTVF
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> > > Office- 214 350 7212
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> > > Cell---- 214 766 7212
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> > >
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> > > On Apr 10, 2011, at 1:56 PM, Michael Brockington <brocking@
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> > > <mailto:brocking%40sfu.ca>> wrote:
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> > >
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> > > > Hi Nigel:
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> > > >
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> > > > When I was looking into this a few months ago, Avid confirmed that
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> > > > all third-party 10-bit codecs were truncated to 8 bit on both import
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> > > and
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> > > > export. With quicktime, the only way to preserve 10 bits in and out was
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> > > > through fast-import of Avid-codec quicktimes and Same-as-source
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> > > > exports. The other option was to use 16-bit TIFF file sequences, which
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> > > > was what worked best for my circumstances. I am currently working on
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> > > > 5.0.3.x, and that release stills seems to truncate in the same way.
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> > > >
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> > > > In terms of confirming whether your export is 10-bit or not, you
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> > > > could bring your clips into After Effects and check what it reports
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> > > when
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> > > > you select the item in the footage window. It will identify 10-bit
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> > > > footage as having Trillions of Colours (vs Millions for 8-bit.)
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> > > > However, this won't show you if your footage has been truncated to 8
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> > > > bits within the 10-bit range. You would need to do some testing with
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> > > > test patterns to confirm that. The other problem with After Effects, is
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> > > > it doesn't seem to recognize Avid's 10-bit codecs (AvidPacked and
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> > > > RGBPacked) as having 10 bits, only 8. One reason why TIFF sequences
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> > > > work better for me for 10-bit file exchange.
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> > > >
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> > > > Cheers,
>
> > > > --Michael
>
> > > >
>
> > > > On 11-04-10 7:37 AM, Nigel Gourley wrote:
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> > > > >
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> > > > > So we AMA to 4:4:4 prores QT and then want to export as RGB
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> > > > > uncompressed QT.
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> > > > > This all works except I wanted to confirm it was actually a 10 bit
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> > > > > file and
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> > > > > not 8 bit. How do we do this.. We have used mediainfo usually for
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> > > > > finding a
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> > > > > file spec but while it gives bits for some formats it doesn't for
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> > > others
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> > > > > including prores..
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> > > > >
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> > > > > How can we confirm it's a 10 bit file if indeed it is?
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> > > > >
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> > > > > Thanks
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> > > > >
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> > > > > N
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