Here's what I heard back from Steve Holmes:
"For the most part if you are in 601 space you are OK or if you are in 709 color space you are OK.
It is when you convert between them and use the wrong math.
Luma is created differently in HD (709) there is a Big Space between Green and Magenta. In 601 there is not the big space.
In each color space I & Q should fall at the same places
HD Color Bars made with 601 colors will look bad on HD monitors
See attached ppt.."
I'm going to upload the ppt. to the files section.
--- In Avid-L2@yahoogroups.com, "johnrobmoore" <bigfish@...> wrote:
>
> IIRC from one of the Tektronix seminairs there was a subtle difference between SD bars and HD bars is that was is off about the I and Q? I'll have to email Steve Holmes at Tek to be reminded about the difference.
>
> --- In Avid-L2@yahoogroups.com, Roger <rogershuff@> wrote:
> >
> > London calling (well, Dorset, UK) - I haven't come across the abbreviation ARIB. ? American RGB International Bars? Interested to find out.
> >
> > On 30 May 2012, at 20:55, Mark Spano wrote:
> >
> > > ARIB Bars uploaded to the Files section.
> > >
> > > Added benefit of using these is that they can be perfectly usable for SD as
> > > well by center-cutting.
> > >
> > >
> > > On Wed, May 30, 2012 at 3:40 PM, Job ter Burg (L2B) <Job_L2@>wrote:
> > >
> > >> **
> > >>
> > >>
> > >>
> > >> Making films, I would hope.
> > >>
> > >> And https://twitter.com/#!/buercher and https://twitter.com/#!/artfilmch
> > >>
> > >>
> > >> On 30 mei 2012, at 21:24, bouke wrote:
> > >>
> > >>> Speaking off, (and not the first time i've asked)
> > >>> Where is Matthias?
> > >>
> > >>
> > >>
> > >
> > >
> > > [Non-text portions of this message have been removed]
> > >
> > >
> > >
> > > ------------------------------------
> > >
> > > Search the official Complete Avid-L archives at: http://archives.bengrosser.com/avid/
> > > Yahoo! Groups Links
> > >
> > >
> > >
> >
> > With best wishes,
> > Roger Shufflebottom
> > +44 7973 543 660
> >
> >
> >
> >
> >
> > [Non-text portions of this message have been removed]
> >
>
No comments:
Post a Comment