[Tig] Preventing banding artifacts

David Mackenzie lyris1 at gmail.com
Fri Oct 23 03:06:33 BST 2015

Hi Rogerio
I face a similar issue with 10-bit masters going to 8-bit Blu-ray, and as
you mentioned, the solution is to add dither. However, this can be
challenging to do at BD bitrates (up to 40mbps) with adjustable software
encoding, so I imagine for real time broadcast encoding you're out of
options. Happy to be proven wrong though!

On Thu, Oct 22, 2015 at 9:54 PM, Rogério Moraes <tig at colorist.org> wrote:

> Sohonet www.sohonet.co.uk sponsors the TIG.
> =====
> Hello all
>  I'm trying to come up with solutions for this. I'm seeing a lot of banding
> artifacts on y when on air. Although we always output 10 bit prores minimum
> to all of our jobs, there's no way to forsee how that is going to be
> treated by the channel or network I think they all broadcast to 8 bit? Is
> that a plague with TVs or computer screens?. Frustating enough, we master
> thngs to be pristine only to see the all too familiar blooming onion on
> air. I try to minimize this by adding a very fine grain but it has
>  drawback, mostly because adding this to all jobs seems impractical.. Is
> there a definitive or another solution for this? Any ideias?
> Thanks for the input
> --
> Rogério Moraes
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David Mackenzie
DVD / Blu-ray Compression & Authoring
AV Calibration and Consulting
ISF Certified Calibrator

US: +1 914-902-8928
UK: +44 (0) 203-239-6816

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