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List:       theora
Subject:    Re: [theora] thank you
From:       xiphmont () xiph ! org
Date:       2009-08-11 22:33:22
Message-ID: 806dafc20908111533g68da2098h405e479793a7a658 () mail ! gmail ! com
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> Sorry, I'm not familiar with "--grain" so I can't speak to the
> prospects of adding it. Can you point me to a web page describing it?

Essentially adding an artificial dither or quantizer-based noise.  It
looks alot like grain noise in film and hides alot of the DCTs
quantization artifacts.  You can see it in the low-intensity areas on
most DVDs for instance.  The matrix test clip has it.

No, there's no 'grain' option in libTheora at the moment.

Monty
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