[x264-devel] Re: Scene cuts

[Laurent Aimar]

On Sun, Aug 08, 2004, Loren Merritt wrote:
> BTW, when I was browsing Wiley's overview of the h.264 format, it metioned
> something about using a weighted sum of predictors from one or more
> previous frames. Do the weights have to sum to 1, or could that be a cheap
> way to improve prediction when fading to/from black?
 For P frame it's a afine transform (a*PixelRef +b) so yes they can
greatly improve fade in/out if you can estimate a and b.

-- 
fenrir

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