[MPlayer-users] Mencoder: Dark, Gray, Low complexity areas for TFT

[Nico]

Hans Fuchs wrote:

> Hello
>
> I'm trying to increase quality in dark, gray, low complexity areas of 
> the picture. I'm using libavcodec.
>
> These areas of the picture are blocky and noisy. I had the idea of 
> raising quantizer for bright, complex areas and using "naq": Which 
> would result in lower quantizer in the problem areas:
>
> lumi_mask=0.3:tcplx_mask=0.3:scplx_mask=0.3:naq
>
> This gave just some partial improvement. Really dark, and very low 
> complexity areas are better. But a noisy gray is still very bad.
>
> Has anyone experience? Is there a better way?
>
> Best,
>     Hans
>

For my encodes using -vf eq=1,yuvcsp helps a lot, but doesn't totally 
remove the problem.