[MPlayer-users] gamma ajustment with mencoder

[Jan Knutar]

On Tuesday 10 September 2002 21:16, you wrote:

> al      autolevels                              automatic brightness
> / contrast f       fullyrange      stretch luminance to (0..255)
>
> I tried various combination like shown below, but I can't find the
> right syntax it expects.
>
> -npp f:8:255
> -npp f=8..255
> -npp f:8..255
> -npp f:8,255

I thought it explicitly meant "al:f" with no number where f is, but 
just the letter f there, and that that would stretch luminance over 0 - 
255....