On Mon, 22 Jul 2002, Richard Rauch wrote:

> > > > If you have the cycles to spare, you can get a very smooth picture
> > > > from "mplayer" by applying the post-processing filters, e.g. "mplayer
> > > > -vop pp -npp de".

> I mean color-banding.  E.g., a person leans forward, and you can see a
> bright center and sharp boundaries down to the next lower color on his
> clothes.

> Without the postprocessing, the surface looks smooth.
>
> I assume that the "de" option is for "despeckle" (it doesn't seem to be
> documented in the man-page, and I haven't checked the other documentation
> for it).  If it smoothes out the colors, then that would explain the
> banding that I see on my display.  (The "speckles" would give a
> dithering/shading effect.)

The "de" stands for "default". It's in the examples for "-npp" in
mplayer(1), also with "mplayer -npp help".

Frederick