[FFmpeg-devel] [PATCH] Add lut filter.

[Stefano Sabatini]

On date Monday 2011-06-06 15:07:35 +0200, Stefano Sabatini encoded:
> On date Monday 2011-06-06 12:25:12 +0200, Stefano Sabatini encoded:
> > On date Sunday 2011-06-05 22:31:43 +0200, Michael Niedermayer encoded:
> > > On Sat, May 28, 2011 at 11:04:07PM +0200, Stefano Sabatini wrote:
> > [...]
> > > > > From ecda1bb4846754d2a651d2c80414563d7a9e19a7 Mon Sep 17 00:00:00 2001
> > > > > From: Stefano Sabatini <stefano.sabatini-lala at poste.it>
> > > > > Date: Fri, 3 Dec 2010 12:45:29 +0100
> > > > > Subject: [PATCH] Implement lut filter.
> > > > 
> > > > Updated with RGB support and an example negate filter.
> > > > 
> > > > Still missing documentation.
> > > 
> > > patches look good except what has been already mentioned.
> > 
> > Fixed the YUV range issue spotted by Mark, and added documentation.
> > 
> > I'll apply in a few days if I see no more comments.
> > 
> > > Also support for 9/10/...bit could be added later
> > > 
> > > and great work!
> > 
> > :)
> 
> Updated with a few fixes, now that I understood why pow was not
> working I'm trying to see how I can implement a gamma correction
> filter with it...

lutyuv="y=pow((val-minval)/(maxval-minval)\,gamma)*(maxval-minval)+minval"

?
-- 
FFmpeg = Frightening and Fundamental Mind-dumbing Philosophical Extravagant Glue