[FFmpeg-devel] [PATCH] doc/filters: add quick emboss example

[Stefano Sabatini]

On date Thursday 2013-04-11 18:28:50 +0000, Paul B Mahol encoded:
> Signed-off-by: Paul B Mahol <onemda at gmail.com>
> ---
>  doc/filters.texi | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/doc/filters.texi b/doc/filters.texi
> index 3438308..c5c5d2a 100644
> --- a/doc/filters.texi
> +++ b/doc/filters.texi
> @@ -3414,6 +3414,12 @@ Generate a fancy enigmatic moving light:
>  @example
>  nullsrc=s=256x256,geq=random(1)/hypot(X-cos(N*0.07)*W/2-W/2\,Y-sin(N*0.09)*H/2-H/2)^2*1000000*sin(N*0.02):128:128
>  @end example
> +
> + at item
> +Generate a quick emboss efect:

effect

> + at example
> +format=gray,geq=lum_expr='(p(X,Y)+(256-p(X-4,Y-4)))/2'
> + at end example
>  @end itemize

LGTM and thanks.
-- 
FFmpeg = Furious and Foolish Minimal Perfectionist Elitist Guru