Re: gsoc2010: a collection of filters for GEGL

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On Sun, Apr 4, 2010 at 11:54 AM, Danny Robson <danny@xxxxxxxxxxx> wrote:
> Hi all,
>
> I am a PhD candidate at the Australian National University, currently
> creating and evaluating performance profiling tools for NUMA systems.
> I have always had an interest in the realm of graphics, though I have
> only managed minor patches for GEGL/BABL in the past.
>
> As the deadline for gsoc2010 applications is far too rapidly
> approaching, I was curious about thoughts on another alternative
> proposal: implementing a collection or series of related filters.
>
> I have a selection of ideas which I have briefly investigated, and may
> be of interest:
>
> 1. While GEGL has excellent support for high depth colour spaces, there
> are few examples of filters which take advantage of this explicitly. I
> would be interested in implementing (or porting) a collection of tone
> mapping operators as native GEGL filters.
This leads me to wonder what kind of operation the GEGL 'tone-map' op
currently performs.


>
> 2. Image matting techniques with trimaps, such as the closed form of
> Levin et. al., have very interesting applications for end users. I
> would be interested in implementing one such technique and further
> filters applying it (such as haze removal and spatially varying white
> balance).
>
> 3. The matting of #2 could segue nicely into an implementation of image
> completion/inpainting (which is receiving more public exposure due to
> similar techniques in the upcoming Adobe CS5).

GMIC and Resynthesizer already do this.
Perhaps they could do it faster or better.

>
> I'm not quite clear on the level of complexity required for a gsoc
> proposal so I have left the extent and combination of ideas open.
> I would be open to further suggestions for this style of proposal, and
> shall use any input for a more concrete proposal if there is interest.
>
> I'll try to catch some people on IRC (under the nick 'eNGIMa') to
> discuss the idea's desirability.
>
> Many thanks for your consideration,
> - Danny Robson
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