Re: [Gimp-developer] Purple fringing removal extension

[Alexandre Prokoudine <alexandre prokoudine gmail com>]

On Sat, Jul 14, 2012 at 12:35 PM, Martin Jambon wrote:
> Hi,
>
> I am totally new here but I wrote a standalone program that does a
> decent job of removing purple fringing from photos, and I would like to
> be able to implement the same functionality for Gimp.
>
> Here are some examples of what it does:
>
>   http://mjambon.com/purple-fringe/examples.html
>
> My algorithm needs to perform pixelwise operations (+, -, min, max
> between two channels; scaling of one channel) but I also would prefer
> something that is easy to install (for users) and easy to maintain (for me).
>
> The OCaml source code is here; it should give an idea of what's needed:
>
>   https://github.com/mjambon/purple-fringe/blob/master/src/unpurple.ml
>
> (see functions make_purple_blur and remove_purple_blur, lines 103-177)
>
>
> My questions are:
>
> 1. Is it possible to do that using a Gimp script?
>
> 2. If so, Scheme or Python?
>
> 3. If a plugin makes more sense, will average users be able to install
> it for themselves or would I have to wait for the inclusion in some
> standard precompiled distribution?

Just in case, are you aware of http://kcd.sourceforge.net/fix-ca.php ?

Alexandre Prokoudine
http://libregraphicsworld.org