Re: [Gimp-developer] Upgraded palette-sort.py plugin

["Joao S. O. Bueno" <gwidion mpc com br>]

There is no need putting this in the plug-in registry - since the
paltete sort is a plug-in in the
main GIMP tree.

Your changes are welcome improvements - and we shoudl manage to merge
them in for GIMP 2.10  -
meanwhile you could attach both your version of the plug-in and a diff
against what is
GIMP master (or gimp2.8 if you dn't have master - it had not changed)
- in a gimp bugzilla issue.

(That way, people wanting to get the newer version before gimp 210 is
out could just download it from there)


  js
 -><-


On 3 November 2012 10:33, David Gowers <00ai99 gmail com> wrote:
> Hi,
> I got tired of being unable to get any use out of the 'sort palette' plugin
> and made some major upgrades. I'm not quite ready to say this is 'done' yet
> -- it has some UI that I'm thinking about changing -- but it's fully
> functional and much more effective than the old plugin. Attached.
>
> These improvements include:
>
> * General cleanups (eg. don't use old python conventions like cmp functions)
>
> * Support for sorting by luma aka Y, S of HSL, L of HSL
>
> * If you have 'colormath' module installed, support for sorting by L of
> LAB/LCH, A of LAB, B of LAB, Chroma of LCH(ab), or Hue of LCH(ab). These are
> generally superior to their HSV/HSL/YIQ counterparts; I use them
> exclusively.
>
> * Option to sort only a selected slice of the palette (for example a color
> ramp that has become disorganized)
>
> * Option to quantize the sorting (so eg. you can sort into 6 distinct hue
> categories rather than 360.). Useful for subdividing the palette into
> sections.
>
> * Option to automatically find and sort individual 'partitions' (blocks of
> 'constant' value in a given channel, after they are quantized.), in either
> the entire palette or a selected slice of it. Useful for sorting say 16
> different categories of Hue by Lightness -- each partition's contents are
> individually sorted, so this is quite different from what you get if you
> sort first by Hue and then by Lightness (with no partitioning).
>
>
> An example of usage:
> Starting from this palette:
>
> http://i.imgur.com/CH7JF.png
>
> I first sort the entire palette by LCH hue, so that the partitioning works
> best:
>
> http://i.imgur.com/YNmt7.png
>
> Then sort by LAB with LCH Hue partitioning(granularity 16):
>
> http://i.imgur.com/DXgVW.png
>
> The result is this palette, ordered along two dimensions:
>
> http://i.imgur.com/tGPjV.png
>
>
> I would have also posted this to the Plugin Registry, but I haven't figured
> out how!
>
> Feedback is welcomed (I hope I'm still subscribed to gimp-developer ;)
>
>
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