Palletizing Efficiently

So, this is how I usually palletize, in a filter:



The script in there basically grabs all the hue inputs, and sorts them, based on their grey value, and then distributes the bands properly across the gradient output. When the resulting gradient is pushed into the elevation gradient component containing the picture's original hue profile, it reassigns the picture's hues to the proper gradient bands (i.e. the proper color buckets).

What I want to know is: Is there a better way to do this? Also, is there a good way to replace my script with components, without it turning into a huge, monstrous beast? Recently, the script became much more hideous, because I can no longer pre-process my input hue samples in the "prepare" function (and I don't want to switch them to less user-friendly hue-sliders... and I can't think of any way to convert sample inputs down to scalar inputs).

I'm not sure I was sufficiently clear about what I'm trying to do.

Hopefully, this image will clarify:



To reiterate: I am replacing the original hue with the nearest hue out of the user-supplied palette.

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My palette snippet does something like this. You choose some colors, and the filter finds colors in the image that are similar to each of your colors (not just hue), and then the filter forces these similar colors to be exactly the colors you chose. You can also choose how similar is "similar" via thresholds and smoothness controls.

Thanks, Indigo. I'll have a look, when I have a few minutes!

OK, I see what you're doing, Indigo! Use of Difference is pretty clever there, I must say. I think that, for my current purposes, mine is probably providing a result that is closer to what I need, but I think I want to experiment with some of the ideas in your filter a bit, because it interests me.

That's part of the fun with Filter Forge -- sharing ideas!

Well, here's my mod of my filter (as seen in the above image).

Sphinx's filter is so cool! It works with images too!

We could even make a color swapper that, for example, finds all the reds and replaces them with purples while leaving the other colors untouched.

appetizing palletizing.ffxml