New Compositing Nodes: Vibrance, HCL, Pixelize, Posterize, ToonAA
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Description

This patch adds a few compositing nodes :

Vibrance:
Increases the saturation but prevents clipping and oversaturation.
Video: http://frederic.vanderessen.com/videos/node-vibrance.ogv

Hue Chroma Luminance:
Adds a Hue Chroma Luminance control,separation,combination nodes.
The HCL Colorspace is similar in spirit to the HSV, but is based on the Lab Colorspace, giving more natural results.
Video: http://frederic.vanderessen.com/videos/node-hcl.ogv

Pixelize:
Pixelizes the picture. The size of the blocks and the method used to pick the
blocks colors can be changed.
Video: http://frederic.vanderessen.com/videos/node-pixelize.ogv

Posterize:
Reduces the number of colors in the picture. Similar to Gimp's posterize filter.

ToonAA:
Anti-Aliasing filter for pictures with a small number of colors. Based on the EPX pixel art upscaling algorithm.

Details

Type
Patch

New patch makes the 'fac' of 'Pixelize' work as intended

New patch Frees a CompBuf in Pixelize.

Hi, had a look over you're videos and some comets (note that Im not a compositor!)

- Vibrance: seems generally useful though while looking at this I was thinking perhaps a saturation curve could be used for the same purpose and give more control?

- Hue Chroma Luminance: +1, looks very useful, perhaps could be made an option for HSV, not sure about that though.

- Pixelize: Don't have a strong opinion on this, Could be useful - why not have it :)

- Posterize: Math -> Round can be used for this, but I didnt compare with you're implementation.


I think it'd be good if you mailed the BF-committers mailing list about the patches you've been working on, sure many people there would be interested.

http://lists.blender.org/mailman/listinfo/bf-committers

ah, I see you already posted :)

There are some useful nodes indeed. But the thing is -- they're for old compositor :)

Will port them to new compositor and then commit tho.

thanks sergey for going through old patches, some diamonds are to be found there :)