I made a new plugin. It's actually a port of Trevs VDub filter Colorlooks and Graft's Colorize (well it works a bit similar). I also added some new stuff. The plugin contains the following filters:
Technicolor(clip, channel="R") # default values gives technicolor effect
channel="R","G","B"
requires RGB
Colorize(clip, color=0x896c8d, scale=false)
requires YUV
Sepia(clip, color=0x896c8d, mode="triangular") # default values gives the Sepia effect
mode="triangular" (applies color to mid-tones), "linear" (applies color to high-tones)
requires YUV
Posterize(clip, pbits=8)
requires RGB/YUY2 (YV12 will follow later)
1) You should use yuv values for color. I will change that later.
2) Technicolor is not good yet. It works in VDub, but not in WMP (due to lookup tables).
3) Docs will be added when i'm back from holidays.
http://www.wilbertdijkhof.com/ColorLooks_v13.zip
So, have fun. I will be on holidays for a week, so i will reply any replies after that.
edit: corrected link