Comment 11 for bug 180693

Thanks for your filter, Pierre. This aliviates the problem somewhat, although there doesn't seem to be a lot of difference since this adds a turbulence overlaid on the object. What I'm looking for is something like what it's done in pixel art: http://www.rjanes.co.uk/images/tutorials/introduction/Tutorial1-Dithering1x4.png.

I'm not a filter guru, could your filter be a bit more like the example?