Hi,

I've put a draft of the Filter Effects chapter for an update to my book at:

http://tavmjong.free.fr/INKSCAPE/MANUAL/html/Filters_0.46.html

Hopefully this will generate some interest in using the filters and result in better testing. And it would be great if it motivated somebody to complete the Image filter primitive which would be very useful.

If you are interested in comparing Inkscape rendering to your favorite browser's rendering, you can find web pages with Inkscape png and svg files starting at:

http://tavmjong.free.fr/INKSCAPE/MANUAL/images/FILTERS/index.xml

Happy Filtering,

Tav