Øyvind Kolås wrote:
http://pippin.gimp.org/tmp/despeckle_adaptive_non_recursive_radius_1_black_level_0_white_level_256.png.html
might be similar to what you want (note that I have run it on the jpeg version of your original.) running with a radius of 1.
/pippin
I was careless and did not realize the jpeg will make such a big difference. I replaced the original on my page with a png file, which you can grab if you wish and see the problem for real.
While your settings are definitely better, personally I find the result not good enough. And as I mentioned, the speed of the plugin is a big deterrent as well.
-Joseph