averaging
v0.1; caminoix; 10.07.2006
v0.2; caminoix; 03.09.2006
download source | binary

averaging is a very simple plugin yet with pretty nice results.
all it does is changing the colour of each pixel to the average of colours of the surrounding 8 pixels, optionally including the pixel itself. it's as simple as that but see the results are really not bad.