hm, tak som sa trosku hrabal a:
k dotazu
polopatisticke priklady [aj ta obloha] http://en.wikipedia.org/wiki/Filter_(photography)
jasny priklad na sklo http://www.pbase.com/dovey/polarize

a ceresnicka, som sa zabavil s touto aplikaciou - normalne to simuluje kodak filtre http://www.mediachance.com/digicam/filtersim.htm
tu su nejake tabulky o tych filtroch nech to nemusite hladat
http://www.kodak.com/US/en/motion/products/wratten/basic.jhtml?id=0.1.4.30.6&lc=en
http://www.kodak.com/US/en/motion/products/wratten/specialDye.jhtml?id=0.1.4.30.8&lc=en
http://www.kodak.com/US/en/motion/products/wratten/lightBalance.jhtml?id=0.1.4.30.14&lc=en
http://www.kodak.com/US/en/motion/products/wratten/colorConvert.jhtml?id=0.1.4.30.10&lc=en
http://www.kodak.com/US/en/motion/products/wratten/infrared.jhtml?id=0.1.4.30.16&lc=en