tianny99:Based on the white color-coordinate(x,y), we can obtain a factor of n firstly,
F$tzsz,9n n=(x-0.3320)/(0.1858-y),
z@3gNY&7.8 then, we can calculate CCT(Correlated Color Temperature) as following,
>;,23X CCT=437*n^3+3601*n^2+6831*n+5517
(2008-07-22 16:05) :?zq!