tianny99:Based on the white color-coordinate(x,y), we can obtain a factor of n firstly,
.s31D%N n=(x-0.3320)/(0.1858-y),
.3Nd[+[ then, we can calculate CCT(Correlated Color Temperature) as following,
YV*s1t/ CCT=437*n^3+3601*n^2+6831*n+5517
(2008-07-22 16:05)
RQI? \?o