tianny99:Based on the white color-coordinate(x,y), we can obtain a factor of n firstly,
! (lF#MG} n=(x-0.3320)/(0.1858-y),
@_"cMU! then, we can calculate CCT(Correlated Color Temperature) as following,
'^m'r+B" CCT=437*n^3+3601*n^2+6831*n+5517
(2008-07-22 16:05)
dH5*%