tianny99:Based on the white color-coordinate(x,y), we can obtain a factor of n firstly,
Ajr]&H4 n=(x-0.3320)/(0.1858-y),
tEf_XBjKV then, we can calculate CCT(Correlated Color Temperature) as following,
@O5-w CCT=437*n^3+3601*n^2+6831*n+5517
(2008-07-22 16:05) bg*4Z?[dd