Ernst Dinkla wrote:
What factors are considered in the creation of an FBA algorithm is unknown to me but looking at spectral curves of FBA containing papers I would think it can not be as simple as a negative b in Lab value. If the absorption of UV is considered as well then another effect should be taken care of. The excellent TiO2 whitening agent, not an FBA as we know
I detailed how it works in my 2003 CIC paper: <http://www.imaging.org/IST/store/epub.cfm?abstrid=22190> I can send you a copy if you are interested. Graeme Gill.