Le 26/12/2011 11:18, Gilles Caulier a écrit : > Please, provide some samples for analyse. Place images on the web... mu 91 years old mother :-) http://dodin.org/temp/ch.jpg Marie-Noëlle hint let me think that a color temp around 9000 gives a good result. May be you have a better idea? tanks jdd -- http://www.dodin.net