make the optimization works with both 4 and 3 parameters
make the optimization works with both 4 and 3 parameters

MISS3D/s2p,MISS3D/s2p,jmichel-otb/s2p,mnhrdt/s2p,MISS3D/s2p,dyoussef/s2p,dyoussef/s2p,dyoussef/s2p,dyoussef/s2p,jmichel-otb/s2p,carlodef/s2p,MISS3D/s2p,jmichel-otb/s2p,mnhrdt/s2p,jmichel-otb/s2p,carlodef/s2p