例如R通道的处理公式
Rmin = min{l/hR(l) ≥ I *J *T d% },
Rmax = max{l/hR(l) ≥ I *J *T d%  },
F'R ( i, j )= FR ( i, j )-  Rm in ,FR ( i, j ) ≤ Rmax
              Rmax - Rm in , FR ( i, j ) > Rmax
我不会用matlab来实现