On analyzing the characteristic of tobacco leaves,KL transform is performed on tobacco leaf signals to remove the correlation between each signal element.

• 在分析烟叶特性的基础上,对烟叶三基色信号进行KL变换,消除烟叶信号各元素之间的相关性,经过量化编码后,重新建立烟叶信号的三维阈值空间。