实现k-l变换，代码短，效率高，适合初学者进行上机练习，原理简单，比较容易懂和实现。-Achieve kl transformation, the code short, high efficiency, suitable for beginners to practice on the machine, simple in principle, relatively easy to understand and achieve.

这是一重要的图像变换源代码，基于KLT变换的程序（1）-KLT transformation