中文说明：这个程序能够很好地实验三维图像的配准，互信息作为相似性测度的方法。里面还有二维的demons配准算法，仿射变换，刚性配准算法。
English Description：
This program is able to test three dimensional image registration, mutual information as a method of similarity measure. There are demons registration algorithm for two dimensional and affine transformations, rigid registration method.