算法代码，分别提取两类不同的特征。关于这些算法的说明，可参见第8章的相关章节。 使用时直接将代码拷贝到需要使用的地方即可。代码片断在Visual C++6.0下可编译。-Algorithm code, were extracted from two different characteristics. On the descr iption of these algorithms can be found in Chapter 8 of the relevant sections. When