遥感影像的分块程序，调用opencv和openssl，在实现切块的同时计算每块的哈希值，哈希算法采用MD5，分块数量可以通过更改宏定义设定- remote sensing picture cutting program based on opencv and openssl，which can also calculate the file hash with MD5

openssl开发所依赖的动态库和头文件-openssl development depends on dynamic libraries and header files