说明：  OpenCV提供了一個通用矩陣乘法的函式,cvGEMM(),代表的是GEneralized Matrix Multiplication,cvGEMM()可以處理線性代數方面許多的乘法運算,cvmMul()矩陣乘法這個函式就是從這裡來的,cvmMul()在"cvcompat.h"及"cxcore.h"這兩個函式庫被定義
(OpenCV provides a common matrix multiplication function, cvGEMM (), represents the GEneralized Matrix Multiplication, cvGEMM () can handle many aspects of linear algebra and multiplication, cvmMul () matrix multiplication of this function is from here, and cvmMul () in the " cvcompat.h" and the " cxcore.h" These two libraries are defined)