256 转换为灰度图像的代码，数据结构， 使用vc＋＋开发-256 converted to grayscale images of code, data structure, use vc + +

本程序是将普通图片转化为灰度图片，从而提取其灰度矩阵。以及几篇数字散斑相关方法的数学理论，介绍了当前主流的几种搜索方法。-This procedure is the general picture is converted to grayscale image, thereby extracting its grayscale matrix. And several mathematical theory of digital speckle correlation method