金相图片颗粒边界的提取及合并图片内容和边界信息-Metallography grain boundary extraction and merging picture content and boundary information

逐步订正法，给定初始5个值，在7*7区域上的迭代。每次迭代逐步缩影响半径。-Step correcting, given initial five values, iterate over 7* 7 area. Each iteration gradually reduced radius of influence.

.通过MATLAB软件写出用逐次超松弛迭代法解线性方程组的程序并运行结果。(MATLAB software is used to write the program for solving linear equations by successive over relaxation iteration method and its running results)