摘要...........................................................................................................................1
Abstract .....................................................................................................................2
1 数据采集...............................................................................................................3
1.1 图像的选取.................................................................................................3
1.2 MATLAB读取方法 ...................................................................................4
1.2.1 编辑 M 文件 ...................................................................................4
1.2.2 图像的读取.....................................................................................4
1.2.3 查看图像的格式..............................................................................6
1.2.4 灰度值的获取.................................................................................7
2 数据统计处理.......................................................................................................8
2.1 均值计算....................................................................................................8
2.1.1 原理及计算公式.............................................................................8
2.1.2 计算程序及结果.............................................................................9
2.2 各像素点灰度值的标准差........................................................................9
2.3 各像素点灰度值的方差..........................................................................10
2.4 灰度直方图.............................................................................................. 11
3.傅立叶变化..........................................................................................................13
3.1 原理及计算公式......................................................................................13
3.2 变换及逆变换程序及结果......................................................................14
3.3 对变换后的图像的说明...........................................................................16
4.总结（心得体会）..............................................................................................17
5.参考文献..............................................................................................................18
