说明：  一：RS 程序： 开发工具：IDL8.2 操作系统：Windows8.1 功能说明：主体功能为影像处理 1：显示影像 2：图像平滑 采用的是中值平滑，选择的窗口为3X3 3：图像滤波 采用的是均值滤波，选择的窗口大小为[3X3] 4：绘制直方图 横坐标为波长，纵坐标为DN值 5：影像分类 影像分类自己写的函数没有实现，最后的方法是直接调用了envi
(A: RS program: Development Tools: IDL8.2 Operating Systems: Windows8.1 Function: the main function of image processing 1: Display the image 2: image smoothing is used in the smoothing value, the selected window is 3X3 3: The image filter mean filter is used to the window size [3X3] 4: Draw histogram abscissa is the wavelength, the vertical axis is the DN value 5: image classification image classification write their own functions not achieved, the final method is to call the envi)