说明：  利用matlab的GUI程序设计一个简单实用的图像处理程序。该程序应具备图像处理的常用功能，以满足用户的使用。现设计程序有以下基本功能： 1）图像的读取和保存。 2）设计图形用户界面，让用户能够对图像进行任意的亮度和对比度变化调整，显示和对比变换前后的图像。 3）设计图形用户界面，让用户能够用鼠标选取图像感兴趣区域，显示和保存该选择区域。 4）编写程序通过最近邻插值和双线性插值等算法将用户所选取的图像区域进行放大和缩小整数倍的操作，并保存，比较几种插值的效果。 5）图像直方图统计和直方图均衡，要求显示直方图统计，比较直方图均衡后的效果。 6）能对图像加入各种噪声，并通过几种滤波算法实现去噪并显示结果。 7）额外功能。
(Using matlab GUI program to design a simple and practical image processing program. The program should have a common image processing capabilities to meet user. Programs are designed to have the following basic functions: 1) read and save the image. 2) design of graphical user interface, allowing users to be able to image any changes to adjust brightness and contrast, display, and transform images before and after contrast. 3) design of graphical user interface that enables users to use the mouse to select a region of interest image, display and save the selection area. 4) Write a program through the nearest neighbor interpolation and bilinear interpolation algorithm selected by the user to zoom in and zoom out image areas integer multiple of the operation, and save, compare several interpolation results. 5) image histogram and histogram equalization, histogram display required to compare the effect after histogram equalization. 6) can add a variety of image noise, and through se)