打开一幅图像，添加椒盐、高斯噪声，然后使用邻域平均法、中值滤波法、K邻近平均法进行平滑-Open an image, add salt and pepper, Gaussian noise, and then use the neighborhood average, median filter, K, close to the average method to smooth

该程序用c实现图像的噪声添加与消除等功能，比如邻域平均法，中值滤波等-Implement the program in c image noise adding and eliminate, and other functions, such as the neighborhood averaging method, median filtering, etc