对图像的打开，保存，关闭。平滑处理，加噪去噪处理，灰度处理，几何处理，边缘提取，快速傅里叶变换，截图等等。-To open the image, save, close. Smoothing, noise denoising, gray scale processing, geometry processing, edge detection, fast Fourier transform, screenshots and more.