说明：  该gui函数基本上包括图像处理里面的最基本处理，相当于一个小型photoshop。比如读取文件，几何变换中的垂直镜像，平移，旋转，缩放；正交变换的DFT，FFT，DCT，DST，DHT，DWashT；灰度处理中的反色，直方图均衡，全局线性变换，分段线性变换，指数非线性变换，对数非线性变换；图像增强里面的加噪声，平滑，锐化，伪彩色增强；图像分割里面的灰度阈值法，Robert，Laplace，sobel，prewitt，canny算子边缘检测法；图像恢复里面的直接逆滤波，维纳滤波；图像编码里面的霍夫曼编码，行程编码等等
(The GUI function basically includes the most basic processing in image processing, which is equivalent to a small Photoshop. Such as reading files, vertical mirror image, translation, rotation, scaling in geometric transformation; DFT, FFT, DCT, DST, DHT, dwasht of orthogonal transformation; inverse color, histogram equalization, global linear transformation, piecewise linear transformation, exponential nonlinear transformation, logarithmic nonlinear transformation in gray processing; adding noise, smoothing, sharpening, pseudo color enhancement in image enhancement; image segmentation Gray threshold method in cut, Robert, Laplace, Sobel, Prewitt, Canny operator edge detection method; direct inverse filter, Wiener filter in image restoration; Hoffmann code, run length coding in image coding, etc)