设计一个MATLAB界面，用于图像处理，实现了灰度拉伸，K邻近均值滤波，FFT变换，同态滤波，边缘检测，图像分割，均衡化等-A MATLAB interface design for image processing, gray stretch, K neighboring mean filtering, FFT transform, homomorphic filtering, edge detection, image segmentation, equalization