DFT.m:计算一幅图像的DFT，并在屏幕上显示频谱图，将频谱原点移到图像中间。

zhifangtu.m：用直方图均衡算法对一幅图像进行增强。

fenge.m：设计一种算法自动从灰度图像上求得全局分割阈值，将一幅图像中的目标和背景分隔开，使这幅图像的目标和背景有着不同的平均灰度。

gongshengjuzhen.m:求出一幅图像的像素和有下一个像素的共生矩阵。

OpenAndClose.m：实现二值形态学的膨胀、腐蚀、开操作、闭操作。-DFT.m: Calculates the DFT of an image and displays the spectrum on the screen, moving the spectral origin to the center of the image.

Zhifangtu.m: A histogram equalization algorithm for an image enhancement.

Fenge.m: design an algorithm automatically　the grayscale image to obtain the global segmentation threshold, an image of the target and the background is separated, so that the image of the target and the background has a different average gray.

Gongshengjuzhen.m: Find the co-occurrence matrix of an image pixel and the next pixel.

OpenAndClose.m: Binary morphology to achieve the expansion, corrosion, open operation, closed operation.