角点是图像很重要的特征，对图像图形的理解和分析有很重要的作用。对灰度图像、二值图像、边缘轮廓曲线的角点检测算法进行综述，分析了相关的算法，并对各种检测算法给出了评价。(Corner is an important feature of image, which plays an important role in the understanding and analysis of image. This paper summarizes the corner detection algorithms of grayscale image, two value image and edge contour curve, analyzes the related algorithms, and evaluates all kinds of detection algorithms.)