苏三算法,查找图像的边缘及角点检测，很实用，比起C++代码简单易懂-susan arithmetic

经典的OSTU的算法，实现对图像阈值的查找并对图像进行二值化分割显示-OSTU classic algorithms, to achieve the threshold on the image search and image segmentation show binarization

SIFT算法是在不同的尺度空间上查找关键点,而尺度空间的获取需要使用高斯模糊来实现,Lindeberg等人已证明高斯卷积核是实现尺度变换的唯一变换核-SIFT algorithm is to find the key points on the different scales of space and capture scale space requires the use of a Gaussian blur to achieve, Lindeberg, who has proved a G