基于opencv的sift图像拼接算法，是特征匹配的一种，具有旋转、平移、遮蔽以及仿射不变形，广泛应用于图像拼接及图像特征匹配中-Based on the opencv sift image stitching algorithm, is a feature matching, rotation, translation, masking and affine deformation, is widely used in image stitching and image feature mat