可以实现将本地图片上传至窗口并能放置在窗口中央，使用SIFT算法将图片的信息提取到txt文档中-Can realize local pictures will be uploaded to the window and can be put in the window, SIFT algorithm using the picture, information extraction to TXT documents of

经典的sift算法实现，利用简单的VC2005环境加上Opencv库，实现图像的特征点查找，并显示出图像的异同处-Classic sift algorithm, using simple VC2005 environment and Opencv library, find the feature points of the image, and display the image at the similarities and differences