THis is a presentation on Viola Joans Method and SIFT method introduced by David.G.Lowe

本代码是用来检测图像的局部不变特征的，主要参考DAVID G. LOWE的sift的论文。变成工具是matlab。-This code is used to detect the image of local invariant features, the main reference DAVID G. Lowe s sift paper. Become a tool is Matlab.

%this code is the Matlab implimentation of David G. Lowe, %"Distinctive image features from scale-invariant keypoints," %International Journal of Computer Vision, 60, 2 (2004), pp. 91-110. %this code should be used only for academic res