sift
代码说明：
一种基于关键点的复制粘贴检测算法，可以完成两幅图像的关键点匹配，也可以检测到一副图像是否经过复制粘贴后放大缩小、旋转等篡改操作(Key matching a replicon paste detection algorithm based on key points, you can complete two images, it can also detect whether an image after copying and pasting zoom, rotate, etc. tampering operation)
文件列表：
程序
....\20151203copy-move.docx,64535,2015-12-03
....\appendimages.m,461,2005-07-08
....\biankuang2.m,864,2015-12-07
....\display_keypoints.m,2014,2012-02-05
....\f1.m,1111,2013-06-06
....\f2.m,1640,2013-06-11
....\f3.m,618,2013-07-08
....\findHomography.m,1201,2013-06-12
....\fs.m,952,2013-06-06
....\gaussian_filter.m,277,2012-02-05
....\html
....\....\matchAB.html,7308,2015-12-07
....\match.m,2210,2015-12-02
....\ransac1.m,1053,2013-06-08
....\resizeImageFig.m,393,2012-02-05
....\sift - xiugai.m,21466,2016-02-29
....\sift.m,21268,2016-02-25
....\t2.m,1492,2015-12-01
....\test_1,39158,2015-12-04
....\ͼƬ
....\....\鸟1旋转90%2B缩放2.3.jpg,181593,2015-07-02
....\....\鸟1旋转逆时针.jpg,186388,2015-07-02
....\....\鸟1顺时针90度.jpg,184557,2015-07-02
....\....\鸟3.jpg,310704,2015-07-02
....\....\鸟3顺时针30度.jpg,113548,2015-07-02
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