中文说明： 通过sift算法提取特征点，匹配数字图像复制粘贴篡改区域，并用线段把原区域和篡改区域连接起来，达到盲检测的效果。用于数字图像区域复制粘贴盲检测研究。
English Description：
SIFT algorithm is used to extract the feature points, match the digital image, copy and paste the tampered area, and connect the original area with the tampered area with line segments, so as to achieve the effect of blind detection. It is used for blind detection of digital image region copy and paste.