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Copy and paste detection image block
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Image tamper detection algorithm based on copy and paste. Firstly, SIFT features are extracted by using the hybrid programming method of sift extraction provided on the Internet. Then SIFT features are matched and clustered. Then RANSAC algorithm is used to eliminate mismatching. Finally, line segments are used to connect the matching points in the original block and copy and paste block. This algorithm can resist all kinds of post-processing operations, such as rotation, scaling, adding noise and their combinations.
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