Journal
2012 INTERNATIONAL CONFERENCE ON INDUSTRIAL CONTROL AND ELECTRONICS ENGINEERING (ICICEE)
Volume -, Issue -, Pages 1773-1776Publisher
IEEE COMPUTER SOC
DOI: 10.1109/ICICEE.2012.469
Keywords
Image forgery detection; Copy forgery; SIFT; LPP
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Copy forgery is the most commonly used operation of image forgery. This paper describes a new method based on LPP-SIFT(Locality Preserving Projection-Scale Invariant Feature Transform) features for image forgery detection. The algorithm first extracts SIFT keypoints of an image, and then combines LPP to obtain low-dimensional feature descriptors, the final stage is the keypoints matching. Each pair of matched keypoints of the image are marked with lines between them. If the image has undergone copy-forged operation, these lines will obviously concentrate upon two regions. Experiments demonstrate that the proposed approach is efficient for copy operation and other post-processing forgeries, such as rotation, scaling, and retouching.
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