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Open AccessArticle

An Image Copy-Move Forgery Detection Scheme Based on A-KAZE and SURF Features

School of Mechanical, Electrical and Information Engineering, Shandong University, Weihai 264209, China
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Symmetry 2018, 10(12), 706; https://doi.org/10.3390/sym10120706
Received: 3 October 2018 / Revised: 27 November 2018 / Accepted: 28 November 2018 / Published: 3 December 2018
(This article belongs to the Special Issue Emerging Data Hiding Systems in Image Communications)
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Abstract

The popularity of image editing software has made it increasingly easy to alter the content of images. These alterations threaten the authenticity and integrity of images, causing misjudgments and possibly even affecting social stability. The copy-move technique is one of the most commonly used approaches for manipulating images. As a defense, the image forensics technique has become popular for judging whether a picture has been tampered with via copy-move, splicing, or other forgery techniques. In this paper, a scheme based on accelerated-KAZE (A-KAZE) and speeded-up robust features (SURF) is proposed for image copy-move forgery detection (CMFD). It is difficult for most keypoint-based CMFD methods to obtain sufficient points in smooth regions. To remedy this defect, the response thresholds for the A-KAZE and SURF feature detection stages are set to small values in the proposed method. In addition, a new correlation coefficient map is presented, in which the duplicated regions are demarcated, combining filtering and mathematical morphology operations. Numerous experiments are conducted to demonstrate the effectiveness of the proposed method in searching for duplicated regions and its robustness against distortions and post-processing techniques, such as noise addition, rotation, scaling, image blurring, joint photographic expert group (JPEG) compression, and hybrid image manipulation. The experimental results demonstrate that the performance of the proposed scheme is superior to that of other tested CMFD methods. View Full-Text
Keywords: image forensics; copy-move forgery detection (CMFD); accelerated-KAZE (A-KAZE) feature; speeded-up robust features (SURF) image forensics; copy-move forgery detection (CMFD); accelerated-KAZE (A-KAZE) feature; speeded-up robust features (SURF)
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
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Wang, C.; Zhang, Z.; Zhou, X. An Image Copy-Move Forgery Detection Scheme Based on A-KAZE and SURF Features. Symmetry 2018, 10, 706.

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