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Article type: Research Article
Authors: Zhu, Nan; * | Yin, Yuting
Affiliations: Department of Electronic Information Engineering, Xi’an Technological University, Xi’an, China
Correspondence: [*] Corresponding author. Nan Zhu, Department of Electronic Information Engineering, Xi’an Technological University, Xi’an 710021, China. E-mail: nanzhu.xatu@foxmail.com.
Abstract: With the great development of image display technologies and the widespread use of various image acquisition device, recapturing high-quality images from high-fidelity LCD (liquid crystal display) screens becomes relatively convenient. These recaptured images pose serious threats on image forensic technologies and bio-authentication systems. In order to prevent the security loophole of image recapture attack, we propose a recaptured image detection method based on multi-resolution residual-based correlation coefficients. Specifically, we first classify the divided image blocks into three categories according to their content complexity. Then, for each classified block, sharpness degree is used as metric to select the local representative block. Finally, pixel-wise correlation coefficients in the residual of the local representative blocks are adopted as features for training and testing. Single database experiments demonstrate that our proposed method not only performs very close to the state-of-the-art methods on relative low-quality NTU-ROSE and BJTU-IIS databases, but also improves the performance on the most difficult-to-detect ICL-COMMSP database obviously, which verifies the effectiveness of the proposed multi-resolution strategy and the used residual-based correlation coefficients. Besides, mixed database experiments verify the superiority of the generalization ability of our proposed method. Moreover, it is robust to JPEG compression.
Keywords: Image forensics, recaptured image detection, image credibility, bio-authentication, correlation coefficients
DOI: 10.3233/JIFS-201746
Journal: Journal of Intelligent & Fuzzy Systems, vol. 40, no. 3, pp. 5001-5013, 2021
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