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Article

A Detection Method of Operated Fake-Images Using Robust Hashing

Department of Computer Science, Tokyo Metropolitan University, 6-6 Asahigaoka, Tokyo 191-0065, Japan
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Author to whom correspondence should be addressed.
Academic Editors: Shoko Imaizumi and Raimondo Schettini
J. Imaging 2021, 7(8), 134; https://doi.org/10.3390/jimaging7080134
Received: 17 May 2021 / Revised: 29 July 2021 / Accepted: 30 July 2021 / Published: 5 August 2021
(This article belongs to the Special Issue Intelligent Media Processing)
SNS providers are known to carry out the recompression and resizing of uploaded images, but most conventional methods for detecting fake images/tampered images are not robust enough against such operations. In this paper, we propose a novel method for detecting fake images, including distortion caused by image operations such as image compression and resizing. We select a robust hashing method, which retrieves images similar to a query image, for fake-image/tampered-image detection, and hash values extracted from both reference and query images are used to robustly detect fake-images for the first time. If there is an original hash code from a reference image for comparison, the proposed method can more robustly detect fake images than conventional methods. One of the practical applications of this method is to monitor images, including synthetic ones sold by a company. In experiments, the proposed fake-image detection is demonstrated to outperform state-of-the-art methods under the use of various datasets including fake images generated with GANs. View Full-Text
Keywords: fake images; GAN; robust hashing; tamper detection; synthetic media fake images; GAN; robust hashing; tamper detection; synthetic media
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MDPI and ACS Style

Tanaka, M.; Shiota, S.; Kiya, H. A Detection Method of Operated Fake-Images Using Robust Hashing. J. Imaging 2021, 7, 134. https://doi.org/10.3390/jimaging7080134

AMA Style

Tanaka M, Shiota S, Kiya H. A Detection Method of Operated Fake-Images Using Robust Hashing. Journal of Imaging. 2021; 7(8):134. https://doi.org/10.3390/jimaging7080134

Chicago/Turabian Style

Tanaka, Miki, Sayaka Shiota, and Hitoshi Kiya. 2021. "A Detection Method of Operated Fake-Images Using Robust Hashing" Journal of Imaging 7, no. 8: 134. https://doi.org/10.3390/jimaging7080134

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