@inproceedings{0df1e1626bbb41c38a579d2f63ac8c03,
title = "Tamper-evident Image using JPEG Fixed Points",
abstract = "An intriguing phenomenon about JPEG compression has been observed since two decades ago- after repeating JPEG compression and decompression, it leads to a stable image that does not change anymore, which is a fixed point. In this work, we prove the existence of fixed points in the essential JPEG procedures. We analyze JPEG compression and decompression processes, revealing the existence of fixed points that can be reached within a few iterations. These fixed points are diverse and preserve the image's visual quality, ensuring minimal distortion. This result is used to develop a method to create a tamper-evident image from the original authentic image, which can expose tampering operations by showing deviations from the fixed point image.",
keywords = "JPEG compression, Tamper-evident image, fixed points",
author = "Zhaofeng Si and Siwei Lyu",
note = "Publisher Copyright: {\textcopyright} 2025 Copyright held by the owner/author(s).; 1st ACM Workshop on Deepfake, Deception and Disinformation Security, 3D-Sec 2025 ; Conference date: 13-10-2025 Through 17-10-2025",
year = "2025",
month = oct,
day = "12",
doi = "10.1145/3733813.3764369",
language = "English",
series = "3D-Sec 2025 - Proceedings of the 1st ACM Workshop on Deepfake, Deception and Disinformation Security",
publisher = "Association for Computing Machinery, Inc",
pages = "26--31",
editor = "Woo, \{Simon S.\} and Shahroz Tariq and Sharif Abuadbba and Kristen Moore and Tim Walita and Mario Fritz and Bimal Viswanath",
booktitle = "3D-Sec 2025 - Proceedings of the 1st ACM Workshop on Deepfake, Deception and Disinformation Security",
}