Proceedings of 2015 IEEE International Workshop on Information Forensics and Security (WIFS), Rome, pp. 1-6.
ISSN/ISBN: Not available at this time. DOI: 10.1109/WIFS.2015.7368578
Abstract: We analyze a class of first significant digit (FSD) histogram restoration techniques designed to cover up traces of previous JPEG compressions under a minimum cost constraint. We argue that such minimal distortion mappings introduce strong artifacts to the distribution of DCT coefficients, which become particularly prevalent in the domain of second significant digits (SSDs). Empirical findings from large image databases give insight into SSD distributions of DCT coefficients of natural images and demonstrate how images that underwent FSD histogram restoration deviate from natural images.
Bibtex:
@INPROCEEDINGS{7368578,
author={Matthias {Kirchner} and Sujoy {Chakraborty}},
booktitle={Proceedings of 2015 IEEE International Workshop on Information Forensics and Security (WIFS)},
title={A second look at first significant digit histogram restoration},
year={2015},
volume={},
number={},
pages={1--6},
doi={10.1109/WIFS.2015.7368578},
}
Reference Type: Conference Paper
Subject Area(s): Computer Science