Some Remarks about Tracing Digital Cameras – Faster Method and Usable Countermeasure

Jaroslaw Bernacki, Marek Klonowski, Piotr Syga

2017

Abstract

In this paper we consider the issue of tracing digital cameras by analyzing pictures they produced. Clearly, the possibility of establishing if a picture was taken by a given camera or even if two pictures come from cameras of the same model can expose users’ privacy to a serious threat. In the paper, at first, we propose a simple and ultra-fast algorithm for identification of the brand of a digital camera and compare the results with the state-of-the-art algorithm by Lukás et al.’s. Experimental results show that at the cost of a moderate decrease of accuracy, our method is significantly faster, thus can be used for an analysis of large batches of pictures or as a preprocessing for more exact. In the second part, we propose a method for limiting the possibility of tracing digital cameras. Our method is a transformation of the picture that can be classified as a type of standardization. We prove that it prevents all methods of tracing cameras based on analysis of histograms. Moreover, in an extensive experimental evaluation we demonstrate that the transformed pictures are very similar to the original images under both visual and objective numerical measure inspection.

Paper Citation

in Harvard Style

Bernacki J., Klonowski M. and Syga P. (2017). Some Remarks about Tracing Digital Cameras – Faster Method and Usable Countermeasure . In Proceedings of the 14th International Joint Conference on e-Business and Telecommunications - Volume 6: SECRYPT, (ICETE 2017) ISBN 978-989-758-259-2, pages 343-350. DOI: 10.5220/0006434803430350

in Bibtex Style

@conference{secrypt17,
author={Jaroslaw Bernacki and Marek Klonowski and Piotr Syga},
title={Some Remarks about Tracing Digital Cameras – Faster Method and Usable Countermeasure},
booktitle={Proceedings of the 14th International Joint Conference on e-Business and Telecommunications - Volume 6: SECRYPT, (ICETE 2017)},
year={2017},
pages={343-350},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0006434803430350},
isbn={978-989-758-259-2},
}

in EndNote Style

TY - CONF
JO - Proceedings of the 14th International Joint Conference on e-Business and Telecommunications - Volume 6: SECRYPT, (ICETE 2017)
TI - Some Remarks about Tracing Digital Cameras – Faster Method and Usable Countermeasure
SN - 978-989-758-259-2
AU - Bernacki J.
AU - Klonowski M.
AU - Syga P.
PY - 2017
SP - 343
EP - 350
DO - 10.5220/0006434803430350