http://repository.iitr.ac.in/handle/123456789/16752| Title: | A method for detecting JPEG anti-forensics |
| Authors: | Bhardwaj D. Kumawat C. Pankajakshan, Vinod Arora C. Rameshan R. Dutta Roy S. |
| Published in: | Proceedings of Communications in Computer and Information Science |
| Abstract: | In this paper, a new approach is proposed for the detection of JPEG anti-forensic operations. It is based on the fact that when a JPEG anti-forensic operation is applied, the values of DCT coefficients are changed. This change decreases, especially in high frequency subbands, if we apply anti-forensic operation again. Hence, we propose to calculate a normalized difference between absolute values of DCT coefficients in 28 high frequency AC-subbands of the test image and its anti-forensically modified version. Based on this normalized feature, it is possible to differentiate between uncompressed and anti-forensically modified images. Experimental results show the effectiveness of the proposed method. © Springer Nature Singapore Pte Ltd. 2018. |
| Citation: | Proceedings of Communications in Computer and Information Science, (2018), 190- 197 |
| URI: | https://doi.org/10.1007/978-981-13-0020-2_17 http://repository.iitr.ac.in/handle/123456789/16752 |
| Issue Date: | 2018 |
| Publisher: | Springer Verlag |
| Keywords: | Computer vision Absolute values Anti-Forensics DCT coefficients High frequency AC High frequency HF New approaches Normalized differences Test images Digital forensics |
| ISBN: | 9.79E+12 |
| ISSN: | 18650929 |
| Author Scopus IDs: | 57190293585 57201898896 6506890403 |
| Author Affiliations: | Bhardwaj, D., Department of Electronics and Communication Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India Kumawat, C., Department of Electronics and Communication Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India Pankajakshan, V., Department of Electronics and Communication Engineering, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India |
| Corresponding Author: | Bhardwaj, D.; Department of Electronics and Communication Engineering, Indian Institute of Technology RoorkeeIndia; email: dinesdec@iitr.ac.in |
| Appears in Collections: | Conference Publications [ECE] |
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