Digital Forensic Technique for Multiple Compression based JPEG Forgery

Malviya, Pankaj (2015) Digital Forensic Technique for Multiple Compression based JPEG Forgery. MTech thesis.



In today's digital world digital multimedia like, images, voice-notes and videos etc., are the major source of information/data exchange. The authenticity of these multimedia is greatly vital in the legitimate business, media world and broadcast industry. However, with enormous multiplication of ease, simple-to-utilize data manipulation tools and softwares lead to the faithfulness of digital images is in question. In our work, we propose a technique to identify digital forgery or tampering in JPEG (Joint Photographic Experts Group) images which are based on multiple compression factor. We are dealing with the JPEG images on the grounds because JPEG is the standard storage format used in almost all present day digital devices like digital camera, camcorder, mobile devices and other image acquisition devices. JPEG compresses a image to the best compression in-order to manage the storage requirement. JPEG is a lossy compression standard. At the point when an assailant or criminal modifies some region/part of a JPEG image by any image processing tools and save it, the modified region of the image is doubly-compressed. In our work, we exploit this multiple compression in JPEG images to distinguish digital forgery or falsification.

Item Type:Thesis (MTech)
Uncontrolled Keywords:Digital Forensics, Image Forgery, Image Authentication, Cyber Crimes, JPEG Standard, JPEG Compression
Subjects:Engineering and Technology > Computer and Information Science > Image Processing
Engineering and Technology > Computer and Information Science > Information Security
Divisions: Engineering and Technology > Department of Computer Science
ID Code:6778
Deposited By:Mr. Sanat Kumar Behera
Deposited On:30 Dec 2015 15:51
Last Modified:30 Dec 2015 15:51
Supervisor(s):Naskar, R

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