Title :
Analysis of Benford´s law in digital image forensics
Author :
Singh, Neetu ; Bansal, Rishab
Author_Institution :
Electron. & Commun. Dept., Jaypee Inst. of Inf. Technol., Noida, India
Abstract :
Digital Image Forensics aims at uncovering and analyzing the underlying facts about the image. Its main objectives compromises: tampering detection (cloning, healing, retouching, splicing), hidden data detection and recovery, source identification with no prior measurement or registration of the image. In this paper, application of Benford´ law in Digital Image Forensics has been analyzed. JPEG and JPEG2000 approximately follow this law and JPEG2000 found closer to the given law. The non-following of this law in different forensics setups can be used as fingerprint. Further, amount of deviation from Benford´ law in compressed images can be used to find forgery. Simulations results are given to establish the theory.
Keywords :
data compression; image coding; image forensics; image registration; Benford law; JPEG2000; data detection; data recovery; digital image forensics; image compression; image registration; tampering detection; Digital images; Discrete cosine transforms; Discrete wavelet transforms; Forensics; Image coding; Q-factor; Transform coding; Benford´s law; JPEG2000; compression; digital image forensics;
Conference_Titel :
Signal Processing and Communication (ICSC), 2015 International Conference on
Conference_Location :
Noida
Print_ISBN :
978-1-4799-6760-5
DOI :
10.1109/ICSPCom.2015.7150688
