Title :
Improving Security of Pixel Value Differencing Steganographic Method
Author :
Zaker, Nazanin ; Hamzeh, Ali ; Katebi, Seraj Dean ; Samavi, Shadrokh
Author_Institution :
Dept. of Comput. Sci. & Eng., Shiraz Univ., Shiraz, Iran
Abstract :
Pixel value differencing (PVD) is a steganographic method which embeds secret data in images based on spatial information. PVD has relatively high capacity but its effectiveness has been questioned by variety of steganalysis attacks. These attacks use the difference histogram quantization to reveal existence of secret data in a stego image. In this paper, we propose some modifications to PVD method to make it more robust to histogram quantization. Hence, at the expense of slight reduction in the capacity of the original algorithm, PVD´s stability against histogram quantization attacks is significantly improved.
Keywords :
copyright; image coding; security of data; steganography; vector quantisation; difference histogram quantization; pixel value differencing steganographic method; secret data embedding; security; spatial information; steganalysis attacks; stego image; Atherosclerosis; Computer security; Data encapsulation; Data mining; Data security; Engineering profession; Histograms; Pixel; Quantization; Steganography;
Conference_Titel :
New Technologies, Mobility and Security (NTMS), 2009 3rd International Conference on
Conference_Location :
Cairo
Print_ISBN :
978-1-4244-4765-7
DOI :
10.1109/NTMS.2009.5384692