İmge İçine Bilgi Gizlemede Kullanılan LSB Yöntemlerinin Karşılaştırması
Abstract
Digital image steganography techniques deal with three subjects lossy/lossless
compressed images, uncompressed images. Steganography techniques embed secret data
pixel directly into uncompressed and lossless compressed cover images. The most popular
data hiding method is, changing pixels’ left most digits or last two, known as Least
Significant Bit (LSB). Lossless image formats like .bmp, .png, and 8-bit gray-scale .gif are
usable for LSB methods. LSB embedding method is not usable for palette images because
of changing just last bit of a pixel causes a big difference on image. After embedding all of
secret message to palette image, Human Visual System (HVS) can detect manipulations
on image. In this study, we compare some of the most popular LSB techniques; Chan’s
algorithm [3], 2/3 efficient embedding [4], matrix embedding for large payloads [5], image
blocks method [6] and pixel-value differencing method [7]-[8].
Keywords
References
- 1] N. F. Johnson and S. Katzenbeisser, A survey of steganographic techniques, in: Information Hiding Techniques for Steganography and Digital Watermarking (eds. S. Katzenbeisser and F. A. P. Petitcolas), Artech House Books (2000), 43–78.
- [2] J. Mielikainen, LSB matching revisited, IEEE Signal Processing Letters 13 (2006), 285–287.
- [3] C. S. Chan, On using LSB matching function for data hiding in pixels, Fundamenta Informaticae 96 (2009), 49–59.
- [4] A. D. Ker, Information hiding and covert communication, www.sti.uniurb.it/events/ fosad08/slides/ker-slides-part2.pdf. Online; accessed 26-February-2013.
- [5] J. Fridrich and D. Soukal, Matrix embedding for large payloads, Proceedings of the SPIE 6072 (2006), 727–738.
- [6] O. Kurtuldu ve N. Arıca, ¨ ˙Imge kareleri kullanan yeni bir steganografi y¨ontemi, Journal of Naval Science and Engineering 5 (2009), 107–118.
- [7] D. C. Wu and W. H. Tsai, A steganographic method for images by pixel-value differencing, Pattern Recognition Letters 24 (2003), 1613–1626.
- [8] C. M. Wang, N. I. Wu, C. S. Tsaib and M. S. Hwang, A high quality steganographic method with pixel-value differencing and modulus function, Journal of Systems and Software 81 (2008), 150–158.
Details
Primary Language
English
Subjects
Engineering
Journal Section
Research Article
Publication Date
May 1, 2013
Submission Date
May 1, 2013
Acceptance Date
-
Published in Issue
Year 2013 Volume: 10 Number: 1