Statistically undetectable jpeg steganography: dead ends challenges, and opportunities

J Fridrich, T Pevný, J Kodovský - Proceedings of the 9th workshop on …, 2007 - dl.acm.org
Proceedings of the 9th workshop on Multimedia & security, 2007dl.acm.org
The goal of this paper is to determine the steganographic capacity of JPEG images (the
largest payload that can be undetectably embedded) with respect to current best
steganalytic methods. Additionally, by testing selected steganographic algorithms we
evaluate the influence of specific design elements and principles, such as the choice of the
JPEG compressor, matrix embedding, adaptive content-dependent selection channels, and
minimal distortion steganography using side information at the sender. From our …
The goal of this paper is to determine the steganographic capacity of JPEG images (the largest payload that can be undetectably embedded) with respect to current best steganalytic methods. Additionally, by testing selected steganographic algorithms we evaluate the influence of specific design elements and principles, such as the choice of the JPEG compressor, matrix embedding, adaptive content-dependent selection channels, and minimal distortion steganography using side information at the sender. From our experiments, we conclude that the average steganographic capacity of grayscale JPEG images with quality factor 70 is approximately 0.05 bits per non-zero AC DCT coefficient.
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