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Image Scrambling without Bandwidth Expansion

D. Van De Ville, W. Philips, R. Van de Walle, I. Lemahieu

IEEE Transactions on Circuits and Systems for Video Technology, vol. 14, no. 6, pp. 892-897, June 2004.


Image-scrambling schemes are designed to render the image content unintelligible. Wyner has proposed an elegant one-dimensional (1-D) scrambling scheme without bandwidth expansion, making use of the discrete prolate spheroidal sequences (DPSS). The DPSS are optimal regarding their energy concentration in a given frequency subband. In this paper, we propose the two-dimensional (2-D) extension and application of this algorithm. We discuss new possibilities introduced by the 2-D approach. We also include experimental results.

@ARTICLE(http://bigwww.epfl.ch/publications/vandeville0404.html,
AUTHOR="Van De Ville, D. and Philips, W. and Van de Walle, R. and
	Lemahieu, I.",
TITLE="Image Scrambling without Bandwidth Expansion",
JOURNAL="{IEEE} Transactions on Circuits and Systems for Video
	Technology",
YEAR="2004",
volume="14",
number="6",
pages="892--897",
month="June",
note="")

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