Van De Ville, D.Philips, W.Van de Walle, R.Lemahieu, I.2005-11-302005-11-302005-11-30200410.1109/TCSVT.2004.828325https://infoscience.epfl.ch/handle/20.500.14299/220720WOS:0002217756000145273Image-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.Image Scramblingtext::journal::journal article::research article