Answers are grounded in this paper and cite their sources.
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.
No takes yet. Share an insight, caveat, or question.
Philips et al. (2004) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: