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A lightweight encryption technique for JPEG2000 with optional support for transparent encryption is proposed. Randomized anisotropic wavelet packet bases are used to construct a secret frequency domain, leading to a situation in which only a minimal amount of data needs to be encrypted. Results and calculations are presented to evaluate the suggested approach in terms of compression performance, security, and applicability.doi:10.1109/icme.2006.262687 dblp:conf/icmcs/EngelU06 fatcat:a2ruiyykkrcq3amvue3ifa3ldi