A scheme for encrypting user-defined image region is proposed. The region may be chosen interactively by the user using a mouse or directly entering position parameters. Key streams are generated from a chaotic system. The image is randomly substituted based on DNA encoding. Information about the user-defined region is embedded into the encrypted image with reversible watermarking before transmission. The receiver can directly extract the region information without relying on any additional transmission. Tests and analysis show that the scheme can meet security requirements with good flexibility and practicability.
PENG Shan, LONG Min
. Region-Selected Image Encryption with Combination of DNA Coding and Chaos[J]. Journal of Applied Sciences, 2015
, 33(6)
: 655
-662
.
DOI: 10.3969/j.issn.0255-8297.2015.06.009
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