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Recently, various image encryption algorithms have been proposed in order to images from unauthorized access and distribution, and most of them only has the operation on encryption in spatial domain, but no consideration of its corresponding compression. Therefore, to ensure the level of compression ratio and image quality, a class of JPEG image encryption algorithm based on spatiotemporal chaos is...
The impulsive synchronization of spatiotemprol chaos is investigated. A proof of the existence of a certain kind of impulses for synchronization such that the error dynamics is equi-attractive in the large is established. The method of choosing impulse duration and the magnitude of the impulses is discussed in detail. Moreover, as an application, a secure communication scheme based on the results...
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