Reversible data hiding for encrypted signals by homomorphic encryption and signal energy transfer.
Xiaotian WuBing ChenJian WengPublished in: J. Vis. Commun. Image Represent. (2016)
Keyphrases
- reversible data hiding
- encrypted data
- homomorphic encryption
- signal processing
- data hiding
- encryption scheme
- high capacity
- prediction algorithm
- empirical mode decomposition
- image processing
- pixel values
- visual quality
- frequency domain
- high frequency
- privacy preserving
- data sharing
- information hiding
- spread spectrum
- low cost
- digital libraries
- data storage
- third party
- coding method
- secret data
- databases