REVERSIBLE DATA HIDING IN ENCRYPTED IMAGE WITH PREDICTION ERROR CLUSTERING AND RANDOM PERMUTATION

Electronics and Communication Engineering

NATIONAL CONFERENCE ON TECHNOLOGICAL ADVANCEMENTS IN ENGINEERING

A scheme is proposed to implement reversible data hiding (RDH) in encrypted images using prediction error clustering and random permutation. The original image is encrypted by the content owner using prediction error clustering and random permutation. We also demonstrate that an arithmetic coding-based approach can be exploited to efficiently compress the encrypted image. Then the data hider modifies the bits taken from the encrypted image to accommodate the secret data. On the receiver side, the secret data can be extracted if the receiver is available with the embedding key only. If the receiver has the encryption key only, original image can be recovered. If both the embedding and encryption keys are available at the receiver side, he/she can extract the secret data and recover the original image using logistic substitution decoding. The scheme is a good choice for secure image transmission.

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