Description

This work proposes a novel scheme for Reserving room after encrypted data hiding in encrypted images. In the Reserving Room before Encryption was done by using AES and Reversible data hiding. The RDH to in improve the data hiding process. In existing the data retrieval process the error is accrue it affect the data, in our proposed improve the Data hiding and retrieval accuracy. A content owner encrypts the original image using an encryption key and reserve the room for data hiding. Then, a data-hider hide the data in reserve space of the image. If a receiver has the data-hiding key, he can extract the additional data though he does not know the image content. If the receiver has the encryption key, he can decrypt the received data to obtain an image similar to the original one, but cannot extract the additional data. If the receiver has both the data-hiding key and the encryption key, he can extract the additional data and recover the original content without any error by exploiting the spatial correlation in natural image when the amount of additional data is not too large.