A novel reversible data hiding algorithm with improved security, which can recover the original image in separable manner without any distortion from the marked image after the hidden data have been extracted, is presented in this paper. In the content owner side image is encrypted by key derived chaotic based transposition algorithm. The data hider then hides some data into the encrypted image by histogram modification based data hiding, making use of data hiding key. At the receiver side, if the receiver has only encryption key, then the decrypted image with high similarity with cover image can be obtained, but cannot read the hidden data. Lower bound of Peak Signal to Noise Ratio (PSNR) of this method is much higher than the existing methods (48.13dB). If the receiver has only data hiding key, then the hidden data can be extracted out, but cannot read the content of the image. If the receiver has both keys, he may first extract the data using data hiding key and then decrypt the image using encryption key. The method also has a higher data hiding capacity than the existing reversible data hiding techniques in encrypted image.
[1]
A. Jantan,et al.
An Image Encryption Approach Using a Combination of Permutation Technique Followed by Encryption
,
2008
.
[2]
Xinpeng Zhang,et al.
Separable Reversible Data Hiding in Encrypted Image
,
2012,
IEEE Transactions on Information Forensics and Security.
[3]
Weiming Zhang,et al.
Reversible Data Hiding in Encrypted Images by Reserving Room Before Encryption
,
2013,
IEEE Transactions on Information Forensics and Security.
[4]
Jun Tian,et al.
Reversible data embedding using a difference expansion
,
2003,
IEEE Trans. Circuits Syst. Video Technol..
[5]
Weiming Zhang,et al.
Reversibility improved data hiding in encrypted images
,
2014,
Signal Process..
[6]
Rintu Jose,et al.
A separable reversible data hiding in encrypted image with improved performance
,
2013,
2013 Annual International Conference on Emerging Research Areas and 2013 International Conference on Microelectronics, Communications and Renewable Energy.