Abstract
Dual image Reversible Data Hiding (RDH) algorithms generate two stego images instead of one. These algorithms are considered more secure because the secret data can be recovered only if both stego images are available. This paper proposes a dual image RDH algorithm based on the Centre Folding Strategy (CFS) and the Shiftable Pixel Coordinate Selection Strategy. The proposed algorithm improves the visual quality of the two stego images while maintaining a high embedding rate. It uses a look-up table containing the shifts that the cover pixel will undergo after the data has been embedded. Some overhead information is required for accurate extraction of the hidden data and it is delivered to the users as a password after embedding. The results show that the proposed algorithm outperforms other methods in terms of visual quality with an average Peak-Signal-to-Noise-Ratio (PSNR) of 50.66 dB with an embedding rate of 1.56 bits per pixel.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: Journal of Visual Communication and Image Representation
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
