A novel LSB-based RDH with dual embedding for encrypted images Online publication date: Sat, 29-Jun-2019
by Jayanta Mondal; Debabala Swain; Devee Darshani Panda
International Journal of Electronic Security and Digital Forensics (IJESDF), Vol. 11, No. 3, 2019
Abstract: A novel reversible data hiding technique for encrypted images is proposed in this paper. Encryption helps achieving privacy which is a necessity for sensitive imagery such as medical and military images. In encrypted domain data embedding capacity remains a big challenge. A dual embedding scheme is proposed to enhance the additional data hiding capability. The general architecture includes a content owner, a data hider, and a receiver. This scheme is subjected to work on 512 × 512 grey-scale image. The encryption is done using a random 512 × 512 key matrix followed by a two phase data hiding technique to embed bits differently in odd and even blocks. Experiments are conducted in different block sizes in the embedding phase to achieve maximum data hiding potential. Experimental results show a huge increase in embedding capability. The error rate has significantly reduced over 50% in the recovered image and visual quality and image recovery is better than the existing methods.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Electronic Security and Digital Forensics (IJESDF):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook