An Image Interpolation Based Reversible Data Hiding Scheme Based on Pixel Intensity
Main Article Content
Abstract
In this paper, we propose two interpolations based reversible data hiding scheme. In the first scheme, we propose a novel reversible
stenographic scheme using image interpolation and pixel intensity. The scheme consists of two stages namely: image interpolation and data
hiding. At the first stage i.e., image interpolation, the original image is scaled up using the INP (Interpolation by Neighboring Pixels) and then at
the second stage i.e., data hiding, the secret data is hidden into the interpolated pixels. The amount of secret data is hidden into the pixels based
on the intensity of the pixels. The scheme makes use of a notion that more changes can be tolerated in high intensity pixels than in the low
intensity ones. Finally, we compare our scheme with some of the important schemes of the literature. The experimental results show that our
schemes perform better in terms of hiding capacity and image quality.In the second scheme, we propose a reversible data hiding scheme using
image interpolation which embeds the secret data bits into two passes after scaling up the input image using the INP (Interpolation by
Neighboring Pixels). Only interpolated pixels are used to embed the secret data. In the first pass, it embeds the secret data into the even valued
pixels followed by second pass in which odd valued pixels are used to embed the secret data. Before embedding the secret data in every pass, it
constructs a location map which is compressed using JBIG1 compression technique and is sent to the receiver using a secure channel. To
improve the security of the secret message, it selects a private key and XORes all the bytes of the secret data before embedding the same into the
image so that even if the attacker cracks the embedding algorithm he/she is not able to get the original; secret data. Experimentally, our scheme
performs much better than the existing scheme in terms of both data hiding capacity and image quality. Furthermore, it is very simple as it only
increases or decreases the pixel values for embedding the secret data.
Â
Keywords: cover image, stego image, reversible data hiding, interpolation, secret data, hiding capacity, image quality.
Downloads
Article Details
COPYRIGHT
Submission of a manuscript implies: that the work described has not been published before, that it is not under consideration for publication elsewhere; that if and when the manuscript is accepted for publication, the authors agree to automatic transfer of the copyright to the publisher.
Authors who publish with this journal agree to the following terms:
- Authors retain copyright and grant the journal right of first publication with the work simultaneously licensed under a Creative Commons Attribution License that allows others to share the work with an acknowledgment of the work's authorship and initial publication in this journal.
- Authors are able to enter into separate, additional contractual arrangements for the non-exclusive distribution of the journal's published version of the work (e.g., post it to an institutional repository or publish it in a book), with an acknowledgment of its initial publication in this journal.
- Authors are permitted and encouraged to post their work online (e.g., in institutional repositories or on their website) prior to and during the submission process, as it can lead to productive exchanges, as well as earlier and greater citation of published work
- The journal allows the author(s) to retain publishing rights without restrictions.
- The journal allows the author(s) to hold the copyright without restrictions.