Title: Image data hiding scheme based on spline interpolation and OPAP

Authors: Amine Benhfid; El Bachir Ameur

Addresses: LaRIT Laboratory, Faculty of Sciences, Ibn Tofail University, Kenitra, Morocco ' LaRIT Laboratory, Faculty of Sciences, Ibn Tofail University, Kenitra, Morocco

Abstract: In this paper we propose an image steganography method based on the spline interpolation. Firstly, digital images are often transmitted over the Internet which would arouse little suspicion. Secondly, the high correlation between pixels provides rich space for data embedding; in addition, optimal pixel adjustment procedure (OPAP) is employed to minimise the error between the input image and the output image in order to ameliorate the fidelity of the proposed steganography method. We propose image steganography methods in spatial domain by using a nearest neighbour, bilinear and bicubic spline interpolation technique, which can embed a large amount of secret data into images with imperceptible modification. The interpolation error, which is measured by distance between the maximum value and the predicted value, is used to embed the secret data. The experimental results show that the proposed schemes provide a larger payload and a good image quality.

Keywords: steganography; data hiding; spline interpolation; optimal pixel adjustment procedure; OPAP.

DOI: 10.1504/IJKESDP.2019.102880

International Journal of Knowledge Engineering and Soft Data Paradigms, 2019 Vol.6 No.2, pp.139 - 150

Received: 28 Jul 2018
Accepted: 20 Apr 2019
Published online: 08 Oct 2019 *

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