PCA-DTT 2D-DHCES based attack resilient imperceptible image watermarking
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PCA-DTT 2D-DHCES based attack resilient imperceptible image watermarking Ahmed Khan 1 Received: 9 January 2020 / Revised: 1 September 2020 / Accepted: 23 October 2020 # Springer Science+Business Media, LLC, part of Springer Nature 2020
Abstract
Most schemes exhibit low robustness due to LSB’s (Least Significant Bit) and MSB’s (Most Significant Bit) based information hiding in the cover image. However, most of these IW schemes have low imperceptibility as the cover image distortion reveals to the attacker due to information hiding in MSB’s. In this paper, a hybrid image watermarking scheme is proposed based on integrating Robust Principal Component Analysis (R-PCA), Discrete Tchebichef Transform (DTT), and Singular Value Decomposition (SVD). A grayscale watermark image is twisted/scrambled using a 2D Discrete Hyper-chaotic Encryption System (2D-DHCES) to boost up the robustness/heftiness and security. The original cover image is crumbled into sparse components using R-PCA and using DTT the substantial component is additionally decomposed and the watermark will be embedded in the cover image using SVD processing. In DTT, scarcer coefficients hold the utmost energy, also provide an optimum sparse depiction of the substantial image edges and features that supports proficient retrieval of the watermark image even after unadorned image distortion based channel attacks. The imperceptibility and robustness of the proposed method are corroborated against a variety of signal processing channel attacks (salt and pepper noise, multi-directional shearing, cropping, and frequency filtering, etc.). The visual and quantifiable outcomes reveal that the proposed image watermarking scheme is much effective and delivers high forbearance against several image processing and geometric attacks. Keywords Image watermarking . Discrete Tchebichef transform . Hyper-chaotic encryption . Multimedia security
1 Introduction Digital watermarking is the preeminent way to develop applications used to protect the content authentication or copyrights from prohibited dissemination or usage by an * Ahmed Khan [email protected]
1
School of Information Technology, Monash University Malaysia, Subang Jaya, Malaysia
Multimedia Tools and Applications
unauthorized user as well as automated machines [2]. These applications are very useful in securing medical images, confident military communication and ownership protection, etc. It can be applied to digital multimedia content like images, audios, and videos [21]. The main idea behind image watermarking is to hide or embed the secret information in the cover image at the sender side to preclude the illegitimate use of digital images [3]. Consequently, rights over multimedia can be reassured at the receiver side by extracting and detecting secret information [5]. Three very important features lay a direct impact on the efficiency of any image watermarking techniques; which are robustness, imperceptibility, and embedding capacity [6]. Imperceptibility deals with cover image eminence after hiding the
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