Robust digital image watermarking scheme with a fractional-order discrete-time chaotic scheme and DWT-SVD transform

Abstract

A robust digital image watermarking system with a fractional-order discrete-time chaotic system and discrete wavelet transform-singular value decomposition is presented. The inclusion method inserts an encrypted image into the dynamics of an integer-order discrete-time chaotic system and the resulting cipher serves as a host image watermark. A watermarking function (DWT-SVD transform) watermarks a host image before the watermark is extracted and decrypted at the receiver. As a contribution, our suggested approach introduces a new watermarking system based on discrete-time chaotic systems, as well as a hybridization of integer and fractional-order systems to ensure the watermarking scheme’s robustness. Our method achieved good results in terms of robustness, with normalized cross correlation values above 0.99 when subjected to a range of attacks. Results of the simulation underline practicality and robustness achieved by this approach. They also indicate that the proposed system resists various attacks.

A Zero-Watermarking Algorithm Based on Scale-Invariant Feature Reconstruction Transform

“…The algorithm exhibits strong robustness against geometric attacks and common attacks, surpassing the performance of the IoRHFM-based zero-watermarking algorithm. To enhance the security of digital images, Hannoun K et al [7] proposed a robust digital image watermarking system with a fractional-order discrete-time chaotic system and discrete wavelet transform-singular value decomposition (DWT-SVD). The inclusion method inserts an encrypted image into the dynamics of an integer-order discrete-time chaotic system and the resulting cipher serves as a host image watermark.…”