A Quantum Watermarking Scheme Using New Enhanced Quantum Image Representation
Xing Zheng, Xiaochen Yuan, Chan–Tong Lam · 2023
This paper proposes a quantum watermarking scheme in spatial domain for quantum grayscale images, using the New Enhanced Quantum Image Representation (NEQR). The Quantum Majority Finder (QMF) is proposed and applied to determine the embedding rules of the watermark information. A Bit-plane Repositioning (BR) method is proposed to reconstruct the quantum watermark, in order to embed it uniformly into the quantum carrier image. The quantum circuits of the proposed scheme are designed. We simulate the proposed scheme on a classical computer using MATLAB and evaluate it with various metrics. The experimental results show that the proposed scheme can achieve good visual quality and robustness.