In this work, a new quaternion-based method for color image watermarking is proposed. In
this method, a novel set of quaternion radial substituted Chebyshev moments (QRSCMs) is …

In this paper, a geometrically invariant color image watermarking method using Quaternion
Legendre-Fourier moments (QLFMs) is presented. A highly accurate, fast and numerically …

Most of the existing color image watermarking schemes was designed to mark grayscale
images or use the color components, which ignore the significant correlation between …

In this paper a hybrid digital video watermarking scheme based on discrete wavelet
transform and singular value decomposition is proposed. Unlike the most existing …

With the growth of globalisation, security has been a major concern in digital exchange of
medical information. Data hiding, also referred as watermarking, was introduced to …

In the last decade, the invariant quaternion moment-based watermarking methods were
successfully used due to their robustness against the geometric attacks. In this chapter, a …

In multimedia technology enhanced learning, digital watermarking is an important technique
for protecting copyrighted multimedia materials. In this paper, we propose a robust color …

Digital watermarking has been widely applied to solve copyright protection problems of
digital media relating to illegal use of distributions. In digital watermarking, a watermark is …

Today's fast growing world makes us more insecure in many ways like digital security,
financial security and most important our digital media contents like photographs, videos. To …

With the aim of copyright control in transmission of digital video, this paper presents a DCT-
based video watermarking method. Its essence is to embed the copyright related information …