Image watermarking is a key technology for copyright protection, and how to better balance
the invisibility and robustness of algorithms is a challenge. To tackle this challenge, a …

The vector-based hidden Markov model (HMM) is a powerful statistical model for
characterizing the distribution of the wavelet coefficients, since it is capable of capturing the …

Increasing the robustness, reliability and security of the digital image watermarking methods
against image processing and geometrics attacks are a key issues especially for image …

In highly open systems like the Internet, attribute-based access control (ABAC) has proven
its appropriateness. The specification and maintenance of ABAC policies however has …

It still remains a challenging problem to improve both of the imperceptibility and robustness
for the digital image watermarking task. In this study, a color image watermarking scheme is …

In this paper, a robust additive image watermarking system operating in the Dual Tree
Complex Wavelet Transform (DTCWT) domain is proposed. The system takes advantage of …

In this paper, we propose a blind robust image watermarking approach in the
nonsubsampled Shearlet domain using Bessel K Form (BKF) modeling. Nonsubsampled …

Imperceptibility and robustness are two main requirements of any image watermarking
systems to guarantee desired functionalities, but there is a tradeoff between them from the …

This paper proposes a novel multiplicative contourlet domain watermark detector. We use
contourlet transform since this transform represents image edges sparsely and this makes it …

Watermark detection is a way of verifying the existence of a watermark in a watermarking
scheme used for copyright protection of digital data. Statistical modeling of wavelet subband …