With the rapid development and popularity of the Internet, multimedia security has become a
general essential concern. Especially, as manipulation of digital images gets much easier …

In recent years, some researchers have been interested in whether robustness and
blindness can be simultaneously secured in a watermarking based on machine learning …

Abstract Discrete Tchebyshev moments (DTMs), as a kind of typical discrete orthogonal
moments, have been widely used in image analysis. However, the order of DTMs is …

Digital watermarking has been widely studied as a method of protecting the intellectual
property rights of digital images, which are high value-added contents. Recently, studies …

Robust blind watermarking has become a vital means of copyright protection, and this paper
presents a new optimal robust and blind watermarking method of grayscale images based …

With the growing popularity of the Internet, digital images are used and transferred more
frequently. Although this phenomenon facilitates easy access to information, it also creates …

The fifth-generation wireless telecommunication technology (5G) with high speed, wide
coverage and large amount of data have posed new requirements for the running time …

The propagation of digital media over the Internet has helped improve digitization, which
has given an excessive lead to copyright issues. Digital watermarking techniques have been …

This paper proposes a novel fractional transform, denoted as the fractional Krawtchouk
transform (FrKT), a generalization of the Krawtchouk transform. The derivation of the FrKT …

Sharing images on social network platforms (SNPs) from mobile intelligent devices is
becoming more and more popular and has great potential for covert communication …