Digital watermarking has the properties such as invisibility and anti-aggression, so the
digital watermarking technology has been widely used in copyright protection, information …

As a pivotal advance in the field of information security, steganography holds a crucial place
in concealing sensitive information. It is the technique of hiding secret data within a digital …

This paper analyses and rectifies the shortcomings of reversible contrast mapping (RCM)
algorithm for invisible watermarking. The proposed corrected RCM algorithm is tested by …

In the digitally dominated world, to enhance the data security of digital images, this paper
proposes a hybrid algorithm. The algorithm enhances quality metrics and simultaneously …

This paper presents an improved reversible contrast mapping (RCM) algorithm for reversible
invisible watermarking (RIW) in both software and hardware platforms. Based on well-known …

This paper deals with the design of a new four-dimensional two-scroll hyperchaos
dynamical system with three quadratic non-linear terms. The new two-scroll dynamical …

In this article, a hardware implementation of an invisible watermarking system has been
proposed using Cyclone IV-E'EP4CE115F29C7'FPGA board of ALTERA company …

This paper proposes a data-hiding scheme for quality access control of digital images using
quantization index modulation (QIM) and its hardware implementation. To achieve the goal …

With the continuous development of noise reduction technology for ships, submarines, and
other equipment, the acoustic and magnetic noise signals radiated by underwater targets …

A lifting based reversible data hiding is introduced here. The low–high subband is
subdivided into little blocks of size (4× 4), to generate a content dependent watermark. Then …