The mainstream adaptive steganography algorithms often cannot transmit secret messages
correctly when stego images suffer from JPEG compression. In this respect, researchers …

Digital watermarking is used to protect copyright information by embedding hidden data in
digital media. In this study, a multiplicative watermarking scheme is proposed in the …

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 …

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 …

Data security is a main concern in everyday data transmissions over the Internet. A possible
solution to guarantee secure and legitimate transaction is via hiding a piece of tractable …

Invisibility, robustness and payload are three indispensable and contradictory properties for
any image watermarking systems. Recently, to achieve the tradeoff among above three …

This paper presents a new robust multiplicative watermark detector. Due to the strong
robustness against various attacks, polar harmonic Fourier moment (PHFM) magnitudes are …

The illegal duplication of digital copies became easier because of increased communication
speed and rapid growth of internetworked multimedia systems. So it is required to …

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 …

As one promising solution, digital watermarking has been proposed to resolve image
copyright protection and content authentication, and has been applied successfully in many …