In this paper, an improved second generation digital image watermarking scheme is
proposed. This scheme exploits the region feature instead of point or line feature. The region …

A robust and geometric invariant digital watermarking scheme for gray-level images is
proposed in this paper. The scheme carries out watermark embedding and extraction based …

Digital watermarking is used to hide the information inside a signal, which can not be easily
extracted by the third party. Its widely used application is copyright protection of digital …

In this paper, a digital watermarking algorithm resistant to the noise, geometric distortion and
JPEG compression is proposed. Firstly, in order to enhance the security of the watermarking …

In order to protect the copyright authority of important digital images, the non-blind
watermarking scheme is allowed. In this paper, we propose a histogram based non-blind …

Contourlet transform is a very efficient anisotropy analysis tool in high dimensions, which
can not only possess the main features of directionality and anisotropy, but also effectively …

A robust digital image watermarking scheme that combines image feature extraction and
image normalization is proposed. The goal is to resist both geometric distortion and signal …

A robust and geometric invariant digital watermarking scheme for gray-level images is
proposed in this paper. The scheme carries out watermark embedding and extraction based …

In recent years, digital watermarking techniques have been proposed to protect the
copyright of multimedia data. Different watermarking schemes have been suggested for …

In this paper we aim to present a survey of different techniques on digital image
watermarking. Digital watermarking technique is becoming more important in this …