Robust watermarking with oblivious detection is essential to practical copyright protection of digital images. Effective exploitation of the characteristics of human visual perception to color stimuli helps to develop the watermarking scheme that fills the requirement. In this paper, an oblivious watermarking scheme that embeds color watermarks in color images is proposed. Through color gamut a...

Internet has affected our everyday life drastically. Expansive volumes of information are exchanged over the Internet consistently which causes numerous security concerns. Issues like content identification, document and image security, audience measurement, ownership, copyrights and others can be settled by using digital watermarking. In this work, robust and imperceptible nonblind color image...

Watermarking is widely used in multimedia preservation and communication, which comprises, therefore not limited to, data security validation. Security, readability, imperceptibility, resilience are some of the key advantages this technology. However, there still certain issues that need to be addressed, such as ability withstand a variety assaults without substantially affecting quality value ...

Watermarking has increased dramatically in recent years in the Internet and digital media. Watermarking is one of the powerful tools to protect copyright. Local image features have been widely used in watermarking techniques based on feature points. In various papers, the invariance feature has been used to obtain the robustness against attacks. The purpose of this research was based on local f...

To achieve a better trade-off between robustness and imperceptibility, a blind watermarking algorithm based on QR decomposition and voting for color image in DWT domain is proposed in the paper. Most of the existing QR decomposition based watermarking schemes take the first row of R matrix into consideration while in our approach the watermark is embedded by modifying the first column element o...

This paper presents a hybrid blind watermarking technique for color images based on DCT in wavelet transform. Advantages of two powerful transforms namely DCT and DWT are combined. Carrier image is first decomposed into 3 channels, namely R, G, B. Harr DWT is applied to Blue channel and HH band is selected for watermark insertion. HH band is divided into blocks of size 8×8. DCT is applied to ea...

A novel scheme for the watermarking of color images is presented in this communication. An attempt has been made to find the most appropriate alternative to the RGB color space. Color spaces with linear relation to the RGB color space with uncorrelated components are found to be most suitable for watermarking. Another objective has been to propose an adaptive watermarking scheme for any type of...

In this paper, we study the restricted singular-value decomposition (RSVD) for three quaternion tensors under Einstein product, and give higher-order RSVD over algebra, which can achieve simultaneous singular value of tensors. Moreover, algorithm computing What is more, present a new blind color video watermarking scheme based on forth-order our numerical example demonstrates effectiveness fram...

With the rapid evolution of processing multimedia technologies (text, audio, image and video) and its internet application (wide and easy transmission of digital multimedia contents), the copyright protection has been receiving an increasing attention. Among the existing strategies to protect multimedia online, digital watermarking provides a promising way of protecting data online from illegal...