Digital image watermarking provides security, copyright protection, and authenticity to
multimedia content by embedding digital content like text, image, and video. In the modern …

Recently, diagnosing diseases using medical images became crucial. As these images are
transmitted through the network, they need a high level of protection. If the data in these …

To better describe the features of a color image, the quaternion fractional-order orthogonal
Fourier-Mellin moments (QFrOOFMMs) are defined. By combining QFrOOFMMs with least …

Images are very important forms of data that are widely used nowadays. Every day, millions
of grey and color images are transferred via the web. Protecting these images from …

In the age of Information Technology, the day-life required transmitting millions of images
between users. Securing these images is essential. Digital image encryption is a well-known …

To protect the medical images integrity, digital watermark is embedded into the medical
images. A non-blind medical image watermarking scheme based on hybrid transform is …

With the widespread use of color images, the copyright protection of those images using
watermarks is one of the latest research topics. The use of color images as watermarks has …

Robust watermarking is a valuable methodology used in protecting the copyright and
securing digital images. In this paper, new fractional-order multi-channel orthogonal …

Color multi-watermarking is a challenge in the field of copyright protection, and the key in the
color multi-watermarking technology is how to determine the optimal embedding regions …

The single watermarking algorithm for medical images faced several inherent problems like
lack of security. In this paper, a new geometrically invariant multiple zero-watermarking …