Watermarking techniques are primarily used for copyright protection. A simple and robust
watermark-like digital authentication scheme is proposed. This work has two major merits …

The development of computers and Internet has exploded in the last few years. The digital
images are distributed and duplicated easily through WWW, thus the protection of the …

The digital revolution in digital image processing has made it possible to create, manipulate
and transmit digital images in a simple and fast manner. The adverse affect of this is that the …

Over the past few years, there have been more and more robust watermarking schemes
proposed for copyright protection of digital documents. The authors combine cryptography …

This paper presents a copyright protection and integrity verification watermarking scheme for
color images. It uses the extracted features of the host image to generate a watermark, which …

In this paper, a feature-based robust digital image watermarking algorithm is proposed to
achieve the goal of image authentication and protection simultaneously. The Hessian-Affine …

Digital image manipulation software is now readily available on personal computers. It is
therefore very simple to tamper with any image and make it available to others. Insuring …

Conventional digital signature schemes for image authentication encode the signature in a
file separate from the original image, thus require extra bandwidth to transmit it. Meanwhile …

A robust watermarking scheme for hiding binary or gray-scale watermarks in digital images
is proposed in this chapter. Motivated by the fact that a detector response (a correlation …

In this paper, a watermarking-based image authentication scheme used to verify the
contents of transmission grayscale images is proposed. In this scheme, the watermark of …