The paper examines watermarking and digital signature based approaches for image
authentication. It is shown that digital signature has a better performance at least in semi …

This paper proposes two watermarking-based algorithms for temper detection and recovery
of the tampered regions, which can be applied to official documents, such as digitized …

In this study, a QR-based digital watermarking scheme that can use color images is
proposed. The main purpose of this method is to enhance robustness against cropping …

Watermarks have been used for centuries to authenticate images and prevent forgery.
Today watermarks are embedded into digital images so that legitimate owners can assert …

In this paper, a method for digital image watermarking is described that is resistant to
geometric transformations. A private key, which allows a very large number of watermarks …

Digital watermarking technology would be very useful as part of a related service
introduction system (RSIS); this system provides related information to content, and the …

In this work, we propose a new substitution scheme for color images watermarking based on
the Fourier transform. This scheme will be declined into two variants in which the image will …

A QR code based blind digital image watermarking technique with an attack detection
feature is described here. The technique describes a key based framework to incorporate …

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 …

Image, audio and video are the first media affected by hacking due to the availability of the
internet and to the high speed connection. One of the solutions to solve such problems is …