Identity protection is an indispensable feature of any information security system. An identity
can exist in the form of digitally written signatures, biometric information, logos, etc. It serves …

With the advent of Internet, images and videos are the most vulnerable media that can be
exploited by criminals to manipulate for hiding the evidence of the crime. This is now easier …

This paper presents a Discrete Cosine Transformation (DCT) based effective self-
recoverable fragile watermarking scheme. For each 2× 2 non-overlapping block, two …

In recent years, the growth of the Internet along with multimedia data delivery, have caused
the misuse and even alteration of the original digital content. As a security mechanism …

This paper presents a survey of fragile watermarking schemes for image authentication
proposed in the past decade. The limited embedding capacity and extent of tampering are …

The rapid developments of storage technology and information exchange encourage the
development of research in the field of information security. In the process of sending …

To address issues of image authenticity verification and integrity protection, a fragile
watermarking method for stereo image authentication is proposed with stereo matching …

In recent years, image forgery has become an important issue with the use of images in
many important areas. Several self-embedding fragile watermarking methods have been …

In this paper an image tamper localisation scheme is proposed in which authentication bits
of a 2× 2 image block are generated using the chaotic maps. Further the scheme is …

Semi-fragile self-recoverable watermarking algorithms are important to meet various
requirements such as security, robustness, localization, and image recovery. However …