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 …

Ensuring the image content authentication is a necessity need when images are used as
supporting evidence in critical applications such as law enforcement, medical diagnosis …

The three important quality aspects of image steganography mechanisms are hiding
capacity (HC), peak signal-to-noise ratio (PSNR), and attack resistance. While the stego …

This article proposes an image tamper detection and correction technique. It uses the
principle of differencing and addresses the fall off boundary problem (FOBP). It operates on …

This paper proposes a new block mapping technique for image authentication and self-
recovery designed to avoid the tamper coincidence problem called the AuSR3. The tamper …

Nowadays, images are circulated rapidly over the internet and they are subject to some risk
of misuses. To address this issue, various watermarking methods are proposed in the …

In this study, a fragile watermarking technique is introduced for verifying images based on
QR decomposition and Fourier Transform (FT). At first, we apply the FT to the host image to …

Watermarking methods have traditionally emerged from the imperative to guarantee the
authenticity of digital documents. As we navigate the current landscape of advancing voice …

Singular value decomposition (SVD) based image authentication has widespread
applications for digital media protection including forensic and medical domains due to the …

This proposed image watermarking scheme works on 4× 4 pixel blocks. The least significant
bits (LSBs) of all the 16 pixels are set to zeroes. After setting all the LSBs to zeroes, the …