Using watermarking techniques and digital signatures can better solve the problems of
digital images transmitted on the Internet like forgery, tampering, altering, etc. In this paper …

The discrete wavelet transform (DWT) has good multi-resolution decomposition
characteristic and its low frequency component contains the basic information of an image …

Currently in the health environment, medical images are a very crucial and important part of
the medical information because of the large amount of information and their disposal two …

In order to improve security and detection of tampered area, in the meantime be able to
resist common image processing operation such as: JPEG, Gaussian Filter or other …

Semi-fragile watermarking has been widely used for content authentication. In this paper, we
propose a semi-fragile watermarking method using slant transform (ST) and LU …

In these days, people are using social networking sites for sharing their life moments as
images. And another side other users can access or even download those digital images …

This paper describes a digital image watermarking scheme using discrete wavelet
transform. In this scheme, digital image watermarking algorithm is based on the DWT …

This paper proposes implementation of digital image watermarking using 3-level discrete
wavelet transform. In this experimentation, digital image watermarking algorithm uses …

This paper introduces an algorithm of digital image watermarking based on Discrete
Wavelet Transform (DWT). In this technique the embedding and extraction of the watermark …

The widespread emergence of computer networks and the popularity of electronic managing
of medical records have made it possible for digital medical images to be shared across the …