A WAVELET DOMAIN IMPLEMENTATION OF DIGITAL WATER MARKING

Abstract

Watermarking is an approach to address the problem of authority of multi-media data. The concept of digital watermarking is associated with data hiding technique, known as stenography. This technique has been proposed as a way to identify the source, creator, owner or authorized distributer of multi media data. Digital watermarking has been presented in recent literatures as a technique to protect the copyright of multimedia data. Digital water marking proposes the unified approach to watermark the image or video based on two or three dimensional discreet wavelet transform. The hierarchical nature of wavelet representation allows multi resolution detection of digital watermark, which is Gaussian distributed random vector added to the entire high pass band in wavelet domain. In this major project a watermarking on image is implemented using wavelet. After watermarking, the watermarked image will be tested against common image processing operation such as blurring, rotating, scaling a...