Abstract

One of the ways to protect the intellectual property rights of the digital media is digital watermarking. With rapid increase in use of internet and digital media, transmission and reproduction of digital products has become very convenient, but it has some drawbacks also. The digital revolution provides tools to unlimited copying without loss in fidelity. The people can easily steal the digital work of others like image, videos, and audio clips and claim their rights on the stolen things. This situation creates the need of copyright protection of digital media. Digital watermarking can be used for content authentication, detection of illegal duplication and alteration, secret communication as watermarking is very helpful in hiding the secret messages or information in the digital media. Using watermarking the people can keep their work copyrighted. The watermarking algorithm incorporates the watermark in the object, whereas the verification algorithm authenticates the object by determining the presence of the watermark and its actual data bits. The VLSI implementation of digital watermarking system must meet the low area (look up tables, slices, registers, memory elements), delays (path, logical) delays. However, the conventional wavelet transform based VLSI watermarking systems suffers with higher consumption of these attributes due to down sampler. So, this work is focused on implementation of hybrid stationary wavelet transform based watermarking system using VLSI fundamentals.

Description