Article,

Digital Watermarking using Tiny Genetic Algorithm and Discrete Z Transforms

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International Journal on Recent and Innovation Trends in Computing and Communication, 3 (3): 962--964 (March 2015)
DOI: 10.17762/ijritcc2321-8169.150314

Abstract

Today, multimedia data security plays most important role in internet era. Media elements like images, audios and videos are used to embed the data. As the digital media is tremendously growing over the internet, it is very inevitable to show interest in multimedia copyright protection. The aim to propose such a system is to provide secure algorithm for protecting digital image by using digital watermarking approach and extraction of that watermark from existing image to prove the authentication. Digital watermarking is solution for protecting intellectual property of image. To achieve features like robustness and imperceptibility of the image, concept of Discrete Z-Transform is used and for generation of key, Tiny Genetic Algorithm is used. Robustness and imperceptibility are important in digital watermarking process. We assure that the result will be better to sustain attacks like cropping, rotation, filtering and compression and embedded watermark will not be affected.

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