An Improved Non-Blind Digital Image Watermarking on Hadamard Transform for Image Authentication
Journal Title: IOSR Journals (IOSR Journal of Computer Engineering) - Year 2016, Vol 18, Issue 3
Abstract
Abstract : With the advent of internet digital media has been improving with massive advancement in recent years. The distribution of unauthorized copies of media content has also been increasing day by day. Because of easy access to digital content, online purchasing and distribution becomes easier. Thus there is an urgent need to provide protection for digital content. One solution gaining popularity in protecting digital content is digital watermarking. In proposed scheme, a breadth-first search technique is used to find the efficient embedding point to embed the watermark. The proposed algorithm results show that the experiment offers better image quality and robustness under various attacks and alteration, such a, cropping, JPEG compression sharpening and filtering among others. The resultshave manifested the higher robustness and imperceptibility of this scheme when compared with other available watermarking techniques.
Authors and Affiliations
Sanjida Sharmin , Rahima Afrose , Lutfur Nahar , Nargis Akter
Keywords
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