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Published in:
2016 | OriginalPaper | Chapter
Database Retrieval-Based Digital Watermarking for Educational Institutions
Authors : T. Sridevi, S. Sameen Fatima
Published in: Proceedings of the International Congress on Information and Communication Technology
Publisher: Springer Singapore
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Abstract
Multimedia broadcast monitoring is one of the major challenges and has drawn the attention of several researchers. Database retrieval technique is an application used to provide security for the sensitive images. Image authentication is provided by adding a watermark of the given string to the sensitive images. The security for image is provided by encoding the given image with the key which is provided by the user and is stored in the database as a numeric data. User is provided with a unique id which is sent to the receiver. Receiver uses this unique id for retrieving the image. Digital image watermarking is one among the several methods that hides information. Two factors are considered during watermarking, imperceptibility, and robustness. Measure of imperceptibility is PSNR and robustness is NC. Genetic algorithm is employed in the proposed watermarking algorithm.