Please use this identifier to cite or link to this item: http://hdl.handle.net/10525/381

 Title: Improving the Watermarking Process with Usage of Block Error-Correcting Codes Authors: Berger, ThierryTodorov, Todor Keywords: WatermarkingError-Correcting CodesReed-Solomon CodesSoftware for Watermarking Issue Date: 2008 Publisher: Institute of Mathematics and Informatics Bulgarian Academy of Sciences Citation: Serdica Journal of Computing, Vol. 2, No 2, (2008), 163p-180p Abstract: The emergence of digital imaging and of digital networks has made duplication of original artwork easier. Watermarking techniques, also referred to as digital signature, sign images by introducing changes that are imperceptible to the human eye but easily recoverable by a computer program. Usage of error correcting codes is one of the good choices in order to correct possible errors when extracting the signature. In this paper, we present a scheme of error correction based on a combination of Reed-Solomon codes and another optimal linear code as inner code. We have investigated the strength of the noise that this scheme is steady to for a fixed capacity of the image and various lengths of the signature. Finally, we compare our results with other error correcting techniques that are used in watermarking. We have also created a computer program for image watermarking that uses the newly presented scheme for error correction. URI: http://hdl.handle.net/10525/381 ISSN: 1312-6555 Appears in Collections: Volume 2 Number 2

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