Article ID Journal Published Year Pages File Type
495478 Applied Soft Computing 2014 10 Pages PDF
Abstract

•A multidimensional coupled chaotic map as a pseudo random number generator is proposed.•A watermark scheme is presented.•The proposed scheme is subjected to some security analysis as well as statistical tests suites.•Watermark extraction does not require the original image.

The present paper proposes a multidimensional coupled chaotic map as a pseudo random number generator. Based on an introduced dynamical systems, a watermark scheme is presented. By modifying the original image and embedding a watermark in the difference values within the original image, the proposed scheme overcomes the problem of embedding a watermark in the spatial domain. As the watermark extraction does not require the original image, the introduced model can be employed for practical applications. This algorithm tries to improve the problem of failure of embedding in small key space, embedding speed and level of security.

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Related Topics
Physical Sciences and Engineering Computer Science Computer Science Applications
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