بکارگیری نگاشت های آشوبناک گسسته به منظور رمزگذاری به روش کلید عمومی

احمدپور کلخوران, صدیف and بهنیا, سهراب (2008) بکارگیری نگاشت های آشوبناک گسسته به منظور رمزگذاری به روش کلید عمومی. University of Mohaghegh Ardabili.

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Abstract

We propose the multidimensional chaotic map as a pseudo random number generator.In this paper, a robust watermark scheme for copyright protection is proposed. By modifying the original image in transform domain and embedding a watermark in the difference values between the original image and its reference image, the proposed scheme overcomes the weak robustness problem of embedding a watermark in the spatial domain. Besides, the watermark extraction does not require the original image so it is more practical in real application. The experimental resultsshow that the proposed scheme provides not only good image quality, but is also robust against various attacks, such as JPEG lossy compression, filtering and noise addition. Testing is performed.

Item Type: Other
Persian Title: بکارگیری نگاشت های آشوبناک گسسته به منظور رمزگذاری به روش کلید عمومی
Persian Abstract: -
Subjects: Research Projects
Divisions: Subjects > Faculty of Basic Sciences > Department of Physics
Faculty of Basic Sciences > Department of Physics
Date Deposited: 23 Jun 2019 06:15
Last Modified: 23 Jun 2019 06:15
URI: http://repository.uma.ac.ir/id/eprint/8037

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