A new encryption method for secure embedding in image watermarking

Digital image watermarking is the process of embedding an identifying piece of data in a digital image. In this study, a secure watermarking scheme for images with confident capacity is explored, based on fractal image coding and a chaotic function. In this paper an image encryption scheme is presen...

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Vydáno v:2010 3rd International Conference on Advanced Computer Theory and Engineering(ICACTE) Ročník 2; s. V2-403 - V2-407
Hlavní autoři: Keyvanpour, Mohammad Reza, Farnoosh, M
Médium: Konferenční příspěvek
Jazyk:angličtina
Vydáno: IEEE 01.08.2010
Témata:
Arnold's cat map
Boats
Chaos fractal coding
Computers
Fractal coding
Image coding
Image watermarking
security
uniform capacity
ISBN:1424465397, 9781424465392
ISSN:2154-7491
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Abstract Digital image watermarking is the process of embedding an identifying piece of data in a digital image. In this study, a secure watermarking scheme for images with confident capacity is explored, based on fractal image coding and a chaotic function. In this paper an image encryption scheme is presented, in which shuffling the position of image pixels is performed using the Arnold's Cat Map to ensure a high level of security. In the next step this chaotic image is divided into range blocks and domain blocks for discovering the self-similarity property, producing vectors stations and embedding watermark bits. The main idea of the fractal based image coder in the proposed algorithm is to determine a set of contractive transformations to approximate each block of the image with a larger block. Simulation results show that the CFC algorithm (Chaos-Fractal Coding) has a better capacity and good invisibility. The technique proposed in this paper is quite general, and can be applied to any watermarking scheme without changing the embedding algorithm.
AbstractList Digital image watermarking is the process of embedding an identifying piece of data in a digital image. In this study, a secure watermarking scheme for images with confident capacity is explored, based on fractal image coding and a chaotic function. In this paper an image encryption scheme is presented, in which shuffling the position of image pixels is performed using the Arnold's Cat Map to ensure a high level of security. In the next step this chaotic image is divided into range blocks and domain blocks for discovering the self-similarity property, producing vectors stations and embedding watermark bits. The main idea of the fractal based image coder in the proposed algorithm is to determine a set of contractive transformations to approximate each block of the image with a larger block. Simulation results show that the CFC algorithm (Chaos-Fractal Coding) has a better capacity and good invisibility. The technique proposed in this paper is quite general, and can be applied to any watermarking scheme without changing the embedding algorithm.
Author Farnoosh, M
Keyvanpour, Mohammad Reza
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  organization: Dept. of Comput. Eng., Islamic Azad Univ., Qazvin, Iran
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Snippet Digital image watermarking is the process of embedding an identifying piece of data in a digital image. In this study, a secure watermarking scheme for images...
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SubjectTerms Arnold's cat map
Boats
Chaos fractal coding
Computers
Fractal coding
Image coding
Image watermarking
security
uniform capacity
Title A new encryption method for secure embedding in image watermarking
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