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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| Vydané v: | 2010 3rd International Conference on Advanced Computer Theory and Engineering(ICACTE) Ročník 2; s. V2-403 - V2-407 |
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| Hlavní autori: | , |
| Médium: | Konferenčný príspevok.. |
| Jazyk: | English |
| Vydavateľské údaje: |
IEEE
01.08.2010
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| Predmet: | |
| ISBN: | 1424465397, 9781424465392 |
| ISSN: | 2154-7491 |
| On-line prístup: | Získať plný text |
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| Shrnutí: | 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. |
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| ISBN: | 1424465397 9781424465392 |
| ISSN: | 2154-7491 |
| DOI: | 10.1109/ICACTE.2010.5579305 |