A Blind Watermarking Technique for Color Image based on SVD with Circulation
| Autor: | Yiqin Cao, Hongqin Shi, Fangliang Lv |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Color image
Computer science business.industry Watermark Image processing Chebyshev filter Human-Computer Interaction Singular value Digital image Artificial Intelligence Computer Science::Multimedia Singular value decomposition Computer vision Artificial intelligence business Digital watermarking Software Computer Science::Cryptography and Security |
| Zdroj: | Journal of Software. 9 |
| ISSN: | 1796-217X |
| Popis: | Digital watermarking is a method for protecting copyrighted materials such as digital images. This paper presents a new color watermark embedding technique with circulation, based on non-overlapping Singular Value Decomposition (SVD) for hiding important information in images. First, the real-color original image is decomposed into three components R, G and B. The blue component and the watermark performed by Chebyshev chaotic map are divided into non-overlapping blocks, respectively. Then an SVD is performed on each partitioned blocks. Second, the Singular Values (SVs) of watermark are embedded into the singular value matrix of blue component with circulation. Extracting any consecutive four rows and columns from the blocked watermarked image can get complete watermark information. Every watermark bits have been embedded several times and their embedding position are consecutive in the selected original image. That is why, our proposed scheme is naturally secure to geometric attacks and compound attacks, and it is also strongly robust against common image processing attacks. Index Terms—Copyrighted materials, Circulation, Chebyshev chaotic map, Singular values |
| Databáze: | OpenAIRE |
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