Rank-based image watermarking method with high embedding capacity and robustness
This paper presents a novel rank-based method for image watermarking. In the watermark embedding process, the host image is divided into blocks, followed by the 2-D discrete cosine transform (DCT). For each image block, a secret key is employed to randomly select a set of DCT coefficients suitable f...
| Main Authors: | , , , |
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| Format: | Journal Article |
| Published: |
IEEE Access
2016
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| Online Access: | http://hdl.handle.net/20.500.11937/50694 |
| _version_ | 1848758519423041536 |
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| author | Zong, T. Xiang, Y. Guo, S. Rong, Yue |
| author_facet | Zong, T. Xiang, Y. Guo, S. Rong, Yue |
| author_sort | Zong, T. |
| building | Curtin Institutional Repository |
| collection | Online Access |
| description | This paper presents a novel rank-based method for image watermarking. In the watermark embedding process, the host image is divided into blocks, followed by the 2-D discrete cosine transform (DCT). For each image block, a secret key is employed to randomly select a set of DCT coefficients suitable for watermark embedding. Watermark bits are inserted into an image block by modifying the set of DCT coefficients using a rank-based embedding rule. In the watermark detection process, the corresponding detection matrices are formed from the received image using the secret key. Afterward, the watermark bits are extracted by checking the ranks of the detection matrices. Since the proposed watermarking method only uses two DCT coefficients to hide one watermark bit, it can achieve very high embedding capacity. Moreover, our method is free of host signal interference. This desired feature and the usage of an error buffer in watermark embedding result in high robustness against attacks. Theoretical analysis and experimental results demonstrate the effectiveness of the proposed method. |
| first_indexed | 2025-11-14T09:45:17Z |
| format | Journal Article |
| id | curtin-20.500.11937-50694 |
| institution | Curtin University Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-14T09:45:17Z |
| publishDate | 2016 |
| publisher | IEEE Access |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | curtin-20.500.11937-506942017-09-13T15:37:42Z Rank-based image watermarking method with high embedding capacity and robustness Zong, T. Xiang, Y. Guo, S. Rong, Yue This paper presents a novel rank-based method for image watermarking. In the watermark embedding process, the host image is divided into blocks, followed by the 2-D discrete cosine transform (DCT). For each image block, a secret key is employed to randomly select a set of DCT coefficients suitable for watermark embedding. Watermark bits are inserted into an image block by modifying the set of DCT coefficients using a rank-based embedding rule. In the watermark detection process, the corresponding detection matrices are formed from the received image using the secret key. Afterward, the watermark bits are extracted by checking the ranks of the detection matrices. Since the proposed watermarking method only uses two DCT coefficients to hide one watermark bit, it can achieve very high embedding capacity. Moreover, our method is free of host signal interference. This desired feature and the usage of an error buffer in watermark embedding result in high robustness against attacks. Theoretical analysis and experimental results demonstrate the effectiveness of the proposed method. 2016 Journal Article http://hdl.handle.net/20.500.11937/50694 10.1109/ACCESS.2016.2556723 IEEE Access fulltext |
| spellingShingle | Zong, T. Xiang, Y. Guo, S. Rong, Yue Rank-based image watermarking method with high embedding capacity and robustness |
| title | Rank-based image watermarking method with high embedding capacity and robustness |
| title_full | Rank-based image watermarking method with high embedding capacity and robustness |
| title_fullStr | Rank-based image watermarking method with high embedding capacity and robustness |
| title_full_unstemmed | Rank-based image watermarking method with high embedding capacity and robustness |
| title_short | Rank-based image watermarking method with high embedding capacity and robustness |
| title_sort | rank-based image watermarking method with high embedding capacity and robustness |
| url | http://hdl.handle.net/20.500.11937/50694 |