Robust Image Watermarking in the Wavelet Domain
The growth of new imaging technologies has created a need for techniques that can be used for copyright protection of digital images. In this paper, a new and robust spread spectrum based watermarking scheme has been proposed.The proposed scheme depend on both Discrete Wavelet Transform (DWT) and D...
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| Format: | Article |
| Language: | English |
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Faculty of Computer Science and Mathematics, University of Kufa
2010-10-01
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| Series: | Journal of Kufa for Mathematics and Computer |
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| Online Access: | https://journal.uokufa.edu.iq/index.php/jkmc/article/view/12803 |
| _version_ | 1797267009701937152 |
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| author | Dr. Hameed A. Younis |
| author_facet | Dr. Hameed A. Younis |
| author_sort | Dr. Hameed A. Younis |
| collection | DOAJ |
| description |
The growth of new imaging technologies has created a need for techniques that can be used for copyright protection of digital images. In this paper, a new and robust spread spectrum based
watermarking scheme has been proposed.The proposed scheme depend on both Discrete Wavelet Transform (DWT) and Discrete Cosine Transform (DCT). First, we decompose the image by DWT into a
single level. Then, the approximation part is divided into blocks. The embedding is done in an adaptive fashion depending on the mean (M) of the block. A chaotic sequence of real numbers, depends on a
secret key, is embedded as a watermark in the DCT coefficients of the selected blocks. Detection stage generates a watermark which would be compared with the original watermark, by the correlation measure, to determine the existing of the watermark or not. Different tests have been experimented to explain the transparency and the robust of the proposed scheme.
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| first_indexed | 2024-04-25T01:09:46Z |
| format | Article |
| id | doaj.art-d1856b3918714dc39ef272d38f36f076 |
| institution | Directory Open Access Journal |
| issn | 2076-1171 2518-0010 |
| language | English |
| last_indexed | 2024-04-25T01:09:46Z |
| publishDate | 2010-10-01 |
| publisher | Faculty of Computer Science and Mathematics, University of Kufa |
| record_format | Article |
| series | Journal of Kufa for Mathematics and Computer |
| spelling | doaj.art-d1856b3918714dc39ef272d38f36f0762024-03-10T10:57:50ZengFaculty of Computer Science and Mathematics, University of KufaJournal of Kufa for Mathematics and Computer2076-11712518-00102010-10-011210.31642/JoKMC/2018/010203Robust Image Watermarking in the Wavelet DomainDr. Hameed A. Younis0Basra University The growth of new imaging technologies has created a need for techniques that can be used for copyright protection of digital images. In this paper, a new and robust spread spectrum based watermarking scheme has been proposed.The proposed scheme depend on both Discrete Wavelet Transform (DWT) and Discrete Cosine Transform (DCT). First, we decompose the image by DWT into a single level. Then, the approximation part is divided into blocks. The embedding is done in an adaptive fashion depending on the mean (M) of the block. A chaotic sequence of real numbers, depends on a secret key, is embedded as a watermark in the DCT coefficients of the selected blocks. Detection stage generates a watermark which would be compared with the original watermark, by the correlation measure, to determine the existing of the watermark or not. Different tests have been experimented to explain the transparency and the robust of the proposed scheme. https://journal.uokufa.edu.iq/index.php/jkmc/article/view/12803Image watermarkingWavelettransformChaos theory |
| spellingShingle | Dr. Hameed A. Younis Robust Image Watermarking in the Wavelet Domain Journal of Kufa for Mathematics and Computer Image watermarking Wavelet transform Chaos theory |
| title | Robust Image Watermarking in the Wavelet Domain |
| title_full | Robust Image Watermarking in the Wavelet Domain |
| title_fullStr | Robust Image Watermarking in the Wavelet Domain |
| title_full_unstemmed | Robust Image Watermarking in the Wavelet Domain |
| title_short | Robust Image Watermarking in the Wavelet Domain |
| title_sort | robust image watermarking in the wavelet domain |
| topic | Image watermarking Wavelet transform Chaos theory |
| url | https://journal.uokufa.edu.iq/index.php/jkmc/article/view/12803 |
| work_keys_str_mv | AT drhameedayounis robustimagewatermarkinginthewaveletdomain |