دورية أكاديمية
Redundant Wavelet Watermarking using Spread Spectrum Modulation
| العنوان: | Redundant Wavelet Watermarking using Spread Spectrum Modulation |
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| المؤلفون: | V. H. Mankar, T. S. Das, S. Sarkar, S. K. Sarkar |
| المصدر: | ELCVIA Electronic Letters on Computer Vision and Image Analysis, Vol 7, Iss 2 (2008) |
| بيانات النشر: | Computer Vision Center Press, 2008. |
| سنة النشر: | 2008 |
| المجموعة: | LCC:Computer engineering. Computer hardware LCC:Electronic computers. Computer science |
| مصطلحات موضوعية: | Spread Spectrum Modulation, Discrete Wavelet Frame (DWF), Over Complete Representation, Redundant Wavelet Transform (RDWT), Image Watermarking, Computer engineering. Computer hardware, TK7885-7895, Electronic computers. Computer science, QA75.5-76.95 |
| الوصف: | Spread Spectrum modulation has become a preferred paradigm in many watermarking applications. This paper analyzes the performance of such a blind watermarking scheme under discrete wavelet frame rather than a traditional orthonormal wavelet expansion. The over complete representation offered by the redundant frame facilitates the identification of significant image features via a simple correlation operation across scales. The performance and resiliency of the proposed technique are analyzed against several volumetric distortion sources. The experimental results of this oblivious algorithm illustrate better visual and statistical imperceptibility and robustness compared to the usually critically sampled discrete wavelet transform. This algorithmic architecture utilizes the existing allocated bandwidth in the data transmission channel in a more efficient manner. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1577-5097 |
| Relation: | https://elcvia.cvc.uab.es/article/view/267; https://doaj.org/toc/1577-5097 |
| DOI: | 10.5565/rev/elcvia.267 |
| URL الوصول: | https://doaj.org/article/23a18a95cbab43849c24e228dc33b482 |
| رقم الأكسشن: | edsdoj.23a18a95cbab43849c24e228dc33b482 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 15775097 |
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| DOI: | 10.5565/rev/elcvia.267 |