A robust digital image watermarking method using Dual Tree Complex Wavelet Transform
| Autor: | Driss Aboutajdine, E. Ibn Elhaj, Samira Mabtoul |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
Computer science
business.industry ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION Wavelet transform Pattern recognition Watermark Iterative reconstruction Image (mathematics) Wavelet Robustness (computer science) Computer Science::Computer Vision and Pattern Recognition Computer Science::Multimedia Computer vision Artificial intelligence Complex wavelet transform business Digital watermarking Feature detection (computer vision) |
| Zdroj: | ISCC |
| Popis: | In this paper, a robust watermarking scheme based on Dual Tree Complex Wavelet Transform (DT-CWT) is proposed. The embedded watermark image is preprocessed with a random location matrix. The original image is transformed in the complex wavelet domain by using DT-CWT, then, according to the characteristics of the image data, the preprocessed watermark image is adaptively spread spectrum and added into the host image DT-CWT coefficients. The watermark detection process is accomplished without referring to the original image. Simulation results are presented to demonstrate the effectiveness of the proposed algorithm. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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