Randon and Ridgelet Transformation Applicaton in Image Digital Watermark
| Autor: | Ying Fang Li, Ying Jiang Li |
|---|---|
| Rok vydání: | 2013 |
| Předmět: |
business.industry
Data_MISCELLANEOUS General Engineering Wavelet transform Watermark Transformation (function) Computer Science::Multimedia Computer vision Noise (video) Artificial intelligence business Digital watermarking Rotation (mathematics) Energy (signal processing) Computer Science::Cryptography and Security Mathematics Block (data storage) |
| Zdroj: | Advanced Materials Research. :1925-1929 |
| ISSN: | 1662-8985 |
| DOI: | 10.4028/www.scientific.net/amr.756-759.1925 |
| Popis: | Propose a digital watermark algorithm that can be resisted geometric attack, in order to enhance the capacity to resist attacks such as rotation, use the 0° angle Randon transformation as the reference vector, estimate and correct the rotation transformation of the carrier image, recover the watermark synchronization. when watermark is embedded, perform wavelet transform on original image and blocked the LF sub-band, perform the Ridgelet transformation on each block; change two-value watermark to one-dimension, embedded the watermark bit into the Maximum energy direction of Ridgelet. The simulation results show that the algorithm can effective resist various attacks such as noise, filtering, compression, rotation, shearing and scaling etc, and the ability of resist various attacks is robust. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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