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What is Quasi Blind Watermark Extraction Technique about?

This paper introduces a quasi-blind watermark extraction technique using the Natural Preserve Transform (NPT) for embedding gray scale logos into host images. The method allows for efficient extraction with minimal prior knowledge of the host image, demonstrating robustness against various image processing attacks such as cropping and noise. Experimental results indicate that the proposed technique outperforms many existing methods in terms of visual quality and watermark recovery performance.

Author

Gamal Fahmy

Language

EN