Watermark Extraction in DWT Domain with MATLAB Implementation and SNR Analysis
MATLAB-based watermark extraction using Discrete Wavelet Transform (DWT) domain techniques with signal-to-noise ratio (SNR) performance evaluation
Watermarking Algorithm Combining Wavelet Transform and SVD Singular Value Decomposition
This algorithm integrates wavelet transform and SVD decomposition to implement robust watermark embedding and extraction, achieving optimized carrier image robustness and watermark invisibility. The extracted watermark maintains high consistency with the original watermark while demonstrating strong resistance to various attacks through strategic coefficient modification in wavelet-SVD domains.