鲁棒性 Resources

Showing items tagged with "鲁棒性"

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.

MATLAB 205 views Tagged

This presents a novel watermarking algorithm for color carrier images using hypercomplex frequency domain processing. The method employs Fast Hypercomplex Fourier Transform (FHFT) to embed watermarks in selected frequency bands while modifying symmetric coefficient values, ensuring the watermarked image maintains RGB transmission compatibility. Through analysis and MATLAB implementation, the algorithm demonstrates effective error diffusion across RGB channels via inverse hypercomplex Fourier transform, achieving optimal balance between watermark imperceptibility and security. The proposed "cross-redundant embedding" strategy further enhances robustness, with experimental results validating the algorithm's superiority.

MATLAB 186 views Tagged