Spread Spectrum Watermark for Color Image Based on Wavelet Tree Structure.
Qiujuan LiangZhizhong DingPublished in: CSSE (3) (2008)
Keyphrases
- spread spectrum
- tree structure
- image watermarking
- video watermarking
- watermarking algorithm
- watermarking scheme
- data hiding
- color images
- watermark embedding
- watermark detection
- quadtree
- digital watermarking
- data structure
- transform domain
- wavelet domain
- frequent patterns
- denoising
- wavelet coefficients
- wavelet transform
- xml documents
- bit error rate
- discrete wavelet transform
- multiresolution
- index structure
- feature extraction
- spatial domain
- multiscale
- signal processing
- watermarking technique
- lossless compression
- computer simulation
- error diffusion
- error correction