Keyphrases
- image watermarking
- wavelet transform
- discrete wavelet transform
- wavelet domain
- human visual system
- wavelet coefficients
- spread spectrum
- watermarking algorithm
- watermark embedding
- subband
- multiresolution
- image compression
- jpeg compression
- multiscale
- lossy compression
- high frequency
- additive noise
- low frequency
- image quality
- digital watermarking
- geometric distortions
- copyright protection
- feature extraction
- visual quality
- watermarking technique
- data hiding
- motion estimation
- digital content
- signal processing
- image denoising
- filter bank