Watermark Security via Secret Wavelet Packet Subband Structures.
Werner DietlAndreas UhlPublished in: Communications and Multimedia Security (2003)
Keyphrases
- wavelet packet
- subband
- filter bank
- wavelet transform
- multiresolution
- wavelet packet decomposition
- image compression
- wavelet packet transform
- bit rate
- wavelet decomposition
- feature vectors
- discrete wavelet transform
- wavelet domain
- high frequency
- wavelet coefficients
- frequency band
- low frequency
- translation invariant
- watermarking algorithm
- image coding
- denoising
- frequency domain
- image coder
- digital watermarking
- locally adaptive
- visual quality
- rate distortion
- image quality
- pattern recognition
- copyright protection
- watermarking scheme
- compression ratio
- multiscale
- lossy compression
- human visual system