Selective encryption of wavelet-packet encoded image data: efficiency and security.
Andreas PommerAndreas UhlPublished in: Multim. Syst. (2003)
Keyphrases
- wavelet packet
- image data
- wavelet packet transform
- subband
- filter bank
- denoising
- wavelet packet decomposition
- translation invariant
- image quality
- wavelet function
- high quality
- multiscale
- wavelet transform
- wavelet decomposition
- feature selection
- neural network
- access control
- image features
- object recognition
- computational complexity
- pattern recognition
- data structure
- database systems
- machine learning