Robust image watermarking based on discrete wavelet transform-discrete cosine transform-singular value decomposition.
Wu-Chih HuWei-Hao ChenChing-Yu YangPublished in: J. Electronic Imaging (2012)
Keyphrases
- singular value decomposition
- discrete wavelet transform
- discrete cosine transform
- robust image watermarking
- subband
- image compression
- filter bank
- multiresolution
- wavelet domain
- transform domain
- dct coefficients
- wavelet coefficients
- high frequency
- least squares
- spatial domain
- image blocks
- wavelet transform
- jpeg compression
- low frequency
- low rank
- singular values
- image coding
- dimensionality reduction
- image fusion
- feature vectors
- frequency domain
- jpeg images
- principal component analysis
- image processing
- denoising
- compression ratio
- image quality
- fast fourier transform
- neural network