Optimum multiplicative watermark detector in contourlet domain using the normal inverse Gaussian distribution.
Hamidreza SadreazamiM. Omair AhmadM. N. Shanmukha SwamyPublished in: ISCAS (2015)
Keyphrases
- gaussian distribution
- contourlet domain
- wavelet domain
- watermarking algorithm
- sar images
- maximum likelihood
- fusion model
- subband
- contourlet transform
- digital images
- spatial domain
- human visual system
- gaussian mixture model
- wavelet coefficients
- watermarking scheme
- copyright protection
- expectation maximization
- jpeg compression
- digital watermarking
- multiscale
- wavelet transform
- image denoising
- machine learning
- watermarking technique
- multiresolution
- remote sensing
- natural images
- feature vectors