A new locally optimum watermark detection using vector-based hidden Markov model in wavelet domain.
Marzieh AminiM. Omair AhmadM. N. S. SwamyPublished in: Signal Process. (2017)
Keyphrases
- hidden markov models
- wavelet domain
- watermarking algorithm
- watermark detection
- discrete wavelet transform
- watermark embedding
- spatial domain
- denoising
- image watermarking
- digital watermarking
- wavelet coefficients
- dct domain
- jpeg compression
- human visual system
- wavelet transform
- multiscale
- multiresolution
- spread spectrum
- copyright protection
- image denoising
- subband
- wavelet decomposition
- speech recognition
- high frequency
- geometric distortions
- watermarking scheme
- transform domain
- watermarking technique
- feature vectors
- lossy compression
- dct coefficients
- feature space
- frequency domain
- image processing
- pattern recognition
- video sequences
- gaussian noise
- motion estimation
- image quality
- noisy images
- visual quality