Perceptual Image Watermarking Algorithm Based on Magic Squares Scrambling in DWT.
Hui-fen HuangPublished in: NCM (2009)
Keyphrases
- discrete wavelet transform
- multiresolution
- human visual system
- wavelet domain
- image watermarking
- visual perception
- hough transform
- subband
- low pass
- lifting scheme
- digital watermarking
- image scrambling
- wavelet transform
- low level
- perceptual grouping
- human perception
- image encryption
- image encryption algorithm
- jpeg compression
- high level
- frequency domain
- multiscale