A new structure-preserving quaternion QR decomposition method for color image blind watermarking.
Yong ChenZhi-Gang JiaYan PengYaxin PengDan ZhangPublished in: Signal Process. (2021)
Keyphrases
- structure preserving
- decomposition method
- blind watermarking
- qr decomposition
- color images
- color texture
- transform domain
- fourier transform
- watermarking scheme
- color space
- decomposition methods
- unsupervised segmentation
- decomposition algorithm
- tree decomposition
- image processing
- color information
- multiscale
- singular value decomposition
- dimensionality reduction
- spatial domain
- error correction
- cross correlations
- color correction
- natural images
- shape decomposition