Using invisible watermarks to protect visibly watermarked images.
Yongjian HuSam KwongJiwu HuangPublished in: ISCAS (5) (2004)
Keyphrases
- watermarked image
- digital watermarking
- watermarking scheme
- image watermarking
- digital watermark
- digital images
- spatial domain
- spread spectrum
- copyright protection
- jpeg compression
- data hiding
- singular values
- watermarking algorithm
- watermarking technique
- communication systems
- discrete wavelet transform
- watermarking method
- low frequency
- frequency domain
- watermark detection
- transform domain
- wavelet domain
- lossy compression
- test images
- watermark embedding
- image compression
- multimedia
- computational complexity
- high frequency
- additive noise
- metadata
- digital content