A Secure Hierarchical Fragile Watermarking Method with Tamper Localization.
Xianhai ZhangYongtian YangYan ZhuPublished in: IMSCCS (2) (2006)
Keyphrases
- watermarking method
- digital watermarking
- jpeg images
- watermarking scheme
- watermarking algorithm
- copyright protection
- semi fragile
- discrete wavelet transform
- image authentication
- tampering detection
- digital images
- spread spectrum
- gray level
- jpeg compression
- authentication scheme
- dct coefficients
- tamper detection
- multiscale