Local affine transform invariant image watermarking by Krawtchouk moment invariants.
Li ZhangWeiwei XiaoZhen JiPublished in: IET Inf. Secur. (2007)
Keyphrases
- image watermarking
- moment invariants
- affine transformation
- zernike moments
- pattern recognition
- feature vectors
- geometric distortions
- discrete wavelet transform
- jpeg compression
- watermarking algorithm
- fourier descriptors
- copyright protection
- image normalization
- efficient implementation
- additive noise
- digital watermarking
- fourier transform
- image reconstruction
- lossy compression
- rotation invariant
- machine learning
- feature points
- image compression
- high resolution