Color image watermarking using local quaternion Fourier spectral analysis.
Xiaojun MaYi XuLi SongXiaokang YangHans BurkhardtPublished in: ICME (2008)
Keyphrases
- spectral analysis
- image watermarking
- fourier transform
- color images
- jpeg compression
- watermarking algorithm
- discrete wavelet transform
- copyright protection
- autoregressive
- additive noise
- geometric distortions
- signal processing
- filter bank
- frequency domain
- speech signal
- lossy compression
- image processing
- image reconstruction
- image regions
- computer vision
- maximum likelihood
- gray level images
- markov random field
- digital images
- digital watermarking