Multipurpose image watermarking in DCT domain using subsampling.
Fan GuZhe-Ming LuJeng-Shyang PanPublished in: ISCAS (5) (2005)
Keyphrases
- image watermarking
- dct domain
- dct coefficients
- jpeg compression
- spatial domain
- watermarking algorithm
- digital watermarking
- transform domain
- copyright protection
- compressed domain
- additive noise
- post processing
- discrete wavelet transform
- spread spectrum
- discrete cosine transform
- human visual system
- watermarking technique
- digital video
- wavelet domain
- low frequency
- watermark detection
- high frequency
- frequency domain
- lossy compression
- geometric distortions
- image blocks
- watermarking scheme
- image compression
- reference frame
- signal processing
- watermark embedding
- subband
- watermarked image
- digital images
- multiresolution
- multiscale