DCT-domain watermark detector using a normal inverse Gaussian prior.
Mohammed Imamul Hassan BhuiyanRubaiya RahmanPublished in: CCECE (2010)
Keyphrases
- dct domain
- watermark detection
- dct coefficients
- spatial domain
- human visual system
- video watermarking
- post processing
- transform domain
- compressed domain
- discrete cosine transform
- digital video
- jpeg compression
- low pass filtering
- quantization step
- image blocks
- watermarking algorithm
- compressed images
- low frequency
- frequency domain
- spread spectrum
- wavelet domain
- digital images
- similarity measure
- jpeg images
- gaussian noise
- image watermarking
- copyright protection
- watermarking technique
- reference frame
- watermarking scheme
- wavelet transform
- feature vectors
- preprocessing