Locally optimum nonlinearities for DCT watermark detection.
Alexia BriassouliMichael G. StrintzisPublished in: IEEE Trans. Image Process. (2004)
Keyphrases
- watermark detection
- dct domain
- watermarking scheme
- spread spectrum
- image watermarking
- watermarking algorithm
- digital watermarking
- digital images
- digital watermark
- copyright protection
- jpeg compression
- discrete cosine transform
- watermarking technique
- dct coefficients
- geometric distortions
- transform domain
- post processing
- spatial domain
- digital video
- human visual system
- watermark embedding
- watermarking method
- error correction
- additive noise
- watermark extraction
- lossy compression
- image processing
- low frequency
- frequency domain
- signal processing
- preprocessing
- multiscale